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TruSat Technical Reference Manual

5–2

5.2 TruSat assembly

TruSat parts and service kits

The item number identifies the part shown in the assembly drawing.

Item

Description

REF

Plate, end, outer

6050-0006-566

Plate, end, outer, white

6050-0006-584

Bumper, left (not shown)

6050-0006-569

Bumper, left for RS-232 connector

6050-0006-915

Plate, end, inner left

6050-0006-568

Battery pack

6050-0006-578

Service kit, Trend Download board (RS-232)

6050-0007-160

Service kit, System board PCA

6050-0007-161

Service kit, Display board PCA

6050-0007-159

Handle

6050-0006-571

Service kit, lens

6050-0007-163

Button, power

6050-0006-573

Button, power, pad

6050-0006-953

Code ring, SpO

IMC

6050-0006-597

Screw, 6-32 X.5 in. PPH SS INT SEM

6019-0000-125

ComWheel

898794

Bumper, right

6050-0006-570

Nut, encoder, TruSat

6050-0006-582

Plate, end, inner right

6050-0006-567

Spacer

6029-0000-125

Button, Alarm Silence

6050-0006-574

Service kit, speaker

6050-0007-063

Shield, power

6050-0006-598

Power jack assembly

6050-0006-580

Service kit, housing, yellow

6050-0007-158

Service kit, housing, white

6050-0007-157

Encoder, rotary, 16 POS w/SW, 3.3 V and washer
NOTE: Includes nut that should be discarded; use only the
TruSat encoder nut (item 16).

6023-0000-033

Содержание TruSat

Страница 1: ...GE Healthcare TruSat Pulse Oximeter Technical Reference Manual ...

Страница 2: ......

Страница 3: ...GE Healthcare TruSat Pulse Oximeter Technical Reference Manual 6050 0006 813 March 2005 ...

Страница 4: ...this manual Service and repair Service and repair procedures must be performed by authorized service personnel Repair this device or its parts only in accordance with instructions provided by the manufacturer To order replacement parts or for assistance contact an authorized service office When shipping the monitor for repair clean the monitor allow it to dry completely and pack it for shipment in...

Страница 5: ...9 2 Theory of Operations 2 1 2 1 Functional block diagram 2 1 2 2 Measurement principles 2 2 TruSignal Enhanced SpO2 2 2 PIr pulsatile value 2 2 Signal processing 2 2 2 3 Power supply and battery 2 2 2 4 System board 2 3 Microcontroller 2 4 2 5 Display board 2 4 2 6 Trend Download board RS 232 2 5 Alarm event relay 2 6 3 Troubleshooting 3 1 3 1 Troubleshooting guide 3 1 Error numbers 3 3 3 2 Syste...

Страница 6: ...Cleaning 4 4 4 3 Software upgrade 4 5 Checking the current software versions 4 5 Installing the software upgrade 4 5 4 4 Trend Download upgrade 4 6 Installing the Trend Download board 4 7 4 5 Alarm annunciation 4 8 Customizing a cable 4 8 Enabling alarm annunciation 4 9 Before installing the Trend Download board 4 9 After installing the Trend Download board 4 10 Relay switch fuse replacement 4 11 ...

Страница 7: ...ht for low light conditions The monitor also contains on screen controls for changing monitor settings a lock function and an alarm system that generates audible and visual alarm signals The optional Trend Download board allows users to set the monitor clock print and download trends to a computer Monitors can be factory configured with this option An upgrade kit is also available Important Only O...

Страница 8: ...4 Pulse rate high and low alarm limit settings adjustable 5 Plethysmographic pulse bar pleth bar 6 Alarm LED 7 Alarm Silence button 8 ComWheel navigation and selection knob for changing monitor settings 9 Display area for on screen control symbols set pulse beep volume set alarm volume switch backlight ON OFF display PIr print and the lock symbol 10 Battery indicator 11 Power button and external p...

Страница 9: ...symbols A label on the underside of the monitor contains the model number serial number date of manufacture and other information about the monitor The following symbols also appear on this label and or on the packaging for the monitor Sensor connector defibrillation proof type BF applied part DC current RS 232 connector for the Trend Download option Manufacturer Power supply connector external po...

Страница 10: ...he equipment or system This monitor is not intended for use in a magnetic resonance imaging MRI environment When you connect equipment to the monitor you are configuring a medical system and are responsible for ensuring that the system complies with IEC 60601 1 1 and with local requirements Connect only external devices specified for use with this monitor Power OFF and disconnect the monitor from ...

Страница 11: ...absorption Red LED wavelength range 650 to 670 nm Infrared IR LED wavelength range 930 to 950 nm Average power 1 mW SpO2 Calibrated for functional oxygen saturation Calibration range 70 to 100 Measurement and display range 1 to 100 Display resolution 1 First reading full accuracy 10 seconds Accuracy Arms root mean square of paired values previously represented by 1 SD 70 to 100 2 digits without mo...

Страница 12: ... and signal strength Display update time SpO2 pulse rate and PIr values 1 second 0 25 second Plethysmographic pulse bar 20 Hz minimum 05 second Alarms Visual and audible indicators for physiological alarms SpO2 and pulse rate limit alarms and technical alarms sensor condition battery condition internal malfunction Visual alarm indicator red yellow LED High priority alarm red ON or red flashing ON ...

Страница 13: ...With Trend Download option 24 hours NOTE Continuous use of the backlight reduces the time approximately 50 Charging time full capacity 3 5 hours typical Battery indicator 4 segment symbol shaded segments represent battery charge 0 shaded low or depleted 4 shaded fully charged Automatic power OFF to conserve battery 20 minutes after monitoring stops Trend Download option Trend data storage 48 hours...

Страница 14: ...ied in the US and Canada with respect to electric shock fire and mechanical hazards only in accordance with the Canadian Standards Association CAN CSA C22 2 No 601 1 and Underwriters Laboratories Inc UL 2601 1 Related standards and tests Standard Description EN 60601 1 clause 21 Rigidity strength handle loading drop test EN 60601 1 clause 42 Temperature EN 60601 1 clause 48 Non toxic materials use...

Страница 15: ...ated maximum output power of the transmitter W 150 kHz to 80 MHz 80 MHz to 800 MHz 800 MHz to 2 5 GHz 0 01 0 07 0 07 0 07 0 1 0 22 0 22 0 22 1 0 70 0 70 0 70 10 2 2 2 2 2 2 100 7 0 7 0 7 0 For transmitters rated at a maximum output power not listed above the recommended separation distance d in meters m can be estimated using the equation applicable to the frequency of the transmitter where P is t...

Страница 16: ...ge IEC 61000 4 5 1 kV differential mode 2 kV common mode 1 kV differential mode 2 kV common mode Mains power quality should be that of a typical commercial or hospital environment Voltage dips short interruptions and voltage variations on power supply input lines IEC 61000 4 11 5 UT 95 dip in UT for 0 5 cycle 40 UT 60 dip in UT for 5 cycles 70 UT 30 dip in UT for 25 cycles 5 UT 95 dip in UT for 5 ...

Страница 17: ... rating of the transmitter in watts W according to the transmitter manufacturer and d is the recommended separation distance in meters m NOTE At 80 MHz and 800 MHz the separation distance for the higher frequency range applies Interference may occur in the vicinity of equipment marked with this symbol Field strengths from fixed RF transmitters as determined by an electromagnetic site survey a shou...

Страница 18: ...TruSat Technical Reference Manual 1 12 ...

Страница 19: ...ensor Digital isolators Isolated power supply Data status info DSP VDD LED timing Code data memory Voltage regulators Battery charger Clock Display board connector ComWheel Backlight 4 2 V regulator LCD AC alarm LEDs V CORE regulator Backlight supply Watchdog micro Keys Display control Microprocessor Speaker driver LED drive Analog front end AUX A D converter CPLD Line power supply ON OFF alarm sw...

Страница 20: ...length pulsatile system red and infrared light to distinguish between oxyhemoglobin O2Hb and reduced hemoglobin HHb The light is emitted from the oximeter sensor which contains a light source and a photodetector The light source consists of red and infrared light emitting diodes LEDs The photodetector is an electronic device that produces an electrical current proportional to incident light intens...

Страница 21: ...hile simultaneously supplying power to the rest of the circuit The board transmits data for the display and monitors the Alarm Silence and power switches It controls the backlight and drives the speaker The System board drives the sensor LEDs and receives photodetector signals from the sensor The output from the signals is used to determine patient oxygen saturation perfusion and pulse rate The el...

Страница 22: ...re 2 3 Display board block diagram The Display board contains the liquid crystal display LCD on which information sent by the System board appears oxygen saturation pulse rate PIr plethysmographic pulse bar pleth bar alarm limit settings and screen symbols for changing monitor settings It also displays indicators for the battery alarm silence lock status and alarm messages The backlight power swit...

Страница 23: ...ltage output to the secondary A regulator provides a 5 VDC regulated supply for the secondary The regulator delivers 1 A of current but the secondary typically draws 10 mA 40 mA when the alarm event relay is energized The board ID circuit identifies the configuration of the Trend Download board When no jumpers are installed default configuration a 1 5 VDC output is read by the microcontroller on t...

Страница 24: ...32 DIN 6 connector X2 The contact rating is 0 5 A 200 VAC For power conservation S1 is set to disable by default meaning alarm annunciation is disabled When the relay is energized the board draws additional power each time an alarm condition is active The alarm event relay and the RS 232 output are isolated from the monitor and from the patient to eliminate the possibility of ground loops For over...

Страница 25: ...ency setting Set the line power frequency to match your local AC power source 50 Hz or 60 Hz See Functional check in the Service Procedures chapter Signal interference due to poor grounding at AC power source Use a grounded AC power source or use battery power Signal interference due to adjacent sensors two or more SpO2 sensors on the same hand or foot for example Apply only one sensor to the hand...

Страница 26: ...attery that was completely depleted it may be necessary to cycle power ON OFF several times Battery is disconnected Connect the battery to the System board Battery failure Check the battery voltage If it is 3 2 V or less the battery has failed replace the battery System board failure Replace the System board Monitor is connected to external power but green LED is OFF Power cord failure Check the p...

Страница 27: ...sent to the nurse call system Alarms have been silenced Press the Alarm Silence button to cancel the alarm silence Blown fuse on Trend Download board Replace the relay switch fuse Error numbers If either message listed below is displayed first power OFF then ON again If the message reappears note the error number displayed in the high SpO2 alarm limit area and refer to the chart below for guidance...

Страница 28: ...rocessor DSP D3 Complex programmable logic device CPLD D8 Microcontroller E44 Test point E45 Test point E60 Test point T1 Transformer X1 Jumper set board configuration identification 4 pin X2 ComWheel connector 6 pin X4 Speaker connector 2 pin X5 Pulse oximetry connector 9 pin X6 Battery connector 4 pin X7 DC line power connector 2 pin X8 Trend Download board connector 20 pin X11 Software upgrade ...

Страница 29: ...configuration 3 4 Alternate board configuration C A A jumper across these two pins will identify a different board configuration ComWheel connector X2 Pin Signal Name I O Description 1 GND GND Non isolated ground 2 GND GND Non isolated ground 3 CW_PB I COM wheel push button signal 4 CW_OUTB I Phase B ComWheel input signal 5 CW_OUTA I Phase A ComWheel input signal 6 CW_VCC O Modulated ComWheel powe...

Страница 30: ...ional current 6 PD_A I Photodiode anode signal 7 GND GND Isolated ground 8 PRB_ID I Probe ID Bin resistor signal 9 CATHODES I O LED cathodes bi directional current Battery connector X6 Pin Signal Name I O Description 1 BATT PWR Negative terminal of battery current return 2 BATT PWR Positive terminal of battery current input 3 GND GND Non isolated ground 4 NTC I Battery thermistor DC line power con...

Страница 31: ... select 0 11 ______________________ SPI_CS_OPTION1 O SPI chip select 1 12 GND GND Non isolated ground 13 UART_TXD O RS 232 transmit data 14 UART_RXD I RS 232 receive data 15 UART_CTS I RS 232 hardware handshaking 16 UART_RTS O RS 232 hardware handshaking 17 GND GND Non isolated ground 18 NURSE_CALL O Nurse call alarm signal 19 BATT PWR Battery voltage isolated by ferrite 20 BATT PWR Battery voltag...

Страница 32: ... Non isolated ground 11 GRN_AC_LED O Supply voltage for DC line power LED 12 GND GND Non isolated ground 13 SPARE_KEY0 I O Unused 14 GND GND Non isolated ground 15 SPARE_KEY1 I O Unused 16 GND GND Non isolated ground 17 I2C_SDAT O I2C bus serial data 18 GND GND Non isolated ground 19 I2C_SCLK O I2C bus serial clock 20 GND GND Non isolated ground 21 ALARM_SW I Alarm button signal active high 22 GND...

Страница 33: ... to board 30 pin X2 Backlight Display board test points NOTE TP7 is not used TP1 through TP6 TP8 and TP9 are for unused pins Test point Signal name Description TP10 V_ON 3 V continuous supply TP11 V_ON 3 V continuous supply TP12 ALARM_LED_RED Red alarm LED TP13 ALARM_LED_YEL IR alarm LED TP14 FB Feedback for TPS77001 regulator 1 22 V TP15 BATT Battery terminal TP16 __________ LCD_EN Enables the 4 ...

Страница 34: ...10 GND GND Non isolated ground 11 GRN_AC_LED I Supply voltage for DC line power LED 12 GND GND Non isolated ground 13 SPARE_KEY0 I O Unused 14 GND GND Non isolated ground 15 SPARE_KEY1 I O Unused 16 GND GND Non isolated ground 17 I2C_SDAT I I2C bus serial data 18 GND GND Non isolated ground 19 I2C_SCLK I I2C bus serial clock 20 GND GND Non isolated ground 21 ALARM_SW O Alarm button signal active h...

Страница 35: ... 2 VDD PWR 3 V power signal isolated by ferrite 3 OPT_BRD_ID O Trend Download board ID analog signal 4 SPI_DIN I SPI data in signal 5 GND GND Non isolated ground 6 SPI_DOUT O SPI data out signal 7 GND GND Non isolated ground 8 SPI_CLK I SPI clock 9 GND GND Non isolated ground 10 _______________________ SPI_CS_OPTION0 I SPI chip select 0 11 ______________________ SPI_CS_OPTION1 I SPI chip select 1 ...

Страница 36: ...ND GND connection 4 RTS O Ready to send RTS 5 CTS I Clear to send CTS 6 RXD I Receive data ID connector X3 Pin Signal Name I O Description 1 2 Alternate board configuration B A A jumper across these two pins will identify a different board configuration 3 4 Alternate board configuration C A A jumper across these two pins will identify a different board configuration ...

Страница 37: ...ct the power supply to the power outlet Important If you are preparing the monitor for first time use or have just removed it from extended storage charge the battery for three hours BEFORE you power ON 2 Power ON the monitor Check for the following during startup The power on tones sound All display elements including on screen controls illuminate briefly The alarm LED is lit red then yellow The ...

Страница 38: ...ayed NOTE Press the ComWheel to exit the PIr display 9 Check the battery indicator If the battery is low recharge the battery before using it to power the monitor 10 If the monitor is configured with the Trend Download option check the clock settings Go to Setting the clock Important DO NOT use the monitor if it fails to function as described To identify and correct the problem refer to the Troubl...

Страница 39: ...oose year 0 99 hour 0 23 month 1 12 minute 0 59 day 1 31 exit 3 Turn then press the ComWheel to select a clock option The selected option flashes ON OFF Turn then press the ComWheel to select the setting for that option Repeat to set each clock option 4 When you are finished use the ComWheel to select exit Electrical safety check WARNING Measure the leakage current s in accordance with applicable ...

Страница 40: ...of the monitor and before sending the monitor for repair CAUTION Do not autoclave pressure sterilize or gas sterilize the monitor Do not immerse the monitor in liquid or allow liquid to enter the interior CAUTION Abrasive materials or harsh chemicals may damage the surface of the monitor Do not use petroleum based solutions or solutions containing acetone freon or harsh solvents 1 Power OFF the mo...

Страница 41: ...nitor setting that is set to match the AC power source 2 If either software version is below the version noted on the software upgrade label install the software upgrade Installing the software upgrade WARNING Power OFF and disconnect the monitor from external power before performing any procedure that involves disassembly of the monitor WARNING Internal electronic components are susceptible to da...

Страница 42: ...the displayed version numbers do not match the upgrade version numbers repeat the upgrade When the upgrade is complete be sure to remove the upgrade card BEFORE you power OFF 8 Connect the speaker cable and the ComWheel encoder cable to the System board Position the cables inside the housing to ensure they will not be pinched 9 Place the bumper assembly over the housing and tighten the 3 screws Im...

Страница 43: ...are used for the boards Then slide the boards all the way out the left side of the housing NOTE If you dislodge the Alarm Silence button the power button and or the power button pad set the part s aside until you reinstall the boards 7 Connect the ribbon cable to the Trend Download board and to the System board 8 Position all three boards in their slots in the left side of the housing Slowly slide...

Страница 44: ...he DB9 connector on the TruSat PC RS 232 cable supplied with the Trend Download upgrade or on the TruSat serial printer cable supplied with the optional printer DIN 6 connector Connect to pins 1 and 3 using either cable DB9 connector Connect to pins 5 and 9 using either cable DIN 6 both cables DB9 on TruSat PC RS 232 cable 6050 0006 924 DB9 on TruSat serial printer cable 6050 0006 925 Male DIN 6 F...

Страница 45: ...installing the Trend Download board If the Trend Download board is already installed see After installing the Trend Download board Before installing the Trend Download board WARNING Internal electronic components are susceptible to damage by electrostatic discharge To avoid damage when disassembling the monitor observe the standard precautions and procedures for handling static sensitive component...

Страница 46: ...from the monitor 2 On the right ComWheel side of the monitor loosen the 3 screws until you can lift the bumper assembly away from the housing 3 Note the orientation of the ComWheel encoder cable and the speaker cable Each is keyed for correct connection to the System board Carefully disconnect both cables from the System board and remove the bumper assembly 4 Locate the alarm event relay switch on...

Страница 47: ...he battery cable from the System board Disconnect the cables 6 Note which slots in the housing are used for the boards Then slide the boards all the way out the left side of the housing NOTE If you dislodge the Alarm Silence button the power button and or the power button pad set the part s aside until you reinstall the boards 7 Disconnect the ribbon cable from the Trend Download board 8 Using a n...

Страница 48: ...Right bumper Speaker Right inner end plate ComWheel knob ComWheel encoder with spacer washer and nut Outer end plate 1 Power OFF and disconnect the power cord and other cables from the monitor 2 Remove the 3 screws that secure the right bumper assembly to the housing 3 Note the orientation of the ComWheel encoder cable and the speaker cable Each is keyed for correct connection to the System board ...

Страница 49: ...or See TruSat assembly drawing later in this manual Housing assembly 1 Position the right end of the handle in the slots in the right side of the housing Press down on the handle until the left end extends beyond the left side of the housing Gently bend the tabs as needed to position them in their slots on the left side of the housing Slide the left end of the handle into the housing 2 Inside the ...

Страница 50: ... spacer over the ComWheel encoder post and insert the encoder post through the hole in the right inner end plate Be sure the end plate standoffs and the encoder post face away from the housing 3 Orient the encoder with its cable toward the center of the end plate and install the washer and nut that secure the encoder to the end plate Install the ComWheel encoder nut using a 7 16 inch nut driver 4 ...

Страница 51: ...ole mount 6050 0007 197 Power supply TruSat AC to DC converter 6050 0006 579 Power supply optional for use with auxiliary 12 VDC power source such as a vehicle cigarette lighter 6021 0000 042 Printer assembly US 6050 0007 165 Europe 6050 0007 167 Japan 6050 0007 166 NOTE Each printer assembly includes Serial printer and instructions Cable TruSat serial printer Printer battery pack Printer paper 1 ...

Страница 52: ... 0007 159 8 Handle 6050 0006 571 9 Service kit lens 6050 0007 163 10 Button power 6050 0006 573 11 Button power pad 6050 0006 953 12 Code ring SpO2 IMC 6050 0006 597 13 Screw 6 32 X 5 in PPH SS INT SEM 6019 0000 125 14 ComWheel 898794 15 Bumper right 6050 0006 570 16 Nut encoder TruSat 6050 0006 582 17 Plate end inner right 6050 0006 567 18 Spacer 6029 0000 125 19 Button Alarm Silence 6050 0006 57...

Страница 53: ...Service Parts 5 3 TruSat assembly drawing 1 2 22 20 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 21 18 19 23 6 places 1 Power supply connector 24 ...

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