General Monitors S4000C User manual

Model S4000C
Intelligent Sensor for
Combustible Gas Detection
The information and technical data disclosed in
this document may be used and disseminated
only for the purposes and to the extent
specifically authorized in writing by General
Monitors.
Instruction Manual 0307
General Monitors reserves the right to change
published specifications and designs without
prior notice.
MANS4000C
Part No. MANS4000C
Revision G/03-07

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3.5 Terminal Connections................................................................................................................7
Table of Contents
TABLE OF FIGURES..................................................................................................................VI
TABLE OF TABLES...................................................................................................................VII
QUICK START GUIDE.................................................................................................................1
Mounting and Wiring...............................................................................................................................1
Tools Required...........................................................................................................................1
Terminal Connections.............................................................................................................................1
1.0 INTRODUCTION ....................................................................................................................1
1.1 Protection for Life.......................................................................................................................1
1.2 Special Warnings.......................................................................................................................1
1.3 System Integrity Verification ......................................................................................................1
2.0 PRODUCT DESCRIPTION.....................................................................................................3
2.1 General Description ...................................................................................................................3
3.0 INSTALLATION......................................................................................................................4
3.1 Receipt of Equipment.................................................................................................................4
3.2 Tools Required...........................................................................................................................4
3.3 Choosing Product Locations......................................................................................................4
3.3.1 Remote Mounting of the Sensor from the Electronics..................................................5
3.4 Mounting and Wiring..................................................................................................................5
3.5.1 Terminal Block TB1 – Sensor Connections..................................................................7
3.5.2 Terminal Block TB2 – Power and Signal Connections.................................................7
3.5.3 DC Power and Ground Connections.............................................................................8
3.5.4 Analog Signal Connections...........................................................................................9
3.5.5 Terminal Block TB3 – Relay Connections ..................................................................10
3.5.6 European Union (EU) Approved Applications.............................................................11
3.5.7 Cable Termination in the Non-Hazardous Area..........................................................11
3.6 Maintaining the X/P Integrity....................................................................................................12
4.0 OPERATION.........................................................................................................................13
4.1 Start-Up Checklist....................................................................................................................13
4.2 Start-Up....................................................................................................................................13
4.3 Relay Reset..............................................................................................................................13
4.4 User Selectable Options ..........................................................................................................14
4.4.1 Model S4000C User Menu Structure..........................................................................15
4.4.2 Calibration Level .........................................................................................................15
4.4.3 Warning Relay Settings ..............................................................................................16
4.4.4 Alarm Relay Settings...................................................................................................16
4.4.5 MODBUS Channel 1 Settings.....................................................................................17
4.4.6 MODBUS Channel 2 Settings.....................................................................................17
4.5 Gas Check Mode .....................................................................................................................18
4.5.1 Procedure for Checking the Calibration......................................................................18

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8.0 MODBUS INTERFACE ........................................................................................................26
4.6 Calibration................................................................................................................................18
4.6.1 Calibration Procedure .................................................................................................19
4.6.2 Aborting Calibration.....................................................................................................20
4.6.3 Adjustable Calibration Level .......................................................................................20
4.6.4 Remaining Sensor Life................................................................................................20
4.6.5 Initializing the Remaining Sensor Life.........................................................................20
4.7 Calibration Equipment..............................................................................................................21
4.7.1 Portable Purge Calibrator ...........................................................................................21
5.0 MAINTENANCE ...................................................................................................................22
5.1 General Maintenance...............................................................................................................22
5.2 Storage.....................................................................................................................................22
6.0 TROUBLESHOOTING .........................................................................................................23
6.1 Fault Codes & Their Remedies................................................................................................23
6.1.1 F2 Failed to Complete Calibration ..............................................................................23
6.1.2 F3 EEPROM Checksum Error....................................................................................23
6.1.3 F4 Sensor Error...........................................................................................................23
6.1.4 F5 Unused...................................................................................................................23
6.1.5 F6 Low Supply Voltage...............................................................................................24
6.1.6 F7 EEPROM Verification Failure ................................................................................24
6.1.7 F8 Failure to Complete Setup.....................................................................................24
6.1.8 F9 Gas Check Period Exceeded.................................................................................24
6.1.9 F10 Switch Error .........................................................................................................24
7.0 CUSTOMER SUPPORT.......................................................................................................25T
7.1 General Monitors’ Offices.........................................................................................................25
8.1 Baud Rate................................................................................................................................26
8.2 Data Format.............................................................................................................................26
8.3 MODBUS Read Status Protocol (Query/Response)................................................................26
8.3.1 MODBUS Read Query Message................................................................................26
8.3.2 MODBUS Read Response Message..........................................................................26
8.4 MODBUS Write Command Protocol (Query/Response) .........................................................27
8.4.1 MODBUS Write Query Message ................................................................................27
8.4.2 MODBUS Write Response Message..........................................................................27
8.5 Function Codes Supported ......................................................................................................27
8.6 Exception Responses and Exception Codes...........................................................................27
8.6.1 Exception Response...................................................................................................27
8.6.2 Exception Code...........................................................................................................28
8.7 S4000C Command Register Locations....................................................................................29
8.8 S4000C Command Register Details........................................................................................30
8.8.1 Analog.........................................................................................................................30
8.8.2 Mode...........................................................................................................................30
8.8.3 Status/Error.................................................................................................................30
8.8.4 Unit Type.....................................................................................................................31
8.8.5 Software Revision.......................................................................................................31
8.8.6 Status Block................................................................................................................31
8.8.7 Alarm Settings.............................................................................................................31

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9.5 Sensitivities to Other Gases.....................................................................................................39
8.8.8 Warn Settings..............................................................................................................32
8.8.9 Com1 Address ............................................................................................................32
8.8.10 Com1 Baud Rate.........................................................................................................33
8.8.11 Com1 Data Format......................................................................................................33
8.8.12 Com2 Address ............................................................................................................33
8.8.13 Com2 Baud Rate.........................................................................................................33
8.8.14 Com2 Data Format......................................................................................................34
8.8.15 Cal Level.....................................................................................................................34
8.8.16 Reset Alarms...............................................................................................................34
8.8.17 Sensor Life..................................................................................................................34
8.8.18 HazardWatch (Co – Calibration Output).....................................................................34
8.8.19 Total Receive Errors ...................................................................................................34
8.8.20 Bus Activity Rate %.....................................................................................................34
8.8.21 Function Code Errors..................................................................................................35
8.8.22 Starting Address Errors...............................................................................................35
8.8.23 Number of Register Errors..........................................................................................35
8.8.24 RXD CRC Hi Errors.....................................................................................................35
8.8.25 RXD CRC Low Errors .................................................................................................35
8.8.26 Clear Comm Errors.....................................................................................................35
9.0 APPENDIX............................................................................................................................36
9.1 Warranty...................................................................................................................................36
9.2 Principle of Operation...............................................................................................................36
9.3 Specifications...........................................................................................................................37
9.3.1 System Specifications.................................................................................................37
9.3.2 Mechanical Specifications...........................................................................................37
9.3.3 Electrical Specifications..............................................................................................37
9.3.4 Environmental Specifications......................................................................................38
9.4 Approvals.................................................................................................................................39
9.6 Spare Parts and Accessories...................................................................................................41
9.6.1 Sensors.......................................................................................................................41
9.6.2 Sensor Housing...........................................................................................................41
9.6.3 Sensor Accessories ....................................................................................................41
9.6.4 Calibration Equipment.................................................................................................41
9.6.5 Intelligent Transmitter (S4000C) Replacement Parts.................................................42
9.6.6 Recommended Spare Parts for One (1) Year ............................................................42
9.7 FMRC Approval........................................................................................................................43

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Table of Figures
Figure 1: Outline and Mounting Dimensions..........................................................................................................1
Figure 2: Spring Type Terminal Block Operation...................................................................................................2
Figure 3: Screw Type Terminal Block Operation....................................................................................................2
Figure 4: Model S4000C Intelligent Sensor............................................................................................................3
Figure 5: Outline and Mounting Dimensions..........................................................................................................6
Figure 6: Spring Type Terminal Block Operation...................................................................................................8
Figure 7: Screw Type Terminal Block Operation....................................................................................................8
Figure 8: Wire Strip Length.....................................................................................................................................8
Figure 9: Relay Protection for DC and AC Loads.................................................................................................11
Figure 10: Relay Reset.........................................................................................................................................14
Figure 11: User Menu Structure...........................................................................................................................15
Figure 12: Calibration Check................................................................................................................................18
Figure 13: Automatic Calibration Mode................................................................................................................19
Figure 14: Calibration In Progress Mode..............................................................................................................19
Figure 15: Calibration Complete Mode.................................................................................................................19

S4000C
Table of Tables
Table 1: TB2 Power and Signal Connections.........................................................................................................7
Table 2: Ground or Common Connections.............................................................................................................9
Table 3: Power Connections ..................................................................................................................................9
Table 4: Analog Signal Connections ....................................................................................................................10
Table 5: Alarm Relay Connections.......................................................................................................................10
Table 6: Warn Relay Connections........................................................................................................................10
Table 7: Fault Relay Connections ........................................................................................................................10
Table 8: GM Locations..........................................................................................................................................25
Table 9: Data Format............................................................................................................................................26
Table 10: Exception Codes ..................................................................................................................................28
Table 11: Command Register Locations..............................................................................................................29
Table 12: Command Register Locations Cont. ....................................................................................................30
Table 13: Com1 Baud Rate..................................................................................................................................33
Table 14: Com1 Data Format...............................................................................................................................33
Table 15: Com2 Baud Rate..................................................................................................................................33
Table 16: Com2 Data Format...............................................................................................................................34
Table 17: 24VDC Cable Lengths..........................................................................................................................38
Table 18: Analog Output Cable Lengths ..............................................................................................................38
Table 19: Sensor Cable Lengths..........................................................................................................................38
Table 20: Chemical List from1994 NFPA.............................................................................................................40
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S4000C
Quick Start Guide
Mounting and Wiring
Tools Required
1. “5mm” Allen head wrench to remove enclosure lid (included with gas detector).
2. Flat-head screwdriver maximum 3/16” (5 mm) width for terminal block connections
(included with gas detector).
3. Adjustable wrench for conduit or cable gland connections (not included).
It is not necessary to seal the Model S4000C housing to maintain its explosion-proof integrity;
however, conduit runs containing wires attached to the Model S4000C’s relay contacts must be
sealed.
Information on Class I location seals can be found in the NEC, Article 501-5.
Figure 1: Outline and Mounting Dimensions
Terminal Connections
The terminal blocks (TB) are located inside the housing and can be accessed by removing the
cover. A label on the inside of the housing cover provides details of all the terminal
connections.
WARNING: Do not connect +24VDC to TB1. Damage to the electronics, or sensor may
result.
It is recommended that a three-wire (red, black, white) shielded cable be used for making
power and output signal connections on the Model S4000C. The Spring Type terminal block
accepts 14 AWG to 20 AWG and the Screw Type terminal block accepts 12 AWG to 18 AWG
stranded or solid wire. Each wire should be stripped before wiring the Model S4000C Intelligent
Sensor. To connect wiring to the Spring Type terminal block, insert a screwdriver into the
orange tab and press down (Figure 2), opening the terminal. Insert the wire into the terminal
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and release the orange tab, clamping the wire in the terminal. Check the hold of the wire by
GENTLY tugging it to ensure it is locked in.
To connect wiring to the Screw Type terminal block, (Figure 3) use a screwdriver to loosen the
top screw counter clock wise. 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 2: Spring Type Terminal Block Operation
Figure 3: Screw Type Terminal Block Operation
NOTE: Power must remain disconnected until all other wiring connections have been made.
The maximum distance between the Model S4000C and the power supply is 3430 feet or 1040
meters (each cable run should be as short as possible). See Section 9.3.3 for cable length
specifications. Connect +24VDC to TB2, position 9. Connect the ground or common to TB2,
position 8.
The instrument is now ready to operate. Please consult the manual for more information on the
instrument’s many features.
NOTE: If you have any problems in the set-up or testing of the detector, please refer to the
“Trouble Shooting Section”, or call the factory direct.

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Worldwide service is available by calling:
Lake Forest, California
(24 hr. service) Toll Free: [phone]
Phone: [phone]
Fax: [phone]
Houston, Texas Phone: [phone]
Fax: [phone]
Ireland Phone: [phone]
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Singapore Phone: [phone]
Fax: [phone]
United Arab Emirates Phone: [phone]
Fax: [phone]
United Kingdom Phone: [phone]
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