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GE Corometrics 170 Series, Service Manual

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GE Corometrics 170 Series Service Manual Download Page 61

Revision C

170 Series Monitor

5-1

2000947-004

Chapter 5

Theory of Operation

5

This section of the manual contains the electronic theory of operation for the 170 
Series Monitor.  When possible, references are made to the appropriate schematic 
contained in 

“Chapter 11, Parts Lists”

 of this manual

Throughout this chapter, signal names ending with an asterisk (*) are active low.

This chapter contains the following information:

Functional Overview

 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

5-2

Main Board Theory of Operation

. . . . . . . . . . . . . . . . . . . . . . . . . . . 

5-17

FECG/IUP Board Theory of Operation

. . . . . . . . . . . . . . . . . . . . . . 

5-36

Summary of Contents for Corometrics 170 Series

Page 1: ...Corometrics 170 Series SERVICE MANUAL MANUAL P N 2000947 004 REV C ...

Page 2: ......

Page 3: ...Corometrics 170 Series SERVICE MANUAL MANUAL P N 2000947 004 REV C ...

Page 4: ...is guarantee is limited to repairing or at our option replacing any defective parts of our equipment except fuses or batteries without charge if such defects occur in normal service Claims for damage in shipment should be filed promptly with the transportation company All correspondence covering the instrument should specify the model and serial numbers GE Medical Systems Information Technologies ...

Page 5: ...pment Symbols 1 9 2 Introduction 2 1 Indications for Use 2 2 Monitoring Methods 2 3 Features 2 4 About Your Monitor 2 5 3 Controls Indicators and Connectors 3 1 Front Panel Controls 3 2 Front Panel Displays and Indicators 3 6 Front Panel Connectors 3 8 Strip Chart Recorder 3 12 Rear Panel Connectors 3 14 4 Setup Procedures 4 1 Loading Strip Chart Paper 4 2 Turning the Monitor On 4 7 ...

Page 6: ...IUP Board Theory of Operation 5 36 6 Functional Checkout Procedure 6 1 Equipment Required 6 2 General 6 3 Monitor Self Test 6 4 Front Panel Pushbutton Test 6 5 Connecting the Simulator 6 6 FECG Test 6 7 Legplate Inspection 6 12 Ultrasound Test 6 13 Fetal Movement Detection Test 6 16 Ultrasound Transducer Test 6 18 Uterine Activity Test 6 19 Tocotransducer Test 6 21 Strain Gauge Transducer Test 6 2...

Page 7: ...ltrasound Transducer Top Cover Replacement 7 30 Nautilus Transducer Reassembly 7 32 Testing a Repaired Transducer TOCO or US 7 34 Replacing the Main Board 7 35 Replacing the FECG IUP Board 7 36 Replacing the Membrane Switch Panel 7 37 Replacing a Front Panel Connector 7 40 Servicing the Recorder 7 41 Boot ROM Error Codes 7 49 8 Peripheral Devices 8 1 Remote Marks Connectors 8 2 Telemetry Connector...

Page 8: ...del 173 Final Assembly 11 8 2001972 038 Model 174 Final Assembly 11 11 2264AAX Button Style Nautilus Tocotranducer Assembly Parts List 11 14 5700GAX Button Style Nautilus Ultrasound Transducer Assembly Parts List 11 15 5700KAX Loop Style Nautilus Ultrasound Transducer Assembly Parts List 11 16 2264DAX Loop Style Nautilus Tocotransducer Assembly Parts List 5 ft cord 11 17 1509AAO BAO Qwik Connect P...

Page 9: ... to enhance equipment reliability This chapter describes how the terms Danger Warning Caution Important and Note are used throughout the manual In addition standard equipment symbols are defined This section includes the following important information General Information 1 2 Definitions of Terminology 1 3 Monitor Contraindications Warnings and Precautions 1 4 Equipment Symbols 1 9 ...

Page 10: ...by persons authorized by GE the electrical installation of the relevant room complies with the requirements of appropriate regulations and the monitor is used in accordance with the instructions of use Responsibility of the User This device is intended for use by clinical professionals who are expected to know the medical procedures practices and terminology required to monitor obstetrical patient...

Page 11: ... DANGER notice indicates an imminently hazardous situation which if not avoided will result in death or serious injury Warning A WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury Caution A CAUTION indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Cautions are also used to avoid dama...

Page 12: ...llation all personnel must avoid contact with the patient and monitor to avoid a dangerous shock hazard In addition proper placement of the paddles in relation to the electrodes is required to minimize harm to the patient ELECTRICAL SHOCK To reduce the risk of electrical shock do not remove monitor cover Refer servicing to qualified personnel ELECTROMAGNETIC INTERFERENCE Be aware that strong elect...

Page 13: ...egular intervals by a qualified care provider who will make diagnoses and decide on treatments and interventions INTERFACING OTHER EQUIPMENT Monitoring equipment must be interfaced with other types of medical equipment by qualified biomedical engineering personnel Be certain to consult manufacturers specifications to maintain safe operation LEAKAGE CURRENT TEST The interconnection of auxiliary equ...

Page 14: ...determinations and alarm activation or inhibition STRANGULATION Make sure all patient cables leadwires and tubing are positioned away from the patient s head to minimize the risk of accidental strangulation WATER BIRTHS Do not use the monitor to directly monitor patients during water births in whirlpool or submersion water baths during showers or in any other situation where the mother is immersed...

Page 15: ...llow the instructions in Chapter 4 Setup Procedures ENVIRONMENT The performance of the monitor has not been tested in certain areas such as x ray and imaging suites The monitor is not recommended for use in these environments PERFORMANCE Report all problems experienced with the monitor If the monitor is not working properly contact your Service Representative for service The monitor should not be ...

Page 16: ...ose proximity or strength of a source may result in disruption of performance of this device This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with these instructions may cause harmful interference with other devices in the vicinity Disruption or interference may be evidenced by erratic readings cessation of operation or incorrect func...

Page 17: ...uments TYPE B EQUIPMENT Type B equipment is suitable for intentional external and internal application to the patient excluding direct cardiac application TYPE BF EQUIPMENT Type BF equipment is suitable for intentional external and internal application to the patient excluding direct cardiac application Type BF equipment has an F type applied part TYPE CF EQUIPMENT Type CF equipment is suitable fo...

Page 18: ...1 10 170 Series Monitor Revision C 2000947 004 Safety Equipment Symbols For your notes ...

Page 19: ...indications for use for monitors in the 170 Series as well as provides an explanation of the different patient monitoring modalities This section summarizes the clinical applications of monitors in the 170 Series Indications for Use 2 2 Monitoring Methods 2 3 Features 2 4 About Your Monitor 2 5 ...

Page 20: ...toring of the fetus during the antepartum period as well as throughout labor and delivery Each monitor also has an optional monitoring mode to detect fetal body movements Models 173 and 174 Models 173 and 174 Fetal Monitors are indicated for use in the monitoring of the fetus throughout labor and delivery Each monitor also has an optional monitoring mode to detect fetal body movements ...

Page 21: ...74 only The Model 173 provides a dedicated FECG connector The Model 174 provides a combi connector which can be used for either FECG or US FECG signals are obtained via a spiral electrode attached to the fetal presenting part FHR is computed on a beat to beat basis using the R to R time interval of the QRS complexes The instantaneous FHR pattern is printed on the strip chart paper and the FHR appe...

Page 22: ...r provides an advanced level of system performance Transducer connectors are easy to use color coded and durable Frequently used functions are controlled by front panel buttons including audio volume uterine activity reference alarm silence event mark paper advance and user setup controls The ultrasound mode provides clean accurate traces with few dropouts because of a patented autocorrelation pro...

Page 23: ... provides external uterine activity monitoring using a tocotransducer or internal monitoring using an intrauterine pressure catheter IUPC Model 174 The Model 174 Intrapartum Monitor provides dual heart rate monitoring using FECG ultrasound or dual ultrasound The monitor also provides external uterine activity monitoring using a tocotransducer or internal monitoring using an IUPC Table 2 1 Summary ...

Page 24: ...2 6 170 Series Monitor Revision C 2000947 004 For your notes ...

Page 25: ...tors 3 This section describes all possible controls indicators and connectors in the 170 Series This section contains the following information Front Panel Controls 3 2 Front Panel Displays and Indicators 3 6 Front Panel Connectors 3 8 Strip Chart Recorder 3 12 Rear Panel Connectors 3 14 ...

Page 26: ...C 2000947 004 Controls Indicators and Connectors Front Panel Controls Front Panel Controls Figure 3 1 Front Panel Controls Model 172 shown Table 3 1 Front Panel Controls Symbol Name Power Record Paper Advance Mark Offset Setup Volume ...

Page 27: ...ng the Paper Advance button causes the recorder to advance chart paper at a rate of 40 cm min for as long as the button is pressed If the recorder is on twenty seconds after the button is released the recorder prints the time date active trends legends and chart speed Mark Offset Button The Mark Offset button is a multifunction button Mark Briefly pressing the button prints an event mark on the bo...

Page 28: ... speaker The volume buttons are also used during setup Model 171 This monitor has two volume buttons used to control the ultrasound audio Models 172 173 and 174 These monitors have four volume buttons The left pair controls the audio signals for the mode shown in the primary FHR display likewise the right pair of buttons controls the audio for the mode shown in the secondary FHR display Setup Mode...

Page 29: ...released While the button is held down the strip chart tracing remains unchanged Once the button is released the recorder trace takes on this new value This value is stored as the new baseline for the currently measured uterine activity signal Setting a Baseline for Internal Monitoring IUPC Pressing the UA Reference button sets the pressure baseline at 0 mmHg NOTE IUPC monitoring is only available...

Page 30: ...mmary of display positions relative to connectors Uterine Activity Display This green three digit display indicates the uterine activity values Tocotransducer If uterine activity is measured using a tocotransducer the uterine activity value displays in relative units A plus sign flashes when the uterine activity value exceeds the strip chart range of 100 relative units IUP Models 173 and 174 Only ...

Page 31: ...g alarms Audio Alarm Indicator Active Patient Alarms For active patient alarms this yellow indicator flashes it continues to flash even if the alarm is silenced Resolved Patient Alarms For resolved patient alarms the indicator continues to flash until you silence the alarm This ensures that the alarm is acknowledged by a clinician Signal Quality Alarms For signal quality alarms the indicator flash...

Page 32: ...ansducer shows in the fetal heart rate display Uterine Activity Connector The uterine activity connector is a white round receptacle mechanically keyed to accept a Corometrics tocotransducer The uterine activity value obtained from this transducer shows in the uterine activity display 1 If the Model 171 is interfaced to a clinical information system CIS be aware that the CIS may be designed to ala...

Page 33: ...eptacle identical to the primary ultrasound connector described above The fetal heart rate derived from this connector displays in the secondary fetal heart rate display Uterine Activity Connector The uterine activity connector is a white round receptacle mechanically keyed to accept a Corometrics tocotransducer The uterine activity value obtained from this transducer shows in the uterine activity...

Page 34: ...l heart rate derived from the spiral electrode displays in the secondary fetal heart rate display Uterine Activity Connector The uterine activity connector is a white round receptacle mechanically keyed to accept a Corometrics tocotransducer a Corometrics strain gauge transducer plug or any intrauterine pressure catheter with compatible cable plug The uterine activity value obtained from this tran...

Page 35: ...tion of monitoring twins using dual US or FECG US Secondary Ultrasound Connector The secondary ultrasound connector 1 is a blue round receptacle mechanically keyed to accept only a Corometrics ultrasound transducer plug The fetal heart rate derived from this connector shows in the secondary fetal heart rate display Uterine Activity Connector The uterine activity connector is a white round receptac...

Page 36: ...r instructions on loading strip chart paper into the recorder Heart Rate Grid One or two fetal heart rate trends print in the top or left grid of the strip chart paper depending on your model monitor and the active modalities If only one fetal heart rate is being monitored the FHR trend is printed in black If twins are being monitored the primary trend is printed in plain black while the secondary...

Page 37: ...vity Grid The uterine activity trend prints in black on the bottom or right grid of the strip chart paper Refer to the 170 Series Operator s Manual for more information about uterine activity trends and annotations Annotation Area An annotation area is provided between the fetal heart rate and uterine activity grids ...

Page 38: ...onnector This connector is provided for attaching an optional Corometrics Model 146 Fetal Acoustic Stimulator FAST The annotation prints on the strip chart each time the Model 146 is used Remote Mark Connector This connector is provided for attaching an optional Corometrics Remote Event Marker This accessory annotates the strip chart recorder paper with a marker which can be configured as one of t...

Page 39: ... is 0 V Do not attempt to connect cables to these connectors without contacting your Biomedical Engineering Department or Service Representative This is to ensure the connectors comply with leakage current requirements of one of the following applicable standards Underwriters Laboratories UL 2601 1 Canadian Standards Associations CSA 22 2 No 125 or International Electrotechnical Commission EN60601...

Page 40: ...3 16 170 Series Monitor Revision C 2000947 004 For your notes ...

Page 41: ...ssories attached to it the clinical applications in which it is used and the personal preferences of the users This chapter lists all available user setup options in the monitor and provides step by step instructions for making selections Loading Strip Chart Paper 4 2 Turning the Monitor On 4 7 Recorder Test 4 9 Customizing the Monitor 4 10 Printing a Summary of Configuration Settings 4 17 Quick R...

Page 42: ... REF 4305AAO BAO CAO DAO may produce inferior print quality could result in permanent damage to the recorder s print head and may void your warranty STORAGE TRANSPORT Paper should be installed in the monitor s strip chart recorder at all times This reduces particle build up on the printhead and facilitates opening the recorder door To protect against paper jams the 170 Series recorder contains a p...

Page 43: ...teps CAUTION LOADING PAPER Paper loading instructions for a 170 or 120 Series Monitor are different than other Corometrics monitors with which you may be familiar 1 Press on each side of the paper drawer to release the drawer latches Figure 4 1 Releasing the Drawer Latches 2 Slide the paper drawer out toward you Figure 4 2 Opening the Paper Drawer 3 Remove the plastic wrapper from the paper and di...

Page 44: ...4 3 Fanning the Paper 5 Hold the package of paper so that the black squares are on the bottom of the pack and the Information Technologies name and page numbers are on the left side of the pack NOTE The black squares indicate the end of the recorder paper When the black squares appear the strip chart recorder has approximately 20 minutes of paper remaining when running at a speed of 3 cm min Figur...

Page 45: ... Loading Strip Chart Paper 6 Unfold two sheets from the top of the pack so that they extend toward you Figure 4 5 Creating a Paper Leader 7 Place the pack in the drawer so that the pack is laying flat in the bottom of the paper tray Figure 4 6 Inserting the Paper ...

Page 46: ...ure on both sides of the drawer Avoid skewing the drawer in its tracks The pre printed vertical lines on the paper should be parallel to the printhead You will hear a click when the drawer is locked in place Figure 4 8 Closing the Paper Drawer IMPORTANT PAPER Paper should always be installed in the monitor The monitor runs a self test routine each time it is powered on part of this routine include...

Page 47: ...onnect the AC adapter into the power supply connector labeled CONNECT TO GE MEDICAL SYSTEMS REF 7714AAT ONLY Figure 4 9 Connecting the AC Adapter 2 Connect one end of the detachable line cord to the AC adapter connect the other end into a hospital grade grounded wall outlet 3 Press the monitor s Power button The green indicator next to the button illuminates A self test routine automatically runs ...

Page 48: ...st routine will turn the recorder on then turn it off after the tests are complete If the recorder was on at the time the monitor was turned off the tests will be performed and the recorder will remain on Table 4 1 Summary of Self Test Routines Test Description What to Verify Display Indicator Test All displays and indicators illuminate Ensure all indicators and each segment of the displays illumi...

Page 49: ...7 004 Setup Procedures Monitor Self Test Routines Figure 4 11 Recorder Test GEMEDICALSYSTEMS 4305CAO kPa UA mm Hg 100 75 50 25 0 12 10 8 4 2 6 0 FHR bpm 30 60 90 120 150 180 240 210 41153 TEST ARE ALLDOTS PRINTED PAGES REMAING 30 240 HR Scale ...

Page 50: ...ing enable disable fetal movement detection if purchased and installed select the language for printing on the strip chart paper set the chart speed select the paper scale choose a communication mode for each rear panel communications port set the baud rate for each communications port select the remote mark annotation style enable disable fetal heart rate offset Models 172 173 and 174 only enable...

Page 51: ... Table 4 2 Press to switch displays The heartbeat indicator lights 2 1 Use to change the value to 185 BPM See Table 4 2 Press to switch displays again The sign lights Repeat steps 2 to 5 1 3 4 5 2 Monitor Feature Code e g FHR Alarms or High Alarm Limit Press to switch between displays Use or to change the number Setting or value for selected feature e g FHR Alarms On or 180 BPM High Alarm Limit Us...

Page 52: ...t until the monitor completes the self test routine and enters the normal operating mode Press and hold the Setup button for three seconds to enter the user setup mode Service To enter the service mode Press and hold the Setup button Press and hold the blue Power button Release both buttons The service mode is now activated 2 Use the UA Reference button to toggle between the setup code shown in th...

Page 53: ...g the Setup button in order for changes to take effect NOTE If an alarm is in progress when you exit the user setup mode any changes to an alarm setting do not take effect until the alarm condition is resolved Table 4 2 lists the available settings for the user setup mode Table 4 3 lists the available settings for the service setup mode Table 4 4 provides a summary of the factory default settings ...

Page 54: ...splay Code Description 1 FHR Alarms 0 off disabled 1 on enabled 2 FHR High Alarm Limit 140 210 BPM in increments of 5 BPM 3 FHR Low Alarm Limit 50 140 BPM in increments of 5 BPM 4 FHR Alarm Volume 2 10 10 Minutes time setting 0 59 minutes 11 Hours time setting 0 23 hours 12 Day of Month date setting 1 31 day 13 Month date setting 1 12 month 14 Year date setting 00 99 year ...

Page 55: ... Spanish 2 German 3 French 4 Japanese 5 Italian 6 Swedish 7 Dutch 8 Portuguese 9 Chinese 24 chart speed 1 1 2 2 3 3 cm min 25 paper scale 0 30 240 1 50 210 BPM 30 40 communications mode port 1 2 0 HP 1 HP w notes 2 ext BP 3 factory test 4 ext FSpO2 5 115 update 6 115 transmit receive 31 41 baud rate port 1 2 300 600 1200 2400 4800 9600 19200 38400 50 remote mark annotation style 0 FM 1 arrow 51 fu...

Page 56: ...Elimination Models 173 and 174 only off Heartbeat Coincidence Models 172 173 and 174 only off Fetal Movement Detection if purchased and installed on Language set according to shipping destination Recorder Speed United States 3 cm min International 1 cm min Paper Scale United States 30 240 BPM International 50 210 BPM RS 232 Port 1 Communications Mode HP RS 232 Port 1 Baud Rate 1200 RS 232 Port 2 C...

Page 57: ...mmary of configuration settings on the strip chart paper NOTE You can only enter the service setup mode from a power off state 1 Enter the service mode Press and hold the Setup button Press and hold the blue Power button Release both buttons The service mode is now activated 2 Press the Record button Figure 4 13 shows a sample printout Figure 4 13 Configuration Summary Printout ...

Page 58: ...lowing page if you wish to make additional copies for training Additional Quick Reference Cards can be purchased by calling one of the numbers listed in the front of this manual Table 4 5 provides a summary of the Quick Reference Card re order numbers Table 4 5 170 Series Quick Reference Card Language Document Part Number English 2003024 001 Chinese 2003024 002 Dutch 2003024 003 French 2003024 004...

Page 59: ...Revision C 170 Series Monitor 4 19 2000947 004 Setup Procedures Quick Reference Card ...

Page 60: ...r one time use only In other words you need an individual Flasher disk for each monitor being upgraded Table 4 6 lists the Flasher kits available for the 170 Series Table 4 6 Flasher Kits Kit Description Catalog Number Fetal Movement Detection Feature Addition 1700AAO Software Upgrade to Version 3 2x which includes the following features Heartbeat coincidence Portuguese Chinese languages 1701BAO o...

Page 61: ... 170 Series Monitor When possible references are made to the appropriate schematic contained in Chapter 11 Parts Lists of this manual Throughout this chapter signal names ending with an asterisk are active low This chapter contains the following information Functional Overview 5 2 Main Board Theory of Operation 5 17 FECG IUP Board Theory of Operation 5 36 ...

Page 62: ...r Models 173 and 174 a separate FECG IUP Board controls intrapartum front ends isolation for analog signals Figure 5 1 provides an overview of the system architecture Table 5 1 through Table 5 17 provide pinouts for each of the external connectors and the internal main board harness connectors Figure 5 2 through Figure 5 9 provide illustrations of the front and rear panel connectors Figure 5 1 Ove...

Page 63: ... C 170 Series Monitor 5 3 2000947 004 Theory of Operation Functional Overview Figure 5 2 Main Power Connector Table 5 1 Main Power Connector Pin Number Description 1 12 Vdc Input 2 Negative Input 3 Shield 1 2 3 ...

Page 64: ...ut 24 Volts for Recorder 4 24V Input 24 Volts for Recorder 5 HGND Input Ground for 24V 6 HGND Input Ground for 24V 7 HGND Input Ground for 24v 8 HGND Input Ground for 24V 9 HGND Input Ground for 24V 10 5v Input 5V for Logic 11 NC No Connection 12 NC No Connection 13 STB0 Input Head Strobe 0 14 STB1 Input Head Strobe 1 15 STB2 Input Head Strobe 2 16 STB3 Input Head Strobe 3 17 BSCK Input Head Seria...

Page 65: ...Motor Phase 2 7 P1 Output Motor Phase 1 8 5VM Output 5 Volts for Motor Table 5 4 Recorder Sensor Connector Pin Number Signal Name Signal Type Relative to Main board Signal Description 1 NC No Connection 2 MISCOL Input Paper Misload Sensor Collector 3 MISLED Output Paper Misload Sensor LED Voltage 4 GND Output Ground for Sensor 5 NC No Connection 6 OUTCOL Input Paper Out Sensor Collector 7 OUTLED O...

Page 66: ...D Receive Data Input to Monitor 4 GND Signal Ground 5 GND Signal Ground 6 TXD Transmit Data Output from Monitor 7 CTS Clear to Send Input to Monitor 8 5V 200 mA Fused Table 5 6 RS 232 Connector 2 Pin Number Signal Name Signal Description 1 GND Signal Ground 2 RTS Request to Send Output from Monitor 3 RXD Receive Data Input to Monitor 4 GND Signal Ground 5 GND Signal Ground 6 TXD Transmit Data Outp...

Page 67: ...ber Signal Name Signal Description 1 SPKR LO Speaker Low Side Connection 2 SPKR HI Speaker High Side Connection Table 5 8 Remote Mark Connectors Remote Event Marker and Fetal Acoustic Stimulator Pin Number Signal Name Signal Description 1 Tip Remote Event Marker or Fetal Acoustic Stimulator 2 Shunt No Connection 3 NC No Connection 4 Sleeve Ground 1 2 3 4 ...

Page 68: ...tor s Pin Signal Name Signal Description 1 NC No Connection 2 NC No Connection 3 GND Chassis Ground 4 XMIT RCV SHIELD Shield for Transmit Receive 5 XMIT RCV Transmit Receive 6 NC No Connection 7 NC No Connection 8 NC No Connection 9 GND Chassis Ground 10 NC No Connection 11 U S ENABLE Enable for Ultrasound Channel 12 GND Chassis Ground 1 2 3 4 5 6 7 12 9 8 10 11 2 3 4 5 6 8 7 9 10 11 12 1 ...

Page 69: ...side Table 5 10 FECG Connector Model 173 Pin Signal Name Signal Description 1 NC No Connection 2 FECGEN Enable for FECG Channel 3 GND Chassis Ground 4 NC No Connection 5 NC No Connection 6 LA Left Arm 7 RA Right Arm 8 SHIELD Shield 9 NC No Connection 10 NC No Connection 11 NC No Connection 12 RL Right Leg 1 2 3 4 5 6 7 12 9 8 10 11 2 3 4 5 6 8 7 9 10 11 12 1 ...

Page 70: ...n Signal Name Signal Description 1 NC No Connection 2 FECGEN Enable for FECG Channel 3 ISOGND Isolated Ground 4 XMIT RCV SHIELD Shield for Transmit Receive isolated ground 5 XMIT RCV Transmit Receive isolated ground 6 LA Left Arm 7 RA Right Arm 8 SHIELD Shield isolated ground 9 NC No Connection 10 NC No Connection 11 U S ENABLE Enable for Ultrasound Channel 12 RL Right Leg 2 3 4 5 6 8 7 9 10 11 12...

Page 71: ...URE Positive Input to Pressure Amplifier 2 PRESSURE Negative Input to Pressure Amplifier 3 NC No Connection 4 4 VOLT EXCITATION 4 Volt Reference 5 NC No Connection 6 GND EXCITATION REF 4 Volt Reference Ground 7 UA SHIELD Shield 8 NC No Connection 9 NC No Connection 10 NC No Connection 11 NC 171 172 IUP ENABLE 173 174 No Connection 171 172 Mode Enable for IUP 173 174 12 TOCO ENABLE Mode Enable for ...

Page 72: ...ow 3 NC 171 172 TECGEN 173 Input No Connection 171 172 Telemetry FECG Enable 173 174 4 NC No Connection 5 NC 171 172 TECG 173 Input No Connection 171 172 Telemetry FECG 173 174 6 TTOCO Input Telemetry TOCO 7 AGND Output Analog Ground 8 TELMAUDIO Input Telemetry US Audio 9 DGND Output Digital Ground 10 NC No Connection 11 TTOCOEN Input Telemetry TOCO Enable 12 TUSEN Input Telemetry US Enable 13 NC ...

Page 73: ...Board Data Bit 7 4 DISPLCS Output Not Used 5 A0 Output Telemetry ECG 173 174 6 D4 Output Main Board Data Bit 4 7 D1 Output Main Board Data Bit 1 8 D0 Output Main Board Data Bit 0 9 D2 Output Main Board Data Bit 2 10 D3 Output Main Board Data Bit 3 11 SEGA Output Segment A for Pressure 1 LED 12 SEGB Output Segment B for Pressure 1 LED 13 SEGC Output Segment C for Pressure 1 LED 14 SEGD Output Segme...

Page 74: ...n Switch Input 4 NC Output No Connection 5 MARK Input Mark Switch Input 7 PADV Input Paper Advance Switch Input 6 GND Output Ground 8 RECANODE Output Recorder on LED Anode 9 VOLDN Input Volume Down Channel 1 Switch Input 10 CANCEL Input Alarm Cancel Switch Input 11 VOLUP Input Volume Up Channel 1 Switch Input 12 VOLDN2 Input Volume Down Channel 2 Switch Input 13 PWRSWITCH Input Power Switch Input ...

Page 75: ...V Ground 3 5V Output 5 V Supply 4 7 5V Output 7 5 V Supply 5 2 5VREF Output 2 5 V Reference 6 IUPEN Input IUP Enable Output 7 3 3VANA Output 3 3 V for Analog 8 144KC Output 144 KHz for Isolated Power Supply 9 3 3VANA Output 3 3 V for Analog 10 AGND Output Analog Ground 11 FECGOUT Input FECG Analog Output 12 PRESSOUT Input Pressure Analog Output 13 FECGEN Input FECG Enable Active Low 14 NC 171 172 ...

Page 76: ...Arm Input from Patient Connector 2 LA Output Left Arm Input from Patient Connector 3 RL Input Right Leg Drive Signal from FECG IUP Board 4 SHIELDF Output Isolated Shield 5 PRESS Output UA Channel Negative Input 6 PRESS Output UA Channel Positive Input 7 ISO4V Input Isolated 4 V Reference 8 ECGEN Output Enable for FECG Cable 9 4VISOGND Input Isolated 4 V Reference Ground 10 PEN Output Isolated IUP ...

Page 77: ...m of the Main Board in the 170 Series Monitor The board number varies according to the particular model in the series as summarized in Table 5 18 Table 5 18 Main Board Variations 170 Series Model Main Board FRU Number Ultrasound Channels FECG IUP Board Mount Model 171 2000244 Single No Model 172 15269 Dual No Model 173 2000324 Single Yes Model 174 2000952 Dual Yes ...

Page 78: ...serial data link Processing Block System processor System flash memory System boot flash memory System RAM System address decoder PAL System battery RAM with real time clock System Power Supply Pre regulators 5 V regulators 3 3 V regulators 7 5 V regulators 173 174 24 V regulators 11 V regulators 173 174 Uterine Activity Module Pressure differential amplifier 4 V reference A D converter Ultrasound...

Page 79: ...diagram of the processing block Figure 5 11 Processing Circuitry Block Diagram SH3 Processor to peripheral devices System Boot Flash Memory 128k x 8 System SDRAM Memory 1M x 32 standard System Control Address Decoder PAL Address decoding Recorder control latch and head protection timer SPI chip select and clock control Recorder serial interface System Flash Memory 512k x 32 standard 512k x 32 opti...

Page 80: ...ory parts U23 U26 are used to provide 4 MB of data storage and non volatile program memory The flash parts are arranged in pairs to allow 32 bit data access Separate write enable lines allow access to individual 16 bit words if required Chip selects for each flash pair are controlled by the programmable array logic device PAL U4 and are memory mapped to make all 4 MB appear as a single area of mem...

Page 81: ...obes Head supply control Head protection System Flash ROM Decoder Bank 2 Recorder Control Latch Decoder Motor phase latches General Decoder and Latch SPI serial peripheral interface chip selects Front end telemetry control Battery RAM RTC Decoder Status Port Decoder Front panel buttons Recorder status Display Decoder UART Decoder Recorder Printhead Data Shift Register Processor Address Data and Co...

Page 82: ... The status switch input module consists of buffers U15 and U16 and series parallel elements for protection against ESD The monitor membrane switch panel provides 11 switch closures to ground which are fed to 100 kΩ pull up resistors and through 10 kΩ series elements Buffers U14 and U15 are further protected by capacitors to ground and diode clamp devices U17 and U22 Two LEDs are present on the me...

Page 83: ...es to RS 232 levels 7 V typically for transmission and 7 V RS 232 levels to 3 V levels for reception RJ 45 connectors J7 and J8 provide center connection compatibility to the 6 pin RJ 11 connectors found on the 120 Series Maternal Fetal Monitors The 170 Series uses the larger 8 pin connectors to provide fused power for future interfacing Each channel has shunt 1000 pF shunt capacitors for emission...

Page 84: ... switch input is a switch closure to ground and is read by the processor through buffer U15 The printhead interface consists of PAL U4 which contains the printhead control latch head protection circuitry and printhead shift register The printhead control latch contains the four strobes for the printhead sections the printhead load line and the printhead power supply enable line The printhead prote...

Page 85: ...ory of Operation Figure 5 16 Recorder Interface Block Diagram Motor Control Latch Status Read Buffer Printhead Control Latch Printhead Protection Circuitry Printhead Data Shift Register to Data Bus to Printhead strobes load line clock data Paper Status Lines to Motor from PAL Device ...

Page 86: ...ation Transformer Model 174 Monitors have an isolation transformer for US Channel 1 signals since the connector is shared with the FECG Channel Ultrasound Transducer When the reflected sound wave is received by the transducer crystals it is converted to an electrical signal After being amplified detected and filtered this signal is split into two paths ultrasound audio and ultrasound envelope The ...

Page 87: ...E Signals the Processor that the US Channel is Active 21 PIN1 Selects Channel 1 Transducer 22 PIN2 Selects Channel 2 Transducer 42 CH2 Selects CH2 Track and Hold Circuit 43 CH1 Selects CH1 Track and Hold Circuit AGC Transmitter Input Pin Diode Switching Pre Amplifier Demodulator Demultiplexor Envelope Detector CH2 Main Filter CH2 Main Filter CH1 Telemetry Switch Telemetry Switch Fetal Movement Det...

Page 88: ...stable low noise power supplies for the ultrasound receiver and transmitter Transistor Q11 inductor L1 and capacitor C208 form the ultrasound transmitter Q11 is driven by the signal TRANS_BURST Inductor L2 and capacitors C209 C210 and CV1 provide tuning for the transmitter output The transmitter has a nominal output impedance of 30 Ω and can typically drive 4 V peak to peak into a 20 Ω load Transi...

Page 89: ...e averaged to produce the desired output In summary this method improves the signal to noise ratio of the system Since the DET signal is driven at the same frequency as the transmitted signal any return signal of the same frequency will be averaged and produce either 0 V or a dc offset at the output of the demodulator this is not seen by the main filter driven by the demodulator since it is AC cou...

Page 90: ...ers are input to U10 through capacitors C44 and C45 The input impedance of these inputs is 10 kΩ thus producing a high pass filter at 72 Hz A tone is also one of the inputs to U10 through a high pass filter at 15 Hz and a gain reduction of 21 dB The components comprising the filter are C47 and R223 U10 is a quad digital potentiometer with 255 step producing a gain range from 0 to 48 dB It is contr...

Page 91: ... Each of these AGC circuit has a maximum gain of 200 with a dynamic range of 46 dB Each of the AGC outputs are high pass filtered by C169 R343 at 90 Hz with a gain of one then input to a half wave detector U36 pin 7 with a gain of 1 47 The output of the detector circuits are low pass filtered by U36 pin 1 at 20 Hz at gain of ten These envelopes are then input to the analog to digital converter U38...

Page 92: ...R318 and R320 Integrated circuit U42 and its associated components comprise a charge pump that converts the 3 3 V to 3 3 V U38 pin 11 and U34 pin 1 comprise a 2 5 V reference voltage U71 pin 7 provides a reference voltage which is half the 2 5 V reference called VREF 2 Integrated circuit U56 pin 7 and associated components provides the 4 V required for the tocotransducer Figure 5 19 provides a blo...

Page 93: ...f 5 8 V This is used as the pre regulator for linear regulators U65 U66 U68 and U69 U65 provides the system 5 V U66 provides the 5 V for the recorder motor U67 provides the 5 V for the audio amplifier U68 provides 3 3 V for the analog circuitry U69 provides the 3 3 V for the digital circuitry U61 and its associated components comprise a linear regulator with an output voltage of 7 5 V This is used...

Page 94: ...ogic 3 3 V Linear Regulator for Digital Logic 3 3 V Linear Regulator for Analog Circuitry Power Status Comparator Switching Pre Regulator 7 5 V Linear Pre Regulator 12 V Input Low Power 3 3 V Regulator Power Switch Flip Flop Switching Regulator for Recorder 24 V Shutdown digital control Sync input from ultrasound timing 6 V for Ultrasound 6 V for Ultrasound 5 V for Ultrasound Switching Regulator S...

Page 95: ...ace J16 and J15 provide the interface to the FECG IUP Board J15 is patient isolated Figure 5 21 FECG IUP Board Interface Block Diagram FECG IUP Board FECG Connector Telemetry Connector Telemetry Switch to Data Bus Pressure Connector 12 Bit A D Converter IUP RA LA RL PRESS 4V REF Telemetry FECG In FECG Telemetry FECG Out ...

Page 96: ...4 provide a regulated negative voltage 10 V for Model 173 9 3 V for Model 174 Integrated circuit U1 is a positive precision 2 5 volt reference The output of U1 is input to the non inverting input of amplifier U2 pin 3 The output of this amplifier U2 pin 1 drives the emitter follower Q1 The gain of the amplifier emitter follower is 1 6 and is set by resistors R3 and R4 The output of Q1 emitter is 4...

Page 97: ...s a quiesent current of 75 µA through R20 This current is produced by U6 pin 7 driving the LED that illuminates the photodiode at U10 pins 3 and 4 which is the feedback path The LED also illuminates the photodiode at U10 pins 5 and 6 which are on the non isolated side The current transfer ratio of this photodiode with respect to the photodiode on U10 pins 3 and 4 is 0 85 to 1 05 The tocotransducer...

Page 98: ...n 5 with a division of 10 11 formed by resistors R67 and R68 The operation of this amplifier is best understood if analyzed from its quiesent condition of no input signal Under this condition U8 pin 5 is at zero volts therefore U8 pin 6 must also be at zero volts This forces a quiesent current of 75 µA through R69 This current is produced by U8 pin 7 driving the LED that illuminates the photodiode...

Page 99: ...ducer cable is attached This causes approximately 4 5 mA to flow in the LED of opto coupler U17 The current transfer function of the coupler is 19 typically which causes 860 µA to flow in the photo transistor of U17in turn causing R105 to be pulled to ground on the non floating side of the barrier It is then sensed by the system microprocessor For a Model 174 only the ultrasound enable ties resist...

Page 100: ...P US1 174 only and TOCO 4 V Reference IUP Detection Circuitry Isolated Power Supply Filtering and Gain Stages Gain and Offset Adjustments Filtering Stages RA LA RL PRESS PRESS 4 V FECGEN IUPEN TOCOEN Isolated Supplies Optical Isolation Optical Isolation To TOCO Enable 12 V 173 11 6 V 174 FECGEN IUPEN TOCOEN To Main Board Front End FECG IUP Connector To Main Board A D Converter for Processing Isola...

Page 101: ...d Power Supply Model 174 only 2 GND Output Digital Ground 3 5V Output 5 V Supply 4 7 5V Output 7 5 V Supply 5 2 5VREF Output 2 5 V Reference 6 IUPEN Input IUP Enable Output 7 3 3VANA Output 3 3 V for Analog 8 144KC Output 144 KHz for Isolated Power Supply 9 3 3VANA Output 3 3 V for Analog 10 AGND Output Analog Ground 11 FECGOUT Input FECG Analog Output 12 PRESSOUT Input Pressure Analog Output 13 F...

Page 102: ...m Patient Connector 2 LA Output Left Arm Input from Patient Connector 3 RL Input Right Leg Drive Signal from FECG Board 4 SHIELDF Output Isolated Shield 5 PRESS Output UA Channel Negative Input 6 PRESS Output UA Channel Positive Input 7 ISO4V Input Isolated 4 V Reference 8 ECGEN Output Enable for FECG Cable 9 4VISOGND Input Isolated 4 V Reference Ground 10 PEN Output Isolated IUP Enable 11 USEN 17...

Page 103: ...rimping the lead wires or patient cables can cause damage which may affect the overall system performance This chapter contains the following Equipment Required 6 2 General 6 3 Monitor Self Test 6 4 Front Panel Pushbutton Test 6 5 Connecting the Simulator 6 6 FECG Test 6 7 Legplate Inspection 6 12 Ultrasound Test 6 13 Fetal Movement Detection Test 6 16 Ultrasound Transducer Test 6 18 Uterine Activ...

Page 104: ...itor Interconnect Cable 14212A B Tocotransducer Nautilus Tocotransducer 2264GAX 2264MAX Series Strain Gauge Transducer Reusable Strain Gauge with holder 4007BAX or Reusable Strain Gauge without holder 4007LAX or Disposable Strain Gauge 4009AAX NOTE These items are no longer sold by GE However transducers in the field are compatible with the 170 Series Monitor Pattern Memory Model 325 Simulator 142...

Page 105: ...ent when monitor performance needs to be verified on a semi annual basis or more frequently as dictated by your equipment maintenance and management policies NOTE Read each step of this procedure thoroughly before actually performing the test Visually inspect the monitor patient cables and other accessories for cracks fissures or other signs of wear or damage Do not use any monitor or accessory wh...

Page 106: ...itor contains test routines which verify the unit s calibration and internal circuitry These routines are initiated by each time the monitor is turned on The test results are printed on the strip chart recorder paper verifying the integrity of the unit This information is covered in detail in Monitor Self Test Routines on page 4 8 ...

Page 107: ...nual The recorder prints the messages CARDIO INOP and UA INOP indicating that no ultrasound or uterine activity transducers are plugged into the front panel US US2 or UA connectors The recorder prints the message 1 CM MIN indicating the selected chart speed 6 Press the monitor s front panel Paper Advance pushbutton and verify that the recorder paper advances at a rate of 36 cm min 7 Press the Pape...

Page 108: ...Simulator s power cord to the power receptacle on the rear panel of the simulator plug the other end of the power cord into a properly grounded wall outlet of appropriate voltage 3 Ensure the 170 Series Monitor is turned off 4 Connect the simulator interconnect cable s 50 pin end to the simulator s Fetal Monitor connector 5 Connect the sub cables of the other end of the simulator interconnect cabl...

Page 109: ...flashes at a rate of 30 times per minute The ECG beep volume of the rear panel speaker can be increased or decreased using the Volume buttons Set the volume to the desired level The recorder prints a continuous line at 30 BPM on the top grid of the strip chart paper The recorder prints the message FECG on the center margin of the strip chart paper after approximately 20 seconds 5 Turn the simulato...

Page 110: ...erify the following on the monitor The FHR1 value oscillates by 15 BPM The FHR1 heartbeat indicator flashes for each input signal The ECG beep is heard from the rear panel speaker The FHR trend oscillates 15 BPM between 115 and 130 BPM on the top grid of the strip chart paper See Figure 6 2 11 Repeat step 10 for rate values of 22 and 27 The results should be the same except that the FHR1 value osc...

Page 111: ...d 130 BPM on the strip chart paper 15 Set the simulator s ECG Rate switch to the 27 position Verify the following on the monitor The FHR1 value oscillates by 27 BPM The FHR1 heartbeat indicator flashes for each input signal The ECG beep is heard from the rear panel speaker The trend does not indicate any oscillation 16 Access the Service Setup Mode and disable ECG Artifact Elimination 17 Set the s...

Page 112: ...6 10 170 Series Monitor Revision C 2000947 004 Functional Checkout Procedure FECG Test Figure 6 1 FECG Ramp ...

Page 113: ...Revision C 170 Series Monitor 6 11 2000947 004 Functional Checkout Procedure FECG Test Figure 6 2 FECG Artifact Elimination ...

Page 114: ...plate Inspection Legplate Inspection Inspect the legplate as follows 1 Check for a proper seal around the ground plate 2 Ensure that no contaminants are present on either the ground plate or the push posts 3 Visibly assess the condition of the cable strain relief and connector pins ...

Page 115: ... the strip chart paper The recorder prints the message US on the center margin of the strip chart paper after approximately 20 seconds 5 Use the simulator s Manual Adjustment knob to increase the heart rate value by less than 13 BPM from the 120 BPM baseline Verify the following on the monitor The FHR1 value immediately reflects this new input rate The strip chart recorder immediately reflects thi...

Page 116: ...l speaker The recorder prints a continuous line at the respective value 3 BPM on the top grid of the strip chart paper 8 Repeat step 4 through step 7 using the second ultrasound channel 9 Place the simulator s US Mode switch in the OFF position Verify the following on the monitor The FHR1 value is blank The recorder stops printing the fetal heart rate trace The recorder prints the message CARDIO I...

Page 117: ...Revision C 170 Series Monitor 6 15 2000947 004 Functional Checkout Procedure Ultrasound Test Figure 6 3 Ultrasound Ramp ...

Page 118: ...nt knob to input an ultrasound signal of approximately 120 BPM Verify the following on the monitor The FHR1 value is 120 BPM The FHR1 heartbeat indicator flashes at a rate of 120 times per minute Ultrasound audio volume from the rear panel speaker can be increased or decreased using the left pair of Volume pushbuttons Set the volume to the desired level The recorder prints a continuous line at 120...

Page 119: ...Revision C 170 Series Monitor 6 17 2000947 004 Functional Checkout Procedure Fetal Movement Detection Test Figure 6 4 Fetal Movement Detection ...

Page 120: ...he monitor s rear panel speaker 5 Disconnect the ultrasound transducer from the front panel of the monitor Verify the following on the monitor The FHR1 value and heartbeat indicator are both blank The recorder stops printing the fetal heart rate trace The recorder prints the message CARDIO INOP on the center margin of the strip chart paper after approximately 20 seconds ABOUT LATCHING ALARMS The f...

Page 121: ...A REF on the strip chart paper 7 Press and hold the UA Reference button on the monitor to cycle through the available selections for UA reference 5 10 15 20 or 25 relative units Test each of these reference settings Verify that the UA value is displayed accordingly and that the recorder prints a continuous line at the corresponding value on the uterine activity channel of the strip chart paper 8 P...

Page 122: ...e activity sub cable from the UA input receptacle on the front panel of the monitor Verify the following on the monitor The UA value is blank The recorder stops printing the uterine activity trace The recorder prints the message UA INOP on the center margin of the strip chart paper after approximately 20 seconds Figure 6 5 Uterine Activity Ramp ...

Page 123: ...he following If the monitor is on when you connect or re connect a Trimline Tocotransducer to the UA connector you must wait at least 10 seconds before pressing the UA Reference button If the monitor is off you must wait at least 10 seconds from the time the monitor is powered on 6 Momentarily press the monitor s UA Reference pushbutton Verify the following The UA value shows the default setting T...

Page 124: ...F SCALE prints on the strip chart paper After approximately 20 seconds the message IUP prints on the center margin of the strip chart paper 3 Select the monitor s UA Reference button and verify the following on the monitor The UA value is 0 mmHg The UA trend is a continuous line at 0 mmHg on the strip chart paper The message UA REF prints on the strip chart paper 4 Apply gentle pressure on the str...

Page 125: ... dual heart rate can be verified using the pattern memory an additional procedure is given in this functional checkout procedure To check any of the mode combinations listed above 1 Connect the appropriate simulator sub cables to the corresponding receptacles on the monitor 2 Enable the modes on the simulator 3 Set the simulator s Pattern Memory switch to the ON position 4 If not already on press ...

Page 126: ...onitor s Record button 5 Verify the following on the monitor The FHR1 value reads 120 BPM The FHR1 heartbeat indicator flashes at a rate of 120 times per minute The FHR2 value varies between approximately 50 and 210 BPM The FHR2 heartbeat indicator flashes at a rate consistent with the value The messages FECG and US print on the center margin of the strip chart paper The FHR1 trend is a continuous...

Page 127: ... Procedure Dual Heart Rate Test Non Pattern Table 6 6 Model 325 Simulator Settings for FECG US Test Section Switch Setting FECG MECG Main RATE Rate 120 BPM Mode FECG QRS Amplitude 50 µV QRS Polarity ULTRASOUND FMD Mode US Level MED Rate RAMP General Pattern Memory OFF ...

Page 128: ...6 26 170 Series Monitor Revision C 2000947 004 Functional Checkout Procedure Dual Heart Rate Test Non Pattern Figure 6 6 Dual Heart Rate FECG and US ...

Page 129: ...e FHR1 value shows three steady dashes The FHR2 value shows three steady dashes The recorder prints the messages US and US2 on the center margin of the strip chart paper 3 Use your finger to rub the face of the ultrasound transducer connected to the monitor s US input receptacle try to maintain a steady rate and verify the following on the monitor The FHR1 value responds to the rubbing The FHR1 he...

Page 130: ...of the strip chart paper 10 Turn off the monitor s recorder 11 Set the switches on the Model 325 Input Simulator according to Table 6 7 12 Using the simulator s Manual Adjustment knob input an US signal of 179 BPM as indicated on the monitor Verify that there is no alarm tone sounding from the monitor s speaker 13 Using the simulator s Manual Adjustment knob increase the US rate to 180 BPM Again v...

Page 131: ...erify that there is no alarm tone sounding from the monitor s speaker 21 Using the simulator s Manual Adjustment knob decrease the US rate to 100 BPM Again verify that there is no alarm tone sounding from the monitor s speaker 22 Using the simulator s Manual Adjustment knob decrease the US rate to 99 bpm After 30 seconds verify the following on the monitor The alarm tone is emitted from the monito...

Page 132: ...ignal to 100 bpm Verify the following on the monitor The alarm tone continues sounding The Alarm indicator stops continues flashing The affected heart rate numerics continue flashing 27 Press the monitor s front panel Alarm Silence pushbutton Verify that the visual and audio alarm indications disappear 28 This concludes the functional checkout procedure ...

Page 133: ...ould attempt servicing a 170 Series Monitor This chapter contains the following information General Anti Static Handling Precautions 7 2 Transducer Plug Replacement Kits 7 3 Nautilus Transducer Cable Replacement 7 15 Removing the Monitor Top Cover 7 19 Tocotransducer Calibration 7 20 Nautilus Ultrasound Transducer Top Cover Replacement 7 30 Nautilus Transducer Reassembly 7 32 Testing a Repaired Tr...

Page 134: ...dling circuit boards or assemblies containing circuit boards Following these procedures helps resist damage that can be caused by static electricity Discharge any static charge you may have built up before handling parts Wear a grounded anti static wristband at all times Use a static free work surface Store items in anti static bags or boxes Do not remove items from anti static containers until ne...

Page 135: ... Ultrasound Transducer Cable Standard 5700 Series Nautilus 5700 Series 8675A FECG Cable Legplate 6158F Table 7 2 Packing List Item Quantity Contact Pin male 24 AWG 16 5 mm 11 Contact Pin male 24 AWG 18 mm 1 Gripper of appropriate size 3 5 mm for smaller cables TOCO 5 7 mm for larger cables US FECG 1 Plastic Ring 21 8 x 4 mm 1 Retaining Ring 1 Strain Relief Clamp 3 7 mm 1 Screw for above clamp M 2 ...

Page 136: ...ping the gripper Equipment Required You will need the following equipment Green1 Stranded Wire approximately 6 inches 24 AWG for tocotransducers and ultrasound transducers 26 AWG for FECG cable legplates 26 AWG Blue Stranded Wire approximately 4 inches for FECG Cable Wire Cutter Stripper Soldering Iron and Solder Shrink Tubing Oetiker Pincers for Nautilus Tocotransducers only 2 1 The color green i...

Page 137: ...o jacket 6 For Nautilus Tocotransducers only Cut vent tubing flush with jacket being careful not to restrict air flow The vent tubing is not present in Trimline cables 7 Pull back the braided shield and twist into pigtail 8 Solder the 2 inch prepared green wire to the shield wrapping the 3 4 inch strip on to the shield Cut wire flush with other conductors of the cable 9 Install shrink tubing over ...

Page 138: ...en Wire 1 8 Oetiker Clamp Nautilus only Vent Tube Nautilus only Shrink Tubing Shield Table 7 3 Tocotransducer Cable Wiring Pin Number Pin Length Description Wire Color 1 short PRESS Red 2 short PRESS White 3 short 4 short 4 V Blue 5 short 6 short Reference Enable 24 AWG Green Jumper and Yellow 7 LONG Shield Ground 24 AWG Green 8 short 9 short 10 short 11 short 12 short TOCO Enable 24 AWG Green Jum...

Page 139: ... shield 7 This step varies according to the ultrasound transducer type Standard Ultrasound Transducer This cable is a dual coaxial cable Cut off black coaxial cable and fillers flush to jacket Nautilus Ultrasound Transducer This cable is a single coaxial cable Trim fillers flush to jacket 8 Score around the white jacket leaving 3 16 inch of the jacket remaining 9 Pull back the inner shield and twi...

Page 140: ...is a dual coaxial cable For Nautilus ultrasound transducers the cable is a single coaxial cable If present cut black coax and fillers flush with grey jacket Solder 24 AWG green wire to outer shield Score around white jacket leaving 3 16 inch Separate inner braided shield and twist Solder 24 AWG green wire to inner shield Apply shrink tubing over clear wire and solder joint of inner shield Strip co...

Page 141: ... Ultrasound Cable Wiring Pin Number Pin Length Description Wire Color 1 short 2 short 3 short Overall Shield 24 AWG Green 4 LONG US Transmit Receive Shield 24 AWG Green 5 short White Coax 6 short 7 short 8 short 9 short 10 short 11 short US Enable 24 AWG Green Jumper 12 short US Enable Ground 24 AWG Green Jumper ...

Page 142: ...ng back to the outer jacket 7 Solder the 2 inch prepared green wire to the shield wrapping the 3 4 inch strip onto the shield Cut the wire flush with other conductors of cable 8 Install shrink tubing over the solder joint of the shield 9 Strip all conductors 1 8 inch Twist and tin conductors CAUTIONS CABLE IDENTIFICATION Identify each cable as it is stripped since colors will be difficult to deter...

Page 143: ...ries Monitor 7 11 2000947 004 Serviceable Assemblies Transducer Plug Replacement Kits Figure 7 3 FECG Cable Preparation 1 1 8 1 1 2 1 blue 26 AWG Blue Jumper Wire 26 AWG Green Wire 1 8 Shrink Tubing Shrink Tubing Shield ...

Page 144: ...ECG Cable Wiring Pin Number Pin Length Description Wire Color 1 short 2 short ECG Enable Blue and 26 AWG Blue Jumper 3 LONG Ground 26 AWG Blue Jumper 4 short 5 short 6 short LA red terminal White Black 7 short RA green terminal White 8 short Shield 26 AWG Green 9 short 10 short 11 short 12 short RL plate White Red ...

Page 145: ...truction 1 Remove the old plug 2 Follow cable preparation procedures earlier in this document Tocotransducer Cable Preparation Ultrasound Transducer Cable Preparation or FECG Cable Preparation 3 Insert pinned wires into corresponding positions in the pin housing according to the wiring table in each of the above listed sections Push in each pin until it bottoms out and is retained by the pin sprin...

Page 146: ... should face inward 7 Place the half shell with tongue on the pin housing aligning it with the two dots on the back of the housing The half shells should snap together evenly Slip the retaining ring over them to hold the assembly together 8 Slide the gripper back up the cable and align the two projections at the rear of the plug assembly with the two recesses at the rear of the gripper NOTE Do not...

Page 147: ...are available in 5 8 and 10 foot cable lengths However the cable assembly included in a replacement kit is available in an 8 foot length only Table 7 6 Kit Summary Nautilus Transducer Type and Cat No REF Cable Kit Cat No REF Loop Style Ultrasound Transducer 5700 KAX LAX MAX 2003659 001 Button Style Ultrasound Transducer 5700 GAX HAX JAX 2003660 001 Loop Style Tocotransducer 2264 DAX EAX FAX KAX LA...

Page 148: ...ive 454 recommended Anti Static Wristband Static Free Work Surface Reference Figures Refer to Figure 7 5 and Figure 7 6 while using the cable replacement kit Figure 7 5 Sealing Screw Caps Figure 7 6 Nautilus Transducers Cover Removed Flat Screw Cap Button Style Loop Style Tocotransducer 2264 AAX BAX CAX DAX EAX FAX Cable Nut Set Screw Tocotransducer 2264 GAX HAX JAX KAX LAX MAX Self Tapping Screws...

Page 149: ...ide of the board 2264 GAX HAX JAX KAX LAX MAX only remove the three self tapping screws from the board to gain access Set aside screws b Observe the orientation of the cable connector in the PC board header then unplug Ultrasound Transducer a Unscrew the green cable ground wire from the PC board Set aside screw b Unsolder the green and clear cable wires from the PC board 6 Loosen the cable nut set...

Page 150: ...nsitive button Doing so will change the button height and affect the tocotransducer calibration a Plug the cable connector into the PC board header conforming to the keying observed earlier b If removed earlier replace the PC board and tighten the three self tapping screws in the transducer base CAUTION OVERTIGHTENING Do not overtighten the screws Doing so could damage the threads in base Ultrasou...

Page 151: ...ON TOP COVER The top cover remains tethered to the main board via the display board and membrane switch panel cables Do not attempt to remove the monitor cover without first disconnecting these cables 3 Partially lift the top cover and slide it partways back to reveal the cables connecting to the main board 4 Disconnect the display board cable from J18 on the main board 5 Disconnect the membrane s...

Page 152: ...can be used with the 170 Series Monitor Corometrics Nautilus Tocotransducer Corometrics Trimline Tocotransducer Corometrics Large Button Tocotransducer Figure 7 7 CMR Test Jack Table 7 8 CMR Test Jack Components Part Description Catalog Number Pressure Connector 6158J 475 Ω 1 8 W 1 Resistor 472127 P P 4 V REF Pin 1 Pin 2 Pin 4 Pin 6 475 W Front Panel UA Connector ...

Page 153: ...entative immediately The text of the instruction sheet is repeated here for informational purposes Table 7 9 Kit Summary Nautilus Transducer Type and Cat No REF Cable Kit Cat No REF Loop Style Tocotransducer 2264 DAX EAX FAX KAX LAX MAX 2003663 001 Button Style Tocotransducer 2264 AAX BAX CAX GAX HAX JAX 2003664 001 Table 7 10 Packing List Item Qty Transducer Case Top 1 Flat Seal O Ring 1 Sealing ...

Page 154: ...ads Common Mode Rejection CMR Test Jack Figure 7 7 and Table 7 8 Potentiometer Adjustment Tool 52 5 gram Weight cat no 2003005 001 Torque Seal Loctite Adhesive 454 recommended Anti Static Wristband Static Free Work Surface Calibrated 170 Series Monitor Disassembly CAUTION HANDLING Take care not to damage the transducer base sealing groove 1 Turn off the monitor 2 Unplug the transducer from the mon...

Page 155: ...n is face up then center the 52 5 gram weight on the pressure sensitive button 8 Adjust the Offset R6 potentiometer so that the voltage matches the reading recorded in step 5 0 04 V This voltage is referred to as the weight on voltage 9 Remove the weight and observe the voltage reading this voltage is referred to as the weight off voltage A correctly adjusted transducer will show a voltage change ...

Page 156: ...p then center the 52 5 gram weight on the pressure sensitive button 9 Adjust the Offset R5 and Offset Trim R6 potentiometers so that the voltage matches the reading recorded in step 6 0 04 V This voltage is referred to as the weight on voltage The Offset R5 potentiometer provides course adjustment The Offset Trim R6 potentiometer provides fine adjustment 10 Remove the weight and observe the voltag...

Page 157: ...ibrated 170 Series Monitor Screwdriver or potentiometer adjustment tool 52 5 gram weight cat no 13131AA Sealing tape cat no 11043AA Torque seal IMPORTANT WEIGHT TYPE The weight cat no 13131AA is designed specifically for testing Trimline tocotransducers The weight s bottom lip fits over the transducer s button Procedure During this procedure refer to Figure 7 8 for the location of potentiometers i...

Page 158: ...anel uterine activity connector 7 Measure the voltage at TP2 and record the value 8 Replace the CMR Test Jack with the tocotransducer to be calibrated 9 Place the tocotransducer on a flat surface so that the button is face up then center the 52 5 gram weight on the button 10 Adjust the ZERO CTR and or the ZERO TRIM potentiometer s so that the voltage measured across TP2 and TP9 matches the reading...

Page 159: ...ition Adjusting the GAIN potentiometer while monitoring the voltage at TP2 may show little or no voltage change as the potentiometer is being adjusted However when the weight is again placed on the button the output voltage for this condition may have changed significantly In summary it is necessary to adjust the GAIN potentiometer and then recheck the voltages during both the WEIGHT ON condition ...

Page 160: ...iver or potentiometer adjustment tool 52 5 gram weight cat no 7825AA Sealing tape cat no 7730AA Torque seal IMPORTANT WEIGHT TYPE The weight cat no 7825AA is designed specifically for testing large button tocotransducers Procedure During this procedure refer to Figure 7 9 for the location of potentiometers in the Trimline tocotransducer Figure 7 9 Large Button Tocotransducer Potentiometer Location...

Page 161: ... 6 0 005 V This voltage is referred to as the WEIGHT ON voltage NOTE If the ZERO TRIM potentiometer does not provide enough adjustment center the ZERO TRIM potentiometer and adjust the ZERO CENTER potentiometer to match the reading recorded in step 6 1 0 V then use the ZERO TRIM potentiometer to match step 6 0 005 mV 10 Remove the weight and observe the voltage reading this voltage is referred to ...

Page 162: ...t of the instruction sheet is repeated here for informational purposes Equipment Required You will need the following equipment Phillips Head Torque Driver Loctite Adhesive 454 recommended Anti Static Wristband Static Free Work Surface Table 7 11 Kit Summary Nautilus Ultrasound Transducer Type and Cat No REF Cable Kit Cat No REF Loop Style Ultrasound Transducer 5700 KAX LAX MAX 2011679 001 Button ...

Page 163: ...om the monitor 3 Use the screw cap extraction tool to pry off the five screw caps Refer to Figure 7 5 Discard all caps CAUTION HANDLING Take care not to damage the transducer base sealing groove 4 Remove the five sealing screws and discard 5 Remove the transducer cover and flat seal o ring Discard both items 6 Follow the instructions for Nautilus Transducer Reassembly on page 7 32 ...

Page 164: ...irection skipping every other screw Repeat until all screws are torqued to 48 in oz 3 Apply one drop of Loctite adhesive1 to the perimeter of the hole for the flat screw cap Figure 7 5 Insert flat screw cap and press into place 4 Apply one drop of Loctite adhesive1 to the perimeter of the hole for a curved screw cap Insert the curved screw cap being careful to align it according to the curvature o...

Page 165: ...170 Series Monitor 7 33 2000947 004 Serviceable Assemblies Nautilus Transducer Reassembly Figure 7 10 Curved Screw Cap Shape Nautilus Transducer Figure 7 11 Curved Screw Cap Alignment Nautilus Transducer burr burr ...

Page 166: ...Transducer TOCO or US Testing a Repaired Transducer TOCO or US CAUTIONS Following completion of the cable replacement procedure LEAKAGE TEST Perform a leakage and dielectric test on the transducer per applicable standards FUNCTIONAL TEST Perform a functional response test on the transducer ...

Page 167: ...from J3 on the main board 4 Disconnect the printhead cable from J1 on the main board 5 Disconnect the motor cable from J2 on the main board 6 Disconnect the speaker cable from J4 on the main board 7 Remove the nine mounting screws from the main board and carefully place the board on an anti static surface 8 For Models 173 174 you will need to transfer the FECG IUP Board to the new Main Board Remov...

Page 168: ...able Assemblies Replacing the FECG IUP Board Replacing the FECG IUP Board Follow the instructions for Replacing the Main Board on page 7 35 with the following exceptions Retain the existing Main Board Mount a new FECG IUP Board onto the existing Main Board ...

Page 169: ...d file Top cover Rear panel adhesive gasket Rear panel label Membrane switch panel Display overlay Refer to Table 7 13 for order numbers Table 7 13 Top Cover Assembly Order Numbers Item Model 171 Model 172 Model 173 Model 174 Top Cover 2004993 003a 2004993 001b 2004993 002c 2004993 004d Rear Panel Adhesive Gasket 14561AA Rear Panel Label 2003930 001 Membrane Switch Panel 15323BA 15323AA Display Ov...

Page 170: ...ew membrane switch panel peel off the adhesive backing and position on the new top cover making sure the shield tongue is threaded through the slot IMPORTANT SHIELD TONGUE If the shield tongue is caught between the top cover and the switch panel the panel cannot be properly positioned 9 Screw the shield tongue in place using the old screw 10 Replace the display board and secure all four screws 11 ...

Page 171: ... C 170 Series Monitor 7 39 2000947 004 Serviceable Assemblies Replacing the Membrane Switch Panel Figure 7 12 Top Cover Alignment Tabs Figure 7 13 Bottom Enclosure Alignment Slots alignment tabs alignment slots ...

Page 172: ...age 7 19 It is not necessary to disconnect the cables You only need access to the front panel connectors 3 Follow the instructions for Replacing the Main Board on page 7 35 There is no need to remove the FECG IUP Board 4 Remove the six screws from the front end connector shield 5 De solder the damaged connector and discard 6 Solder a new connector in place 7 Replace the connector shield main board...

Page 173: ...four screws two per side holding the printhead in place The printhead will drop out 6 Insert the new printhead aligning the edges near the ends flush with the support plate Secure with the four screws 7 Slowly close the drawer observing the roller and printhead Ensure that the roller is parallel to the printhead striking the printhead evenly as the drawer shuts 8 Replace the printhead cable 9 Veri...

Page 174: ...f the display board cable and the membrane switch panel cable from the main board 3 Disconnect the printhead cable from J1 on the main board 4 Locate resistor R562 and potentiometer R507 on the main board 5 Attach the leads of the digital voltmeter across R562 6 Re connect the AC adapter cord to the monitor and turn on the monitor 7 Measure the voltage across R562 and record the value 8 Turn off t...

Page 175: ...t Back Alignment 6 Press the Setup button to exit the service setup mode The monitor automatically turns to standby Front Back Alignment 1 Follow the instructions for Adjusting the Printhead Current on page 7 42 2 Print the recorder test pattern See Printing a Continuous Test Pattern above 3 Load paper and close the recorder drawer 4 Observe the printing quality under the following conditions Pres...

Page 176: ...7 44 170 Series Monitor Revision C 2000947 004 Serviceable Assemblies Servicing the Recorder Figure 7 14 Recorder Test Pattern ...

Page 177: ...aliper to measure this distance 3 Use the Volume buttons or to align the printhead left or right respectively A number between 0 and 255 shows in the FHR display The number increases or decreased as you make adjustments using the Volume buttons IMPORTANT ACCURACY A common mistake in the field is to adjust the printhead so that the first test pattern line prints at 0 mmHg on the paper rather than b...

Page 178: ...igning the motor gear with the roller gear Push the motor assembly slightly forward against the roller gear There should be a slight clearance between the teeth Check clearance by rotating the print roller back and forth There should be a slight rotation 8 Secure the motor mount to the main board mounting plate Tighten both screws 9 Replace and align the printhead by following the instructions on ...

Page 179: ...nting plate and slide back and out to remove 6 Remove the two screws holding the drawer microswitch in place 7 Snip the sensor board cable tie located on the monitor bottom panel 8 Pull the recorder drawer forward slightly 9 Snip the cable tie on the back of the recorder drawer 10 Pull drawer forward and lift out CAUTION LOOSE ROLLERS The drawer rollers are normally held in place by the drawer Tak...

Page 180: ...wer is closed 19 Replace the main board mounting plate pulling the plate forward parallel with the roller while tightening the screws 20 Return the printhead assembly to its original position as noted in step 4 21 Replace the main board re connect all cables and replace the monitor top cover 22 Check printing and re align the printhead as necessary See Aligning the Printhead on page 7 43 ...

Page 181: ...codes in the following table display during the boot process cycle power If the error codes reappear when you power up phone GE Technical Support for assistance Table 7 15 Boot ROM Error Codes Error Code Description E1 Configuration data incorrect for program target E2 Configuration data checksum error E3 Boot code CRC error ...

Page 182: ...7 50 170 Series Monitor Revision C 2000947 004 Serviceable Assemblies Boot ROM Error Codes For your notes ...

Page 183: ...8 1 2000947 004 Chapter 8 Peripheral Devices 8 The 170 Series Monitor allows connection to optional peripheral equipment This section discusses the following Remote Marks Connectors 8 2 Telemetry Connector 8 3 RS 232 Connectors 8 4 ...

Page 184: ...emote Event Marker A Corometrics Remote Event Marker is used to annotate the strip chart recorder paper with a mark The printed mark can be configured as commonly used to record an event or it can be configured as commonly used as an indication that the mother has perceived fetal movement The monitor is factory set with the mark configured as Refer to Customizing the Monitor on page 4 10 for more ...

Page 185: ...modes US US2 or TOCO are ignored You cannot mix and match telemetry and monitor modes The telemetry connected annotation is printed on the bottom line of the top grid of the strip chart paper upon commencement of telemetry monitoring and every 30 minutes along with the modes The telemetry disconnected annotation is printed on the strip chart paper if you unplug the telemetry receiver from the 170 ...

Page 186: ...Baud Rate Select a baud rate that is compatible with the external device The available settings 600 1200 2400 4800 9600 19 200 and 384 000 bps Mode Select a communications mode compatible with the external device HP or HP with Notes Select HP or HP w notes for connecting to a Marquette Quantitative Perinatal System or another central system that uses the Hewlett Packard communications protocol HP ...

Page 187: ...15 Update Select for backward compatibility so the 170 Series Monitor can operate in a Model 115 compatible communication mode This mode outputs all available information and ignores requests from a host computer system 115 Transmit Receive Select for backward compatibility so the 170 Series Monitor can operate in a Model 115 compatible communication mode This mode only outputs data requested from...

Page 188: ...r the appropriate port to 600 and ext BP respectively then exit the service setup mode 3 Be aware of the following information specific to Critikon monitors The clock on the Critikon Modes 1846 1846SX Monitors must be set to within 10 minutes of the 170 Series Monitor If the clocks are not within 10 minutes of each other the time will print with each blood pressure reading Due to the storage capab...

Page 189: ...notation capability enabled HP w notes mode or disabled HP mode The following is an example of a remote message sent to a 170 Series Monitor from a central information system using this serial communications protocol SPW AVERAGE VARIABILITY where SPW is an example of a physician s initials To connect a central information system 1 Refer to Table 8 2 for the appropriate interface cable Connect one ...

Page 190: ... The trend uses a 0 100 scale Refer to Figure 8 1 Figure 8 1 FSpO2 Data Example To connect the Model N 400 1 Using interface cable catalog number REF 1557AAO BAO connect one end to an available RS 232C port on the 170 Series Monitor connect the other end to the Serial Communications port on the pulse oximeter NOTE This cable can be used with both 120 2121is and 170 Series Monitors Although the 120...

Page 191: ...s center keyed to account for this The 170 uses RJ 45 connectors to provide for future interface features Table 8 2 External Device Summary External Device Parameter s 170 Series Baud Rate 170 Series Mode Interconnect Cable Cat No Critikon Model 1846 1846SX NBP 600 ext BP 1562AAO 1 foot 1562BAO 6 feet Quantitative Sentinel System Annotations optional 1200 HP or HP w notes 1558AAO 10 feet 1558BAO 2...

Page 192: ...from a host computer system When the Model 115 Fetal Monitor was released many customers developed their own interfaces for communicating with the monitor Setting the 170 Series Monitor to one of these communication modes allows these users to use their existing interfaces with the 170 Series Monitor as well The 170 Series Monitor emulates the Corometrics Model 830 Converter s implementation of th...

Page 193: ...is Uterine activity is transmitted eight times per second Modes are transmitted once per minute and whenever a mode change occurs Annotation messages are sent as they are entered from the Annotations window Event marks are transmitted each time the Mark button is selected Fetal movement data is transmitted four times per second Recorder status PAPER OUT information is transmitted once per second w...

Page 194: ...Requested Data Format on page 8 12 for information about the response data format The format is the same for both the 115 Update mode and the 115 Transmit Receive mode Requested Data Format The format of the data requested by the external computer from the monitor is shown in Figure 8 2 NOTE This applies to 115 Transmit Receive mode only The definitions of the bytes are as follows Monitor Type Thi...

Page 195: ... the actual data sent from the monitor to the external computer The contents of this field for each response is given below Event Mark This data field is empty whenever the monitor s Mark button is selected Heart Rate This data field contains two or three ASCII characters representing the value of the heart rate A value of 00 30H 30H indicates a penlift condition Heart rate data including penlift ...

Page 196: ...which can be purchased for the 170 Series Monitor Recorder Status This field contains one ASCII character representing the current status of the PAPER OUT signal low or high If the data byte is a 0 30H then the signal is low indicating paper is loaded and the recorder door is closed if the data byte is 1 31H then the signal is high indicating a paper out condition This data is transmitted once per...

Page 197: ...Transmit Receive Mode only Request errors are detected by the monitor as parity errors framing errors and invalid Monitor ID If the monitor fails to respond properly to a request it is suggested that the external computer re transmit a request sequence Figure 8 2 Data Request Format 115 Transmit Receive Mode Only Figure 8 3 Transmitted Data Format MONITOR TYPE FIRST DATA FIELD END OF TEXT DATA FIE...

Page 198: ...ectors Table 8 4 Heart Rate Modes HR1 Mode HR2 Mode ASCII Character Hexadecimal Value INOP INOP 0 30 FECG INOP 1 31 US INOP 2 32 US FECG 9 39 US US2 3B FECG US 3C INOP US2 3E Table 8 5 Uterine Activity Modes UA Mode ASCII Character Hexadecimal Value INOP 0 30 TOCO 1 31 IUP 2 32 ...

Page 199: ... Data RXD This input line provides the serial data sent from the external computer to the 170 Series Monitor Standard RS 232C Rules The following rules must be observed When a direct connection is made between a 170 Series Monitor and another Data Terminal Equipment DTE a standard null modem cable must be used When an indirect connection is made using a modem a 170 Series Monitor requires a normal...

Page 200: ... Receive Data Input to Monitor 4 GND Signal Ground 5 GND Signal Ground 6 TXD Transmit Data Output from Monitor 7 CTS Clear to Send Input to Monitor 8 5V 200 mA Fused Table 8 7 RS 232 Connector 2 Pin Number Signal Name Signal Description 1 GND Signal Ground 2 RTS Request to Send Output from Monitor 3 RXD Receive Data Input to Monitor 4 GND Signal Ground 5 GND Signal Ground 6 TXD Transmit Data Outpu...

Page 201: ...MONITOR SIDE DATA TERMINAL EQUIPMENT DTE SIDE 8 PIN SIGNAL NAME SIGNAL NAME 25 PIN 9 PIN 6 TXD TXD 2 3 3 RXD RXD 3 2 2 RTS RTS 4 7 7 CTS CTS 5 8 4 5 GND GND 7 5 GND 6 PIN 2 5 1 6 3 170 SERIES MONITOR SIDE DATA TERMINAL EQUIPMENT DTE SIDE 8 PIN SIGNAL NAME SIGNAL NAME 25 PIN 9 PIN 6 TXD TXD 2 3 3 RXD RXD 3 2 2 RTS RTS 4 7 7 CTS CTS 5 8 4 5 GND GND 7 5 GND 6 PIN 5 2 1 6 3 ...

Page 202: ...8 20 170 Series Monitor Revision C 2000947 004 For your notes ...

Page 203: ...eeds to be maintained on a regular basis This chapter describes general care and cleaning instructions for the 170 Series Monitor and its accessories If an accessory is not listed consult the manufacturer s instructions This chapter describes the following Cleaning 9 2 Preventative Maintenance Inspection 9 5 ...

Page 204: ... monitor Do not immerse accessories in any liquid Do not use abrasive cloth or cleaners on monitor or accessories Cleaning the Monitor Exterior To clean the exterior of the monitor including the displays and the membrane switch panel 1 Wipe any fluids from the surface of the monitor 2 Dampen a cloth or paper towel with isopropyl alcohol and gently rub soiled area until clean ...

Page 205: ... running water 1 Dampen a cloth or paper towel with one of the following products then wring out until only slightly wet Sodium Hypochlorite 5 25 Bleach diluted 10 1 Cidex Sporicidin Soap and water 2 Rub soiled area until clean taking care not to excessively wet the tocotransducer diaphragm seal or the contact surface of the ultrasound transducer 3 Use a cloth dampened with water on the contact su...

Page 206: ... AUTOCLAVE Do not autoclave pressure transducer IMMERSION Do not immerse any part of the electrical connector of the transducer in the cleaning solution at any time Examine the outer sheath of the cable for perforations If the outer covering is damaged in any way do not immerse the cable in the cleaning solution this may result in moisture entering the transducer case which is vented through the c...

Page 207: ... FECG Test Body for Model 173 or 174 only Shorted legplate with all three leads tied together IUP Test Body for Model 173 or 174 only SensorTip transducer wrapped in aluminum foil Anti Static Wristband Static Fee Work Surface 170 Series Operator s Manual Visual Inspection Inspect the following for excess wear and or signs of damage Power Supply Cord AC to DC Converter AC Line Cord Ultrasound Trans...

Page 208: ...e recorder printhead Refer to Cleaning the Printhead on page 7 46 Clean the monitor s accessories Refer to Cleaning the Tocotransducer Ultrasound Transducer and Legplate on page 9 3 Clean the monitor s interior using a hand held vacuum Calibration Adjust the printhead Refer to Aligning the Printhead on page 7 43 Calibrate the tocotransducer s Refer to Tocotransducer Calibration on page 7 20 ...

Page 209: ...e and results in a Maintenance Repair Log These instructions are intended for every component in the system WARNING MAINTENANCE SCHEDULE Failure to implement a satisfactory maintenance schedule may cause undue equipment failure and possible health hazards Unless you have an Equipment Maintenance Contract GE does not in any manner assume the responsibility for performing the recommended maintenance...

Page 210: ...t the line voltage at your facility 10 4 Record the primary leakage for the following conditions Table 9 1 Unit to Primary Leakage Conditions Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Open __________ Normal __________ Closed __________ Open __________ Reversed __________ Closed __________ Closed __________ Reversed __________ O...

Page 211: ...owing 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to ground leakage for the following conditions Table 9 2 Patient to Ground Leakage Conditions for US Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Open __________ Normal __________ Closed __________ Open __________ Reversed __________ Closed ___...

Page 212: ...ing the monitor s On Standby button 4 Verify the following 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to line leakage for the following conditions Table 9 3 Patient to Line Leakage Conditions for US Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Closed __________ Reversed __________ Open ______...

Page 213: ...lowing 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to ground leakage for the following conditions Table 9 4 Patient to Ground Leakage Conditions for US2 Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Open __________ Normal __________ Closed __________ Open __________ Reversed __________ Closed _...

Page 214: ...sing the monitor s On Standby button 4 Verify the following 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to line leakage for the following conditions Table 9 5 Patient to Line Leakage Conditions for US2 Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Closed __________ Reversed __________ Open ____...

Page 215: ...llowing 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to ground leakage for the following conditions Table 9 6 Patient to Ground Leakage Conditions for TOCO Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Open __________ Normal __________ Closed __________ Open __________ Reversed __________ Closed...

Page 216: ...using the monitor s On Standby button 4 Verify the following 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to line leakage for the following conditions Table 9 7 Patient to Line Leakage Conditions for TOCO Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Closed __________ Reversed __________ Open __...

Page 217: ...ng 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to ground leakage for the following conditions Table 9 8 Patient to Ground Leakage Conditions for IUP Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Open __________ Normal __________ Closed __________ Open __________ Reversed __________ Closed _____...

Page 218: ... the monitor s On Standby button 4 Verify the following 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to line leakage for the following conditions Table 9 9 Patient to Line Leakage Conditions for IUP Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Closed __________ Reversed __________ Open ________...

Page 219: ...ing 50 µA 132 253 VAC or at the line voltage at your facility 10 5 Record the patient to ground leakage for the following conditions Table 9 10 Patient to Ground Leakage Conditions for FECG Neutral Ground Power Polarity __________ Closed __________ Closed __________ Normal __________ Closed __________ Open __________ Normal __________ Closed __________ Open __________ Reversed __________ Closed __...

Page 220: ...tient to line leakage for the following conditions Enclosure Leakage 1 Wrap the entire monitor enclosure in aluminum foil 2 Configure a leakage tester to perform an enclosure leakage test 3 Turn ON the monitor using the monitor s On Standby button 4 Verify the following Normal 0 1 mA pass fail Single Fault 0 5 mA pass fail Table 9 11 Patient to Line Leakage Conditions for FECG Neutral Ground Power...

Page 221: ...s US Attach an US test body to the monitor s front panel US input Connect from the foil to line pass fail US2 Attach an US test body to the monitor s front panel US2 input Connect from the foil to line pass fail TOCO Attach a tocotransducer test body to the monitor s UA input Connect from foil to line pass fail IUP Attach an IUP test body to the monitor s front panel UA input Connect from foil to ...

Page 222: ...e test body foil to the enclosure foil pass fail US2 Attach an US test body to the monitor s front panel US2 input Connect from the test body foil to the enclosure foil pass fail TOCO Attach a tocotransducer test body to the monitor s UA input Connect from the test body foil to the enclosure foil pass fail IUP Attach an IUP test body to the monitor s front panel UA input Connect from the test body...

Page 223: ... line to enclosure foil pass fail Conductive Parts Isolated from Live Parts and Enclosure Using DC Voltage for One Minute NOTE The hi pot tester voltage is 2 83 kVdc for these tests IMPORTANT ENCLOSURE Wrap the entire monitor enclosure in aluminum foil avoiding the rear panel connector area for these tests Telemetry Connector Connect from the telemetry connector metal shell to enclosure foil pass ...

Page 224: ...9 22 170 Series Monitor Revision C 2000947 004 For your notes ...

Page 225: ...4 Chapter 10 Specifications 10 This section contains a detailed list of the technical specifications for the 170 Series Monitor This chapter lists specifications for the following General Monitor 10 2 Operating Modes 10 3 Strip Chart Recorder 10 4 ...

Page 226: ...hart Papera Ambient Temperature Relative Humidity a Paper operating environmental conditions are for a period of less than one month Paper storage environmental conditions are for extended storage Operating Storage 50 F to 104 F 10 C to 40 C 14 F to 131 F 10 C to 55 C 10 to 75 non condensing 10 to 90 non condensing 50 F to 104 F 10 C to 40 C 80 F 26 5 C 30 to 70 non condensing 45 to 65 non condens...

Page 227: ...B at mains frequency 10 µV peak to peak 10 MΩ 20 MΩ 40 dB 60 µA at 254 VAC electrically isolated 4 kVAC Ultrasound Mode Technique Transducer Type Pulse Repetition Frequency Pulse Duration Transmitter Frequency Spatial Average Temporal Average Intensity Focal 20 dB Beam Area Peak Instantaneous Intensity Peak Negative Acoustic Pressure Heart Rate Counting Range Leakage Current Pulsed Doppler with au...

Page 228: ...cal Specifications Heart Rate Scale Chart Width Scaling Range Resolution Domestic International 7 cm 8 cm 30 BPM cm 20 BPM cm 30 240 BPM 50 210 BPM 1 BPM 1 BPM Uterine Activity Scale Chart Width Scaling Range Resolution Strain Gauge Tocotransducer 4 cm 4 cm 25 mmHg cm 25 relative units cm 0 100 mmHg 0 100 relative units 1 mmHg 1 relative unit Recorder Drive Speeds Speed Accuracy 1 2 and 3 cm min 1...

Page 229: ...le to provide the most up to date reference documentation for your Corometrics equipment However in special cases involving field installed upgrades a drawing or parts list in this manual may not reflect the revision level of your unit s subassemblies When discrepancies are found contact the GE Service Department at one of the numbers found on the back cover of this manual ...

Page 230: ... 1 10 15224AA SPACER DRAWER 1 11 15223AA PLASTIC 9 CM PARTITION 1 12 15231A ASSY PCB SENSOR BOARD 1 13 2000147 001 SENSOR INSULATOR 170 SERIES 1 14 250099 SPRING COMPRESSION 24 OD 38L 1 15 2000222 001 SPRING CPRSN 3 OD 022WIRE SS 2 16 15136A MOTOR STEPPER ASSY 1 17 15202AA MOUNT MOTOR 1 18 15201AA PLATE PC MOUNTING 1 19 2000133 001 PRINTHEAD 8 DOTS MM 216MM WIDE 1 20 15203AA PLATE HEAD MOUNTING 1 ...

Page 231: ...NT TOP COVER MODEL175 1 39 15323BA KYBD MEMBRANE US1 1 40 15324BA LABEL DISPLAY OVERLAY US1 1 41 14943AA CLIP SPEAKER 2 42 2000178 001 PLUG CALL LIGHT 1 43 2000359 001 STANDOFF M F 440 1IN LG ALUM 1 44 2000246 001 PLUG TELEMETRY 1 45 2000186 001 PLUG NICOLAY CONN 1 46 2000240 001 LABEL CUSTOM REAR PANEL OVERLAYS 170 1 47 284031 SCR 4 40 BH 1 4 LG SLTD N YLON 2 49 608030 CABLE MOUNT ADHESIVE BACK 2...

Page 232: ...TRAY 170 SERIES 1 59 13984AA LBL PACKING LIST 340 1 60 2000555 001 SHLD SPEAKER 170 1 61 410066 POLY BAG 23X26X 006 1 62 410097 TAPE SHIPPING 3IN WIDE 4 63 4281CA LBL SERIAL UL APPV D 155 1 64 4281DA LABEL C UL HAZZARD TAG120 SERIES 1 Table 11 1 Model 171 Final Assembly 200268 188 Continued Item Number Part Number Description Qty ...

Page 233: ... 1 10 15224AA SPACER DRAWER 1 11 15223AA PLASTIC 9 CM PARTITION 1 12 15231A ASSY PCB SENSOR BOARD 1 13 2000147 001 SENSOR INSULATOR 170 SERIES 1 14 250099 SPRING COMPRESSION 24 OD 38L 1 15 2000222 001 SPRING CPRSN 3 OD 022WIRE SS 2 16 15136A MOTOR STEPPER ASSY 1 17 15202AA MOUNT MOTOR 1 18 15201AA PLATE PC MOUNTING 1 19 2000133 001 PRINTHEAD 8 DOTS MM 216MM WIDE 1 20 15203AA PLATE HEAD MOUNTING 1 ...

Page 234: ...R MODEL 170 1 39 15323AA KYBD MEMBRANE US2 1 40 15324AA LABEL DISPLAY OVERLAY US2 1 41 14943AA CLIP SPEAKER 2 42 2000178 001 PLUG CALL LIGHT 1 43 2000359 001 STANDOFF M F 440 1IN LG ALUM 1 44 2000246 001 PLUG TELEMETRY 1 46 2000240 001 LABEL CUSTOM REAR PANEL OVERLAYS 170 1 47 284031 SCR 4 40 BH 1 4 LG SLTD N YLON 2 49 608030 CABLE MOUNT ADHESIVE BACK 2 50 608036 TYRAPS CABLE TIES 2 51 7714AAT POW...

Page 235: ... LBL PACKING LIST 340 0001 60 2000555 001 SHLD SPEAKER 170 1 61 410066 POLY BAG 23X26X 006 1 62 410097 TAPE SHIPPING 3IN WIDE 4 63 4281CA LBL SERIAL UL APPV D 155 1 64 4281DA LABEL C UL HAZZARD TAG120 SERIES 1 Table 11 2 Model 172 Final Assembly 2000268 189 Continued Item Number Part Number Description Qty ...

Page 236: ... 1 11 15223AA PLASTIC 9 CM PARTITION 1 12 15231A ASSY PCB SENSOR BOARD 1 13 2000147 001 SENSOR INSULATOR 170 SERIES 1 14 250099 SPRING COMPRESSION 24 OD 38L 1 15 2000222 001 SPRING CPRSN 3 OD 022WIRE SS 2 16 15136A MOTOR STEPPER ASSY 1 17 15202AA MOUNT MOTOR 1 18 15201AA PLATE PC MOUNTING 1 19 2000133 001 PRINTHEAD 8 DOTS MM 216MM WIDE 1 20 15203AA PLATE HEAD MOUNTING 1 21 2000223 001 SPRING CPRSN...

Page 237: ...DEL 173 1 41 14943AA CLIP SPEAKER ACCESS HOME MONITOR 2 42 2000178 001 PLUG CALL LIGHT 1 43 2000359 001 STANDOFF M F 440 1IN LG ALUM 1 44 2000246 001 PLUG TELEMETRY 1 45 15287AP PCB ASSY FECG UA BOARD PURCH 1 46 2003930 001 LABEL REAR PANEL 170 SERIES 1 47 284031 SCR 4 40 BH 1 4 LG SLTD N YLON 2 49 608030 CABLE MOUNT ADHESIVE BACK 2 50 608036 TYRAPS CABLE TIES 2 51 7714AAT POWER SUPPLY 12V 30W EXT...

Page 238: ...PING 3IN WIDE 4 63 4281DA LABEL C UL HAZZARD TAG120 SERIES 1 64 4281EA LABEL SERIAL NUMBER UL MODEL NUMBER 1 65 408230 008 LABEL CE MARK 1 66 160019 SEALANT MED BLUE 0 67 2000741 001 LABEL TRANS STOR COND 170 SERIES 1 Table 11 3 Model 173 Final Assembly 2001972 037 Continued Find Num Item Number Item Description Qty ...

Page 239: ...ER 1 11 15223AA PLASTIC 9 CM PARTITION 1 12 15231A ASSY PCB SENSOR BOARD 1 13 2000147 001 SENSOR INSULATOR 170 SERIES 1 14 250099 SPRING COMPRESSION 24 OD 38L 1 15 2000222 001 SPRING CPRSN 3 OD 022WIRE SS 2 16 15136A MOTOR STEPPER ASSY 1 17 15202AA MOUNT MOTOR 1 18 15201AA PLATE PC MOUNTING 1 19 2000133 001 PRINTHEAD 8 DOTS MM 216MM WIDE 1 20 15203AA PLATE HEAD MOUNTING 1 21 2000223 001 SPRING CPR...

Page 240: ...MODEL 174 1 41 14943AA CLIP SPEAKER ACCESS HOME MONITOR 2 42 2000178 001 PLUG CALL LIGHT 1 43 2000359 001 STANDOFF M F 440 1IN LG ALUM 1 44 2000246 001 PLUG TELEMETRY 1 45 2000952 001 PCB DUAL U S FECG 174 1 46 2003930 001 LABEL REAR PANEL 170 SERIES 1 47 284031 SCR 4 40 BH 1 4 LG SLTD N YLON 2 49 608030 CABLE MOUNT ADHESIVE BACK 2 50 608036 TYRAPS CABLE TIES 2 51 7714AAT POWER SUPPLY 12V 30W EXTE...

Page 241: ...PING 3IN WIDE 4 63 4281DA LABEL C UL HAZZARD TAG120 SERIES 1 64 4281EA LABEL SERIAL NUMBER UL MODEL NUMBER 1 65 408230 008 LABEL CE MARK 1 66 160019 SEALANT MED BLUE 0 67 2000741 001 LABEL TRANS STOR COND 170 SERIES 1 Table 11 4 Model 174 Final Assembly 2001972 038 Continued Find Num Item Number Item Description Qty ...

Page 242: ... S WATERTIGHT XDCR 1 8 14640AA CABLE MOUNTING NUT TOCO US WATERTIGHT 1 9 284106 SCR 4 40 PH 5 16L W SEAL PHIL SS LL 5 10 14638AA SCREW CAP WATERTIGHT 4 11 15254AA SCREW CAP FLAT MARING WATERTIGHT SCUCERS 1 12 7529DA KNOB TOCO KNOB TOP XDCR K IT116 1 13 281260 SCR SET 2 56 1 8L OVAL PT SS 1 17 8974AA ABD STRAP BUTTON STYLE BE LT 1 18 14855AA WARNING TAG CABLES WATERTIGHT 1 19 13658FA LBL CE CAUTION...

Page 243: ...CR 4 40 PH 5 16L W SEAL PHIL SS LL 5 10 2008660 001 SCR CAP TOCO U S 4 11 15254AA SCREW CAP FLAT MARING WATERTIGHT SCUCERS 1 12 7529EA KNOB TOP NAUTILUS WATERTIGHT TOCO 1 13 281260 SCR SET 2 56 1 8L OVAL PT SS 1 17 8974AA ABD STRAP BUTTON STYLE BE LT 1 18 14855AA WARNING TAG CABLES WATERTIGHT 1 19 13658FA LBL CE CAUTION IP68 WATERTIGHT XDCR 1 20 440011 LABEL 2 25X 75 SELF LAM WHITE 1 22 4991AA ACC...

Page 244: ...TIGHT 1 9 284106 SCR 4 40 PH 5 16L W SEAL PHIL SS LL 5 10 2008660 001 SCR CAP TOCO U S 4 11 15254AA SCREW CAP FLAT MARING WATERTIGHT SCUCERS 1 13 281260 SCR SET 2 56 1 8L OVAL PT SS 1 16 7514DA ABDOMINAL STRAP BLUE 1 18 14855AA WARNING TAG CABLES WATERTIGHT 1 19 13658FA LBL CE CAUTION IP68 WATERTIGHT XDCR 1 20 440011 LABEL 2 25X 75 SELF LAM WHITE 1 22 4991AA ACC PACKER 1 23 410069 PACK MATERIAL ST...

Page 245: ...TIGHT XDCR 1 8 14640AA CABLE MOUNTING NUT TOCO US WATERTIGHT 1 9 284106 SCR 4 40 PH 5 16L W SEAL PHIL SS LL 5 10 14638AA SCREW CAP WATERTIGHT 4 11 15254AA SCREW CAP FLAT MARING WATERTIGHT SCUCERS 1 13 281260 SCR SET 2 56 1 8L OVAL PT SS 1 16 7514CA ABDOMINAL STRAP GRAY 1 18 14855AA WARNING TAG CABLES WATERTIGHT 1 19 13658FA LBL CE CAUTION IP68 WATERTIGHT XDCR 1 20 440011 LABEL 2 25X 75 SELF LAM WH...

Page 246: ...8048 SHRINK TUBING 1 4 BLK 021 9 605105 WIRE 24 STRANDED GRN 125 10 210179 HALF SHELL W TONGUE 1 11 210178 RING PLASTIC 21 8 X4 1 12 212133 PLUG 12 CKT GREY BRN A D 1 13 210226 CONTACT MALE 24AWG 18MM L G 1 14 2000528 001 COVER INTERFACE CABLE 1 15 2002641 001 O RING 101 ID 070THK 70DUR SILICONE 1 16 2000529 001 PIN COAX RECEPTACLE 1 17 2000527 001 CABLE BASE INTERFACE 1 18 2000429 003 PCB LEG PLA...

Page 247: ......

Page 248: ...esentative GE Medical Systems Information Technologies GmbH Munzinger Straße 3 5 D 79111 Freiburg Germany Tel 49 761 45 43 0 Fax 49 761 45 43 233 Asia Headquarters GE Medical Systems Information Technologies Asia GE China Co Ltd 24th Floor Shanghai MAXDO Center 8 Xing Yi Road Hong Qiao Development Zone Shanghai 200336 P R China Tel 86 21 5257 4650 Fax 86 21 5208 2008 0459 gemedical com ...

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