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Model S4000CH

8

2.0 Product Description

2.1 General Description

The Model S4000CH is an intelligent sensor for the detection of combustible gases and
vapors. The microprocessor-based electronics process information at the sensor site within
an explosion-proof housing.

A digital display provides indications and display codes that can be viewed through a window
in the cover. A red LED above the digital display signifies an ALARM condition, while a red
LED below the digital display signifies a WARN condition. Analog signal (4-20 mA) and relays
provide remote and/or discrete indications of the sensor’s operation. Optional dual redundant
Modbus, HART or HART and single Modbus provide digital communication.

The Model S4000CH Intelligent Sensor is rated explosion-proof for use in the following
hazardous areas:



CSA/FM: Class I, Division 1, Groups B, C, D and Class I, Zone 1, IIB+H

2



ATEX/IECEx: Zone 1, Group IIB + H

2

and Zone 21, Group IIIC

Figure 7: Model S4000CH Intelligent Sensor

NOTE:

The image in Figure 7 is for reference only. See section 7.3 for actual product
specifications.

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Summary of Contents for S4000CH

Page 1: ...s and to the extent specifically authorized in writing by General Monitors Instruction Manual 10 16 General Monitors reserves the right to change published specifications and designs without prior notice MANS4000CH Part No MANS4000CH Revision N 10 16 Model S4000CH Intelligent Sensor for Combustible Gas Detection ...

Page 2: ...Model S4000CH i This page intentionally left blank ...

Page 3: ...Terminal Block TB2 Power and Signal Connections 15 3 5 3 DC Power and COM Connections 17 3 5 4 Analog Signal Connections 17 3 5 5 ARGC Terminal Connections 18 3 5 6 Terminal Block TB3 Relay Connections 18 3 5 7 European Union EU Approved Applications 19 3 5 8 Cable Termination in the Non Hazardous Area 19 3 6 Maintaining the X P Integrity 20 3 7 Start Up Checklist 21 3 8 Start Up 21 3 9 Relay Rese...

Page 4: ... 6 F7 EEPROM Error 35 5 1 7 F8 Failure to Complete Setup 35 5 1 8 F9 Gas Check Period Exceeded 35 5 1 9 F10 Switch Error 35 5 1 10 F11 Internal Error 36 5 1 11 F12 ARGC fault 36 5 2 General Monitors Offices 36 6 0 MODBUS INTERFACE 37 6 1 Baud Rate 37 6 2 Data Format 37 6 3 Modbus Read Status Protocol Query Response 37 6 3 1 Modbus Read Query Message 37 6 3 2 Modbus Read Response Message 37 6 4 Mod...

Page 5: ...6 8 31 Function Code Errors 22h 50 6 8 32 Starting Address Errors 23h 50 6 8 33 Number of Register Errors 24h 50 6 8 34 RXD CRC Errors Hi 25h 50 6 8 35 RXD CRC Errors Lo Same as Hi 26h 50 6 8 36 Parity Errors 27h 50 6 8 37 Overrun errors 28h 51 6 8 38 Framing Errors 29h 51 6 8 39 Total Software CH1 Errors 2Ah 51 6 8 40 New Sensor Calibration 2Bh 51 6 8 41 Clear Hardware Errors 2Ch 51 6 8 42 Clear ...

Page 6: ...ote Sensor Cable Lengths 60 7 3 6 Environmental Specifications 60 7 4 Approvals 61 7 5 Sensitivities to Other Gases 61 7 6 Spare Parts and Accessories 63 7 6 1 Sensors 63 7 6 2 Sensor Housing 63 7 6 3 Sensor Accessories 63 7 6 4 Calibration Equipment 63 7 6 5 S4000CH Replacement Parts 64 7 6 6 Recommended Spare Parts for One 1 Year 64 7 7 FM Approval 65 ...

Page 7: ...nting Dimensions in inches 12 Figure 11 Outline and Mounting Dimensions ARGC in inches 13 Figure 12 S4000CH Terminal Block Locations 14 Figure 13 Remote Junction Box Terminal Block 14 Figure 14 Spring Type Terminal Block Operation 15 Figure 15 Screw Type Terminal Block Operation 16 Figure 16 Wire Strip Length 16 Figure 17 Relay Protection for DC and AC Loads 19 Figure 18 Relay Reset 22 Figure 19 U...

Page 8: ...7 Fault Relay Connections 19 Table 8 GM Locations 36 Table 9 Data Format 37 Table 10 Exception Codes 39 Table 11 Com1 Baud Rate 46 Table 12 Com1 Data Format 46 Table 13 Current Chart 47 Table 14 Com2 Baud Rate 48 Table 15 Com2 Data Format 48 Table 16 24 VDC Cable Lengths with Relays 59 Table 17 24 VDC Cable Lengths w o Relays 59 Table 18 ARGC Cable Lengths 60 Table 19 Analog Output Cable Lengths 6...

Page 9: ...wdriver maximum 3 16 5 mm width for terminal block connections included with gas detector Adjustable wrench for conduit or cable gland connections not included Information on Class I Division 1 and Zone 1 wiring methods can be found in the NEC and CEC Figure 1 Outline and Mounting Dimensions in inches Figure 2 Outline and Mounting Dimensions ARGC in inches ...

Page 10: ...Model S4000CH 2 Figure 3 Sensor Remote Installation in inches Figure 4 ARGC Remote Installation ...

Page 11: ...WG and the screw type terminal block accepts 12 AWG to 18 AWG stranded or solid wire Each wire should be stripped before wiring the S4000CH intelligent sensor To connect wiring to the spring type terminal block insert a screwdriver into the orange tab and press down Figure 5 opening the terminal Insert the wire into the terminal and release the orange tab clamping the wire in the terminal Check th...

Page 12: ... to TB2 position 8 To connect the analog signal please refer to Section 3 5 4 General Monitors recommends that the S4000CH Intelligent Sensor be calibrated one hour after start up and that the calibration be checked at least every ninety 90 days to ensure system integrity The instrument is now ready to operate Please consult the manual for more information on the instrument s many features NOTE If...

Page 13: ...d be used when these hazards are present DO NOT OPEN WHEN AN EXPLOSIVE ATMOSHPERE IS PRESENT READ AND UNDERSTAND INSTRUCTION MANUAL BEFORE OPERATING OR SERVICING OPEN CIRCUIT BEFORE REMOVING COVER POTENTIAL ELECTROSTATIC CHARGING HAZARD USE ONLY DAMP CLOTH FOR CLEANING NE PAS OUVRIR UN PRÉSENCE D ATMOSPHÉRE EXPLOSIVE LIRE ET COMPRENDRE MANUEL D INSTRUCTIONS AVANT D UTILISER OU SERVICE OUVRIR LE CI...

Page 14: ...ent is incorporated into equipment The Universal Gas Sensor 11159 XX utilizing Types 2850FT Cat 11 and 2762 Cat 17 cement shall only be fitted to enclosures having a maximum reference pressure of 9 6 bar 1 3 System Integrity Verification Commissioning Safety Systems Before power up verify wiring terminal connections and stability of mounting for all integral safety equipment including but not limi...

Page 15: ...uld be performed as necessary Maintenance intervals should be independently established through a documented procedure including a maintenance log maintained by plant personnel or third party testing services Periodic System Verification The following system verifications should be performed at least annually Verify wiring terminal connections and stability of mounting for all integral safety equi...

Page 16: ...dition while a red LED below the digital display signifies a WARN condition Analog signal 4 20 mA and relays provide remote and or discrete indications of the sensor s operation Optional dual redundant Modbus HART or HART and single Modbus provide digital communication The Model S4000CH Intelligent Sensor is rated explosion proof for use in the following hazardous areas CSA FM Class I Division 1 G...

Page 17: ...0CH 9 Figure 8 Model S4000CH Intelligent Sensor with ARGC NOTE The image in Figure 8 is for reference only See section 7 3 for actual product specifications Figure 9 ARGC Remote Junction Box Assembly P N 80155 1 ...

Page 18: ...e lid included with gas detector Flat head screwdriver maximum 3 16 5 mm width for terminal block connections included with gas detector Adjustable wrench for conduit or cable gland connections not included 3 3 Choosing Product Locations There are no standard rules for sensor placement since the optimum sensor location is different for each application The customer must evaluate conditions at the ...

Page 19: ...ch applications the standard two year warranty would not apply WARNING General Monitors discourages the painting of sensor assemblies If the sensor head is painted over the gas will not be able to diffuse into the sensor If the assembly cover is painted over the digital display cannot be read 3 3 1 Remote Mounting of the Sensor from the Electronics If it is necessary to remotely mount the sensor f...

Page 20: ...l specifications can be found in Section 7 3 2 To prevent possible corrosion due to moisture or condensation it is recommended that the conduit connected to the S4000CH housing contain a drain loop NOTE For ATEX and IECEx applications conduit connections must only be made via suitably certified ATEX or IECEx as appropriate conduit stopping boxes Information on Class I Division 1 and Zone 1 wiring ...

Page 21: ...reads to be lubricated Grease must not be used As an alternate PTFE Teflon tape may be used on sensor accessory threads NOTE Do not use any material or substance on threads that contact the sensor housing The removal of particulate matter from sensor accessories may be done through the use of an appropriate halogen free solvent Water and ethanol are examples of suitable solvents The accessories sh...

Page 22: ...Model S4000CH 14 Figure 12 S4000CH Terminal Block Locations Figure 13 Remote Junction Box Terminal Block ...

Page 23: ...ut 2 CH1 Modbus 3 CH1 Modbus 4 CH2 Modbus 5 CH2 Modbus 6 Remote Calibration ARGC 7 Relay Reset 8 COM 9 24 VDC Power 10 24 VDC Power for ARGC Table 1 TB2 Power and Signal Connections It is recommended that a minimum three wire shielded cable be used for making the power and 0 20mA Output connection on the S4000CH It is also recommended that separate two wire shielded twisted pair cables be used for...

Page 24: ...ounter clockwise Insert the wire into the terminal and tighten the top screw clock wise Check the hold of the wire by GENTLY tugging it to ensure it is locked in Figure 15 Screw Type Terminal Block Operation Figure 16 Wire Strip Length NOTE Up to 14 AWG wire can be used if it is carefully stripped Figure 16 Ground 24 VDC ...

Page 25: ...ion 7 3 4 for cable length specifications To connect 24 VDC to the S4000CH connect the red wire 24V to TB2 position 9 Connect the black wire Ground to TB2 position 8 For making power and ground connections to display devices see Table 2 and Table 3 FROM TO S4000CH DC110 TA102A TB2 8 COM Rear COMMON Rear Pin 30d or 30z Table 2 Ground or Common Connections FROM TO S4000CH DC110 TA102A TB2 9 24 VDC R...

Page 26: ...rized Either wire can go to either terminal One wire goes to the Calibrate Input ARGC Output and the other wire goes to the 24 volts CAUTION When the ARGC is used it cannot be used as a calibration input 3 5 6 Terminal Block TB3 Relay Connections TB3 contains the connections for the Relay Contacts optional The function for the Warn and Alarm Relay connections vary according to the normal state of ...

Page 27: ... ratings are 8 A 250 VAC and 8 A 30 VDC resistive max 3 5 7 European Union EU Approved Applications Interconnecting cables must have an overall screen or screen and armor Cables BS5308 Part 2 Type 2 or equivalent are suitable Note that the terms screen and shield are equivalent for the purpose of this manual The cable armor must be terminated in a suitable cable gland at the detector to ensure a p...

Page 28: ...f threaded joints The acceptable limits for explosion proof housings that are used in hazardous locations are defined in CSA Standard C22 2 No 30 FM 3615 and EN IEC 60079 1 Anytime the cover of the S4000CH housing is removed or the cover bolts are loosened the flame path between the lid and the housing is affected If power is to be left on while removing the cover or loosening the cover bolts on t...

Page 29: ...curely installed or the area has been declassified Calibrate one hour after start up 3 8 Start Up Before applying power to the system for the first time all wiring connections should be checked for correctness and the housing cover replaced Upon first power up the sensor may take up to fifteen minutes to stabilize At the initial application of power the unit will test all of the LED segments by di...

Page 30: ...ration and Modbus Communications Settings These allow the unit to operate with a wide variety of PLC and DCS Systems The following sections explain the available options and how they can be customized A flow diagram is included to help the user in understanding the process of reviewing and changing the available options Figure 19 NOTE If the unit was ordered without relays or Modbus communications...

Page 31: ...nually WhenComplete Reset Sensor Life ARGC Enabled N Y N User Menu Structure N Y ARGC Enabled Address Data Format Fi Enable Disable Fi Disable Fi Hi AlarmRelay Baud Rate Address Data Format Fi If HARTInstalled If HARTEnabled Y Turnon Gasfor 1 Minute N Y N Y Time OUT FAULT NO Y Hm Hm RM Am RM Am Baud Rate CH2 Modbus Channel 1 CH1 Modbus Channel 1 Am Am Am Enable HRT Am Am Am N Rm Hm Hm Hm Rm Rm Hm ...

Page 32: ...n by either En or dE being displayed respectively Apply and remove the magnet until the desired state is displayed After a few seconds the Latching Non Latching state of the relay is shown by either La or nL Apply and remove the magnet until the desired state is displayed After a few seconds the current Warning relay set point is displayed Apply and remove the magnet until the desired set point is...

Page 33: ...d remove the magnet until the desired data format is displayed The choices are 8 N 1 8n1 8 N 2 8n2 8 E 1 8E1 or 8 O 1 8O1 After a few seconds the current address for Modbus Channel 1 is displayed Apply and remove the magnet until the desired address is displayed Once the desired address is displayed wait 3 seconds and Fi will be displayed Apply and remove the magnet to return to the next level of ...

Page 34: ...d and the analog output is fixed at 1 5 mA The display will show the gas concentration level 3 13 1 Calibration Check Place the magnet over the GM logo on the cover of the S4000CH Remove the magnet when a flashing pair of bars Figure 20 appears on the display about ten seconds Apply the test gas to the sensor the value of the gas concentration will be indicated by the flashing display and should s...

Page 35: ...f sensor replacement 3 14 1 Calibration Procedure There are three methods for calibrating the S4000CH Manually with an RGC or with an ARGC NOTE If the RGC or ARGC is not installed the S4000CH calibration is identical to the S4000C NOTE If the Catalytic bead sensor is fitted with a splash guard calibration must be performed with the splash guard in place WARNING General Monitors recommends calibrat...

Page 36: ...to CC Figure 23 indicating that the calibration is complete Figure 23 Calibration Complete Mode Remove the gas and wait for the unit to return to normal operation The display will indicate a few percent full scale and then drop to 0 The unit is now calibrated and the new ZERO and SPAN values have been stored in the non volatile memory EEPROM NOTE The sensor life figure displayed is that calculated...

Page 37: ...Because sensor sensitivity is affected by factors other than the natural sensor degradation users must establish their own reference by resetting sensor life whenever these factors are at play Some examples of these factors are new sensor installations sensor replacement change of the target gas and changes in the access of gas to the sensor produced by the TGA RGC or splash guard If sensor life i...

Page 38: ...access locations They cover the sensor and allow a controlled flow of gas to it This allows calibration in high wind conditions and can be permanently attached to the sensor Since it is permanently attached it is useful for remote locations The calibrators use a constant pressure For calibration using the RGC or the High Temperature RGC refer to Section 3 14 1 Figure 24 Remote Gas Calibrator RGC P...

Page 39: ...ion at the sensor may be lower than that outside the ARGC since the meshed cylinder of the ARGC reduces airflow to the sensor Therefore when installing a sensor with an ARGC in a space with little air flow it is important to adjust the warning and alarm settings to a lower level NOTE The ARGC requires extra power Connect the ARGC 24 VDC at TB2 pin 10 Refer to Table 1 3 19 Calibration Using the ARG...

Page 40: ...he valve closes and the ARGC exposes the sensor to atmosphere the system measures the rate the gas leaves the sensor If it is slow the valve is sticking and an ARGC error is indicated Figure 26 Calibration Complete Mode The gas will be turned off and the unit will return to normal operation The display will indicate a few percent full scale and then drop to 0 The unit is now calibrated and the new...

Page 41: ...Health Safety Executive Component Approval No 1051U for use as a jointing compound on flameproof electrical enclosures This is available from General Monitors The neoprene rubber gasket if found dry should also be lubricated with Type P80 lubricant available from General Monitors P N 610 010 4 2 Storage The S4000CH Intelligent Sensor should be stored in a clean dry area and within the temperature ...

Page 42: ...as been left on for more than six minutes ACTION Remove gas if present Apply the magnet to the GM logo on the cover to clear the fault Attempt to calibrate 5 1 2 F3 Flash Checksum Error This fault indicates that the contents of the S4000CH s program memory have changed This usually occurs when powering the unit up after a lightning strike or large voltage transient on the power or signal lines to ...

Page 43: ...his fault occurs when an attempt to verify the setup calibration parameters just written to the EEPROM memory fails ACTION The unit must be returned to the factory or authorized service center for repair 5 1 7 F8 Failure to Complete Setup This fault occurs if the unit is left in setup mode for more than 6 minutes ACTION Exit setup mode Enter setup mode again if it is necessary to change any user s...

Page 44: ...ion does not remove the F12 error the operator must inspect the ARGC and make sure the gas tank is not empty the gas line is not leaking and the regulator is at the proper setting You can then apply the magnet over the display to clear the F12 error 5 2 General Monitors Offices Area Phone Email UNITED STATES 26776 Simpatica Circle Lake Forest CA 92630 Phone 1 949 581 4464 800 446 4872 Email info g...

Page 45: ...n Code 03 Read Holding Registers 3rd Starting Address Hi 00 Not Used by S4000CH 4th Starting Address Lo 00 FF Hex S4000CH Commands 5th No of Registers Hi 00 Not Used by S4000CH 6th No of Registers Lo 01 No of 16 Bit Registers 7th CRC Lo 00 FF Hex CRC Lo Byte 8th CRC Hi 00 FF Hex CRC Hi Byte NOTE Address 0 is reserved for broadcast mode and will not be supported at this time NOTE Start Address can ...

Page 46: ...FF Hex S4000CH Lo Byte Command Data 7th CRC Lo 00 FF Hex CRC Lo Byte 8th CRC Hi 00 FF Hex CRC Hi Byte 6 5 Function Codes Supported Function Code 03 Read Holding Registers is used to read status from the slave unit Function Code 04 allows multiple registers to be read You can use 3 or 4 for multiple reads Function Code 06 Preset Single Register is used to write a command to the slave unit 6 6 Excep...

Page 47: ...ds that differentiate it from a normal response 6 6 2 Exception Code Exception Code Field In a normal response the S4000CH returns data and status in the data field which was requested in the query from the master In an exception response the S4000CH returns an exception code in the data field which describes the S4000CH condition that caused the exception Below is a list of exception codes that a...

Page 48: ...m Settings Read or Change settings for the high alarm Bit 0 15 R W 000D 40014 Warn Settings Read or change settings for the low alarm Bit 0 15 R W 000E 40015 Com1 Addr Read or change settings for the Com1 Address Value 8 Bit R W 000F 40016 Com1 Baud Read or change settings for the Com1 Baud Rate Bit 0 7 R W 0010 40017 Com1 Data Format Read or change settings for the Com1 Data Format Bit 0 7 R W 00...

Page 49: ...0027 40040 Ch1 Overrun Errors Total overrun errors Value 16 Bit R 0028 40041 Ch1 Framing Errors Total Framing errors Value 16 Bit R 0029 40042 Ch1 Software Errors Total Software request errors Value 16 Bit R 002A 40043 New Sensor New Sensor Calibration Bit 1 0 R W 002B 40044 Clear CH1 Errors Clear Ch1 Hardware Errors Bit 0 W 002C 40045 Clear Ch1 Errors Clear Ch 1 Software Errors Bit 0 W 002D 40046...

Page 50: ...ar Software errors Bit 0 R W 007D 40126 Not used 007E 40127 6 8 S4000CH Command Register Details 6 8 1 Analog 00h A read returns a value which is proportional to the 0 20 mA output current The current is based on a 16 bit value The scaling is 0 65535 decimal which corresponds to 0 21 7 mA 6 8 2 Mode 01h A read returns the present mode of the S4000CH A write command changes the mode to the requeste...

Page 51: ... Read Low Supply Voltage 1 0x0002 Read Not used 0 0x0001 6 8 4 Unit Type 04h A read returns the decimal value 4004 This identifies the S4000CH 6 8 5 Software Revision 05h A read returns the software revision of the S4000CH in 2 ASCII characters 6 8 6 Status Block 06h A read returns a 6 byte message containing the Analog 2 bytes Mode 1 byte Status Error 2 bytes and Sensor Life 1 byte in that order ...

Page 52: ... Sensor 08 Calibration error 04 Low supply 02 NA 01 6 8 9 2 Lower 8 Bits for Sensor Life Sensor Life 0 100 6 8 10 Display 0x09h 0x0Ah The display is also present on the Modbus It is at address 0x09 and 0x0A The first address 0x09 contains the LED the decimal point location and the Most Significant Digit MSD The upper word represents the LED and decimal point They are defined as shown below The low...

Page 53: ...means it is normally De Energized The Alarm set point cannot be set below the Warn set point Factory default is 60 FS Latching De Energized Exception Returns an Exception Code 01 Illegal Function if an illegal write is requested Byte Function Bit Position Access High Not Used 15 MSB Read Not Used 14 Read Not Used 13 Read Not Used 12 Read Not Used 11 Read Not Used 10 Read Latching Non Latching 9 R ...

Page 54: ...t baud rate for Com1 A write command changes the baud rate to the requested values Valid settings are shown in the table below Factory default is 19 200 Baud Rate Value Val Hex Access 2400 24 18 Read Write 4800 48 30 Read Write 9600 96 60 Read Write 19 200 192 C0 Read Write Table 11 Com1 Baud Rate Exception If the baud rate is not in range an illegal data value 03 is returned 6 8 16 Com1 Data Form...

Page 55: ...A Analog Output Standard Modbus HART Default HART Modified Analog Output Start Up SU 4 4 4 4 Fault 0 0 3 5 1 25 HazardWatch 3 2 3 2 3 5 3 2 Cal Check 1 5 1 5 3 5 1 5 Calibrate 1 5 1 5 3 5 1 5 Gas 4 20 4 20 4 20 4 20 Over range 21 7 21 7 21 7 21 7 Negative drift 0 to 9 LEL 2 56 2 56 3 5 2 56 Table 13 Current Chart On HART equipped units the user must select the HART modified analog output in order ...

Page 56: ...at Exception If the data format is not in range an illegal data value 03 is returned To restore serial bus defaults Hold the reset input low and turn on the power Address factory default is 2 Baud rate factory default is 19 200 Format factory default is 8 N 1 6 8 20 Calibration Level 15h A read returns the current settings for the calibration level A write changes the calibration level that will b...

Page 57: ...C to turn on and off gas during a calibration or gas check The PLC would look at the MODE register and activate or deactivate a calibration gas control valve 6 8 25 1 Enable Sol 1Bh This function is a built in safety feature The solenoid must be enabled first before it can be activated This disables the remote cal function and enables the solenoid A 0 enables the remote calibration Normal and disa...

Page 58: ...Starting Address Errors 23h The counter is incremented for each address that does not equal the device address A read indicates the number of Starting Address Errors that occurred in the slave device The maximum count is 65535 and then the counter will rollover to zero and begin counting again 6 8 33 Number of Register Errors 24h A read indicates the Number of Register Errors that occurred in the ...

Page 59: ...ata will be saved Stored data may later be used to verify proper calibration NOTE All new installations should perform this calibration 6 8 41 Clear Hardware Errors 2Ch For clearing parity framing and overrun errors 6 8 42 Clear Communication Errors 2Dh 6 8 42 1 Event Logging Faults Whenever the fault word changes the time will be recorded The time of the fault will be saved The quantity of faults...

Page 60: ...30 Seconds Time Hi Seconds Time Hi Numeric value 0 65535 Timer Sec 31 Seconds Time Low Seconds Time Numeric value 0 65535 Timer sec 32 Real Time Clock Year Month Read Set year and month of RTC 2 Numeric Values 0 99 year 1 12 month Timer Struct 33 Real Time Clock Day Hour Read Set day and hour of RTC 2 Numeric Values 1 31 day 0 23 hour 34 Real Time Clock Minute Second Read Set minutes and seconds o...

Page 61: ...ntries Numeric value 0 65535 Alarm 41 Structure time Hi Hi byte year low byte month for alarm event log entries Numeric value 0 65535 Alarm 42 Structure time Mid Hi byte day low byte hour alarm event log entries Numeric value 0 65535 Alarm 43 Structure time Low Hi byte min low byte sec for alarm event log entries Numeric value 0 65535 Alarm 44 Reserved Reserved Numeric value 0 45 Reserved Reserved...

Page 62: ...tructure time Hi Hi byte year low byte month for event log entries Numeric value 0 65535 Maintenance 52 Structure time Mid Hi byte day low byte hour event log entries Numeric value 0 65535 Maintenance 53 Structure time Low Hi byte min low byte sec for event log entries Numeric value 0 65535 Maintenance 54 Maintenance code Cal check Numeric value 0 Maintenance 55 Reserved Reserved Numeric value 0 5...

Page 63: ...5 and then the counter will rollover to zero and begin counting again The total errors are an accumulation of the individual communication errors listed below 6 8 45 Bus Activity Rate 71h A read indicates the Bus Activity Rate in percent of this Slave s addressed node versus other addressed nodes Range of this value is in hex 0 64 which translates to decimal 0 100 6 8 46 Function Code Errors 72h A...

Page 64: ...35 and then the counter will rollover to zero and begin counting again 6 8 52 Overrun Errors 78h A read indicates the number of Hardware UART Overrun Errors that occurred in the slave device The maximum count is 65535 and then the counter will rollover to zero and begin counting again 6 8 53 Framing Errors 79h A read indicates the number of Hardware UART Framing Errors that occurred in the slave d...

Page 65: ...al Monitors for damages including but not limited to consequential damages arising out of or in connection with the performance of the product 7 2 Principle of Operation Many gases and vapors are combustible General Monitors uses a low temperature catalytic bead to detect the presence of combustible gases and vapors The catalytic bead converts the combustible materials to heat A change in heat is ...

Page 66: ...th 4 1 in 104 mm Weight 5 5 lbs 2 5 kg AL 14 0 lbs 6 4 kg SS Mounting Holes 5 0 inches 127mm center to center Housing Aluminum alloy 6061 T6 cover A356 T6 base or 316 SST 7 3 3 Electrical Specifications Input Voltage 24 VDC nominal 20 to 36 VDC 250 mA max Average Current No ARGC 24 V 200 mA including sensor all relays on 30 volts 175 mA including sensor all relays on 20 volts 228 mA including sens...

Page 67: ...ements Cable Requirements w out ARGC with relays 3 wire shielded cable Max Distance between S4000CH and power source 24 VDC nominal AWG Ohms 1K FEET METERS 12 1 588 4143 1263 14 2 525 2606 794 16 4 016 1638 499 18 6 385 1030 314 20 10 15 648 198 Table 16 24 VDC Cable Lengths with Relays Screw terminals only Cable Requirements w out ARGC w out Relays 3 wire shielded cable Max Distance between S4000...

Page 68: ... 10 15 157 48 Table 20 Sensor Cable Lengths European Union EU Approved Applications PSU noise and ripple voltage 1 0 Vpp max The customer supplied PSU must comply with IEC 1010 1 limiting current to 8 A under fault conditions in order to comply with CE Marking requirements 7 3 6 Environmental Specifications With remote junction box 10252 3 and 11159 2 sensor Operating Temperature Range CSA FM ATEX...

Page 69: ...iso Butylene 1 8 56 1 27 0 ml 45 0 ml 0 7 0 9 Carbon Monoxide 12 5 28 0 187 5 ml 312 5 ml 0 9 1 2 Dimethylamine 2 8 45 1 42 0 ml 70 0 ml 0 6 0 8 Ethane 3 0 30 1 45 0 ml 75 0 ml 0 8 1 1 Ethylene Oxide 3 0 44 0 45 0 ml 75 0 ml 1 0 1 3 Ethylene Ethene 2 7 28 1 40 5 ml 67 5 ml 0 8 1 1 Hydrogen 4 0 2 0 60 0 ml 100 0 ml 0 8 1 1 Methane 5 0 16 0 75 0 ml 125 0 ml 1 0 1 3 Propane 2 1 44 1 31 5 ml 52 5 ml 0...

Page 70: ... Butanone 1 4 72 1 0 8 76 µl 128 µl 0 6 0 8 Methyl Methacrylate 1 70 100 1 0 9 111 µl 186 µl 0 6 0 7 Methyl t Butyl Ether MTBE 1 5 88 2 0 7 109 µl 182 µl 0 6 0 8 Naphtha Petroleum Ether 1 1 86 2 0 6 96 µl 161 µl 0 6 0 8 Octane 1 0 114 2 0 7 99 µl 166 µl 0 5 0 6 Pentane 1 5 72 2 0 6 105 µl 176 µl 0 6 0 8 2 Propanol Isopropyl Alcohol 2 0 60 1 0 8 93 µl 156 µl 0 6 0 8 Propanol Propyl Alcohol 2 2 60 1...

Page 71: ...L General Purpose SST High Temp Sintered Steel Arrestor 10102 1 Simulator Sensor 7 6 2 Sensor Housing 10252 1 Sensor Housing 10252 3 Sensor Housing HT 7 6 3 Sensor Accessories 10041 1 Duct Mounting Plate 50061 1 Purafil Insert Assembly 7 6 4 Calibration Equipment 10543 1 3 Liter Calibration Chamber with 250μL Syringe 928 700 Dish for the 3 Liter Chamber 928 715 250μL syringe 1400276 1 Portable Pur...

Page 72: ...e Calibration Cup 925 026 Tubing 7 6 5 S4000CH Replacement Parts Check Factory for options 32461 1 2 3 4 Control Board Electronics 32451 1 2 Output Board Electronics 32441 1 Display Board Electronics 32424 1 Enclosure Cover Assembly with Window 31195 2 Enclosure Base Assembly 30060 1 Calibration Magnet 925 5007 Cover Assy O Ring 7 6 6 Recommended Spare Parts for One 1 Year 30060 1 Extra Calibratio...

Page 73: ...ave not been verified as part of a Model S4000CH system Model DC110 Eight Channel Readout Relay Display Module Factory Mutual Research Corporation has tested the Model S4000CH according to the criteria listed under the FMRC Approval Standards for Combustible Gas Detectors Class Numbers 6310 6320 FMRC has tested the Model S4000CH using the specifications listed in Section 7 3 This permits an operat...

Page 74: ...pose according to WEEE regulations For further General Monitors product WEEE disposal information please visit www MSAsafety com All other countries or states please dispose of in accordance with existing federal state and local environmental control regulations ADDENDUM Product Disposal Considerations ...

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