SMC Sierra Monitor 5000 Sentry Instruction Manual
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SMC Sierra Monitor 5000 Sentry Instruction Manual

Gas monitoring system
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MODEL 5000
S E N T R Y
GAS MONITORING SYSTEM
Version 6
APPLICABILITY & EFFECTIVITY
Effective for all Sentry systems manufactured after September 1, 1995.
Instruction Manual Part Number T12001-A1

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Summary of Contents for SMC Sierra Monitor 5000 Sentry

  • Page 1 MODEL 5000 S E N T R Y GAS MONITORING SYSTEM Version 6 APPLICABILITY & EFFECTIVITY Effective for all Sentry systems manufactured after September 1, 1995. Instruction Manual Part Number T12001-A1...
  • Page 2 MODBUS firmware itself. *FMRC: Factory Mutual Research Corporation Sentry Instruction Manual - Version 6 FMRC APPROVAL Sentry Model 5000 Gas Monitoring System Two Channel Controller Four Channel Controller Eight Channel Controller Rack Mount Configuration...

  • Page 3: Table Of Contents

    sierra monitor corporation PRODUCT DESCRIPTION ... 1 GENERAL... 1 CONTROLLER ... 1 1.2.1 ENHANCEMENT PACKAGE ... 1 SENSOR MODULES ... 1 INTERCONNECT WIRING ... 2 DATA TRANSMISSION ... 2 POWER REQUIREMENTS... 2 CAUTIONS & WARNINGS... 15 INTRODUCTION ... 15 CONTROLLER ... 15 WIRING ...
  • Page 4 sierra monitor corporation MAINTENANCE ...53 MAINTENANCE REQUIREMENTS...53 SERVICE...55 OVERVIEW ...55 7.1.1 GENERAL ...55 7.1.2 INSTALLATION INSPECTION...55 7.1.3 DATA COLLECTION...55 7.1.4 INSPECTION AND TROUBLESHOOTING GUIDE...55 CONTROLLER ...58 7.2.1 MECHANICAL/FUNCTIONAL DESCRIPTION ...58 7.2.2 ELECTRICAL DESCRIPTION...58 COMMUNICATIONS...63 7.3.1 DESCRIPTION OF COMMUNICATIONS ...63 7.3.2 WARNING AND ERROR MESSAGES ...64 7.3.3 WARM-UP TIMERS...64...
  • Page 5 sierra monitor corporation APPENDICES... 83 APPENDIX A - SPECIFICATIONS ... 85 APPENDIX B - LIMITED WARRANTY ... 89 APPENDIX C - ACCESS CONTROL BY USER CODE... 91 8.3.1 INTRODUCTION ... 91 8.3.2 DEFINITIONS... 91 8.3.3 USER CODE INSTALLATION... 91 8.3.4 USER CODE REMOVAL...

  • Page 7: Product Description

    1.1 GENERAL The Sentry 5000 is a fixed installation gas monitoring system designed for continuous operation in open or confined areas. The system is comprised of a controller and up to eight sensor modules. The sensor modules are...

  • Page 8: Interconnect Wiring

    sierra monitor corporation Sentry Instruction Manual - Version 6 1.4 INTERCONNECT WIRING Not supplied with Sentry, but necessary to the installation and operation is the three conductor wiring which connects the controller to the modules. Before this wiring is installed it is important to read and understand the installation instructions (Chapter 3) because significant economies can be realized by connecting more than one module onto a common wiring run.
  • Page 9 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-1 Front Panel Display PRODUCT DESCRIPTION Page: 3...
  • Page 10 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-2 Rack Mount Configuration - Outline PRODUCT DESCRIPTION Page: 4...
  • Page 11 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-3 NEMA-4 Configuration - Outline PRODUCT DESCRIPTION Page: 5...
  • Page 12 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-4 NEMA-7 Configuration - Outline PRODUCT DESCRIPTION Page: 6...
  • Page 13 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-5 Panel Mount Configuration Outline PRODUCT DESCRIPTION Page: 7...
  • Page 14 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-6 Wall Mount Configuration Outline PRODUCT DESCRIPTION Page: 8...
  • Page 15 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-7 Hydrogen Sulfide Module - Outline PRODUCT DESCRIPTION Page: 9...
  • Page 16 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-8 Combustible Sensor - Outline PRODUCT DESCRIPTION Page: 10...
  • Page 17 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-9 Oxygen and Toxic Sensor Modules - Outline PRODUCT DESCRIPTION Page: 11...
  • Page 18 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-10 Model 5100-05 Hydrogen Sulfide Sensor Module (FMRC Approved) - Outline PRODUCT DESCRIPTION Page: 12...
  • Page 19 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 1-11 Model 5100-25 Ammonia Sensor Module - Outline PRODUCT DESCRIPTION Page: 13...

  • Page 21: Cautions & Warnings

    sierra monitor corporation 2.1 INTRODUCTION Although the Sentry system is designed and constructed for installation and operation in industrial applications including "hostile" environments, caution should be taken to insure that the installation is made in compliance with this instruction manual and that certain procedures and conditions are avoided.

  • Page 23: Installation

    sierra monitor corporation NOTE All systems are factory are pre-configured and calibrated. All sensors are tagged to indicate the controller (alpha) and the sensor module number (1 - 8). Identify all components of the system during unpacking and install using the factory configuration. The system will power up in a calibrated and fully functional condition.

  • Page 24: Sensor Module Installation

    sierra monitor corporation Install conduit as required. Provide for splice boxes where multiple modules will be wired to a single run. Pull 3 (typical: white, black, green) conductors of the correct gauge wire from the controller to each splice box and from the respective splice box to each planned module location.

  • Page 25: Controller Installation

    3.5 CONTROLLER INSTALLATION 3.5.1 CONTROLLER CONFIGURATIONS Table 3-5 lists the number of sensor modules which can be operated on each controller model. Model Controller Capacity 5000-02 2 Sensor Modules 5000-04 4 Sensor Modules 5000-08 8 Sensor Modules Table 3-5...

  • Page 26: Alarm Device Installation

    sierra monitor corporation Connect the necessary remote audible and visual alarms or other process control equipment to the "HIGH", "LOW" "TROUBLE" the connector panel. The Double Pole/Double Throw connections are marked to indicate Normally Open , Normally Closed (N/O) (N/C) terminals for each pole.

  • Page 27: Power Up

    sierra monitor corporation 3.5.6 POWER UP Systems shipped complete from the factory are pre- configured and calibrated. When power is turned on the power light will start flashing and the alpha-numeric display will indicate "SYSTEM WARM-UP" "PLEASE WAIT (where MM:SS is a five minute count-down MM:SS"...
  • Page 28 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-2 Controller Mounting Options Page: 22...
  • Page 29 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-3 Sensor Module Mounting Page: 23...
  • Page 30 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-4 Wiring Options Page: 24...
  • Page 31 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-5 Typical Splice Box Wiring Page: 25...
  • Page 32 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-6 Sensor Module Cross Section Page: 26...
  • Page 33 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-7 Sensor Module Connector Detail Page: 27...
  • Page 34 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-8 Sensor Module Top Plate Detail - Typical Page: 28...
  • Page 35 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-9 Controller Connector Panel - Rack Configuration Page: 29...
  • Page 36 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-10 Controller Connector Panel - NEMA-4X Configuration Page: 30...
  • Page 37 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 3-11 Typical Alarm Wiring Configuration Page: 31...

  • Page 39: Configuration Procedure

    sierra monitor corporation 4.1 INTRODUCTION Sentry is operated via the seven keys on the front panel. Operation includes initial set-up, periodic calibration, recall of history, and changes to configuration. Certain procedure and message conventions are used to provide consistency. A knowledge of these conventions will aid in understanding of the set-up and operation steps.
  • Page 40 sierra monitor corporation MODULE LOCATION ADDRESS Module Address Location Sentry Channel Low Alarm High Alarm Latch L?/H? Factors Sensor Serial Number Sentry Instruction Manual - Version 6 SENTRY HIGH CHANNEL TYPE Figure 4-1 System Configuration Worksheet NOTES Dip switch setting for each sensor module Describe the physical location of the module Log the channel number to which the module is wired Log the name of the gas which is to be detected...

  • Page 41: Configuration Instructions

    sierra monitor corporation 4.3 CONFIGURATION INSTRUCTIONS Sentry controllers which are components of complete systems are factory configured and generally do not require changes prior to being placed in service. Sentry controllers which have not been factory configured can be placed into operation with default values for all configuration parameters by using the diagnostic code “0021”...

  • Page 42: Table 4-1 Display Conditions

    >. TEST ALARMS key once; display key. Sentry ENTER CONFIGURATION PROCEDURE Page: 36 number, software level, MODEL 5000 VERS 6.3 8 CH 951234 RELAYS PASSIVE TEST LOW ALARMS RELAYS PASSIVE TEST HIGH ALARMS RELAYS PASSIVE TEST TROUBLE ALARM X X X X X X X X X X X...

  • Page 43: Sentry Menu

    sierra monitor corporation 4.5 SENTRY MENU Table 4-2 describes the primary activities that can be accessed via the Sentry keyboard. Each activity which involves sub- menu selection is identified by an asterisk Menu selections which refer to printer are standard in eight channel systems, optional in two and four channel systems.

  • Page 44: Reset Key

    sierra monitor corporation 4.5.2.5 SET DATE/TIME PRESS ENTER TO SET DATE & TIME Set the Sentry clock in the same manner as any digital clock is set. The format is MM/DD HH:MM, with the hours set in military time (24 hours). If a user code has been set-up it will be required prior to changing the clock.

  • Page 45: Mode Key - Other

    sierra monitor corporation 4.6 SET USER CODE PRESS ENTER TO SET USER CODE To avoid unauthorized access to the configuration activity the USER CODE should be set as soon as the Sentry has been put on line. User codes are described in Section 8.3. Special diagnostic routines, also accessible via the user code, are describe in the same section.
  • Page 46 sierra monitor corporation 4.6.2.2 CHECK CALIB PRESS ENTER T O: CHECK CALIB The present calibration parameters can be check by successive presses of the key. These include the ENTER gas type, full scale, concentration of calibration gas, the number of days between calibrations and the status of global calibrate.
  • Page 47 sierra monitor corporation Ts = TEST R = RESET M = MODE T = TIME RESET KEY Reset Alarms Reset System Reset History TIME KEY Check History Printer History Print System Print Status Set Date & Time TEST KEY Test System Ts E Test Alarms Ts Ts E...
  • Page 48 sierra monitor corporation OPERATE MODE RESET RESET ALARMS RESET RESET SYSTEM RESET RESET HISTORY RESET Sentry Instruction Manual - Version 6 ENTER ALARMS RESET ENTER SYSTEM RESET ENTER CODE? VALID ACCESS DENIED RESET HISTORY RETURN TO OPERATE MODE Figure 4-3 Sentry Reset Key Flow Chart CONFIGURATION PROCEDURE Page: 42...
  • Page 49 sierra monitor corporation OPERATE MODE TEST TEST SYSTEM TEST TEST ALARMS TEST Sentry Instruction Manual - Version 6 ENTER ENTER CODE? VALID ACTIVE LOW ALARM ACTIVE HIGH ALARM ACTIVE ACCESS DENIED TROUBLE RETURN TO OPERATE MODE Figure 4-4 Sentry Test Key Flow Chart CONFIGURATION PROCEDURE Page: 43 SYSTEM TEST...
  • Page 50 sierra monitor corporation OPERATE MODE TIME CHECK HISTORY ENTER TIME HISTORY ENTER REPORT TIME SYSTEM ENTER REPORT TIME STATUS ENTER REPORT TIME SET DATE & ENTER TIME TIME ACCESS DENIED Sentry Instruction Manual - Version 6 REPORT REPORT COMPLETE REPORT REPORT COMPLETE REPORT...
  • Page 51 sierra monitor corporation OPERATE MODE MODE CALIB OR ENTER CHANGE MODE SELECT SCAN ENTER MODE CHECK CALIB ENTER MODE CHECK MODULE ENTER MODE CHECK PRINTER ENTER MODE Sentry Instruction Manual - Version 6 CODE VALID ENTERS CHANGE MENU (MODE KEY ACTIVE)) CONTINUOUS SAFE SCAN...
  • Page 52 sierra monitor corporation OPERATE MODE MODE CALIB OR CHANGE ENTER CODE VALID READ SET USER CODE INSTRUCTIONS PRINT/ MODBUS ACCESS DENIED Sentry Instruction Manual - Version 6 CALIBRATE ** ENTER MODE CHANGE ENTER CALIBRATE MODE CHANGE ENTER MODULE MODE ENTER MODE CHANGE ENTER...

  • Page 53: Calibration

    sierra monitor corporation 5.1 SENTRY CALIBRATION - AN OVERVIEW Calibration is a simple three step process: Initiate calibration via the controller keyboard. Apply zero gas (if required) and then span gas to the sensors. Close the calibration via the controller keyboard. Calibration parameters are configured via the CHANGE CALIB activity and are saved by Sentry for future calibrations.

  • Page 54: Calibration Parameters

    sierra monitor corporation 5.2.2 CALIBRATION PARAMETERS Use the menu to configure calibration CHANGE CALIB parameters as follows: Calibration parameters remain in Sentry memory until changed by the operator, they do not require initiation at every calibration Step Activity Select menu CHANGE CALIB key to select MODE...
  • Page 55 sierra monitor corporation 5.3.1.1 GLOBAL CALIBRATION Proceed with the following steps to perform Global Calibration. Step Activity Begin value read. ZERO Press to start the controller recording the ENTER zero signal value for all modules of the selected gas type. Complete value read.
  • Page 56 sierra monitor corporation 5.3.1.2 LOCAL CALIBRATION Proceed with the following steps to perform Local Calibration Step Activity Apply gas to ZERO SPAN each sensor. Apply zero and span calibration gas to each sensor for which calibration is required. (Sensors which are not exposed will be reported as "Not Calibrated"...

  • Page 57: Calibration Gas Delivery Methods

    sierra monitor corporation 5.3.2 CALIBRATION GAS DELIVERY METHODS Calibration gas is can be delivered to the sensors via the following delivery devices: Model 5358-00: Calibration Adapter - used with portable calibrators. - See Figure 5-1 Model 5360-00: Calibration Gas Delivery fitting - permanently installed fitting which allows tubing to be run to a convenient delivery location 5.3.3 SENSOR EXPOSURE TO GAS...

  • Page 59: Maintenance

    sierra monitor corporation 6.1 MAINTENANCE REQUIREMENTS The following are the manufacturer’s recommendations for periodic maintenance of the Sentry system: : All sensors should be calibrated at a CALIBRATION minimum of every 90 days. NOTE FMRC approved combustible gas sensors are required to be calibrated every 90 days.

  • Page 61: Service

    sierra monitor corporation 7.1 OVERVIEW 7.1.1 GENERAL This section provides service information for Sentry systems which have software version 6.0 and above The section is intended for use by a qualified field technician. Sierra Monitor sales and technical staff are available to assist by telephone at (408) 262-6611, during normal west coast working hours.

  • Page 62: Operator Action

    sierra monitor corporation OPERATOR ACTION RESULT CORRECT, Incorrect POWER LIGHT FLASHING TURN SYSTEM ON Power light solid Power light off RESET/RESET/ENTER POWER LIGHT SOLID Power light flashing & Top Display = “----" Top display = E1 Top display = E2 Top display blank BOTTOM DISPLAY = "SYSTEM WARM-UP...

  • Page 63: Troubleshooting Guide

    sierra monitor corporation Symptom CONTROLLER Top Display: wrong characters displaying 8888 or Blank Bottom Display blank Diagnostic voltages displayed are more than 10% different from manual Keyboard: Wrong action based on key press Alarms intermittent or false AC fuse blows Modules not recognized MODULES Module not recognized...

  • Page 64: Controller

    sierra monitor corporation 7.2 CONTROLLER 7.2.1 MECHANICAL/FUNCTIONAL DESCRIPTION The controller consists of four sub assemblies. Figure 7-1. 7.2.1.1 CONNECTOR PANEL The Back Panel contains all the connectors for providing system power, powering and communicating with the modules, operating alarm devices and communicating with a printer.
  • Page 65 sierra monitor corporation Action: check fuse F2 on power supply board. If power supply jumpers have been cut, cold start requires 110 VAC. 7.2.2.2 POWER SUPPLY ADJUSTMENTS The +24 volts can be measured at TP1 or TP2 (Test Point 1 or 2) with respect to ground (GT1).
  • Page 66 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 7-1 Controller Exploded View SERVICE Page: 60...
  • Page 67 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 7-2 Control Board Component Locator SERVICE Page: 61...
  • Page 68 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 7-3 Power Supply Component Locator SERVICE Page: 62...

  • Page 69: Communications

    sierra monitor corporation 7.3 COMMUNICATIONS 7.3.1 DESCRIPTION OF COMMUNICATIONS The Sentry controller scans each channel in turn taking less than one second to scan all channels. channel: A "reset" signal is sent out to clear all module communications. An address (which is a module number) is sent out and the controller waits for a response.

  • Page 70: Warning And Error Messages

    sierra monitor corporation 7.3.2 WARNING AND ERROR MESSAGES 7.3.2.1 SYSTEM ERRORS If Sentry cannot operate the basic computer functions one of the System Errors listed in Table 7-1 will display. These failures indicate internal controller problems which are most likely to require board level repairs by the factory.

  • Page 71: Diagnostic Report

    sierra monitor corporation 7.3.6 DIAGNOSTIC REPORT A Diagnostic report can be printed using diagnostic codes 0008 or 0010. Figure 7-4 is a typical report.. ID:A 11/20 15:16 S1= +0.376 BV= +2.021 BI= 0.323 ST= +0.284 MV= +19.0 S2= +1.20 HV= +0.920 HI= +0.975 ST= +0.009 MV= +19.4...

  • Page 72: Hydrogen Sulfide Module (5100-01)

    sierra monitor corporation 7.4 HYDROGEN SULFIDE MODULE (5100-01) 7.4.1 DESCRIPTION The Hydrogen Sulfide Sensor Module includes the sensor and electronic assembly installed in an explosion proof housing. The sensor screws into one hub of the enclosure and plugs into the bottom electronics card via a six pin connector.

  • Page 73: Sensor Replacement

    sierra monitor corporation To adjust the sensitivity apply 20 ppm hydrogen sulfide for five minutes for full stabilization. (Check that the voltage drops by at least .3 volts during this time.) Adjust the signal out value to .6 VDC using the range adjust potentiometer.

  • Page 74: Table 7-4 Heater Voltage And Current Settings

    sierra monitor corporation Heater Heater Voltage Current 2.50 3.32. 2.51 3.32 2.52 3.33 2.53 3.34 2.54 3.34 2.55 3.35 2.56 3.36 2.57 3.36 2.58 3.37 2.59 3.38 2.60 3.38 2.61 3.39 2.62 3.40 2.63 3.41 2.64 3.41 2.65 3.42 2.66 3.43 2.67 3.43...

  • Page 75: Combustible Gas Sensor Module (5100-02)

    sierra monitor corporation COMBUSTIBLE GAS SENSOR MODULE (5100-02) 7.5.1 DESCRIPTION The Combustible Gas Module includes the sensor and electronic assembly installed in an explosion proof housing. The sensor screws into one hub of the enclosure and plugs into the bottom electronics card via a six pin connector.

  • Page 76: Sensor Replacement

    sierra monitor corporation Using a Sierra Monitor Model 1200-26 Gas Calibrator with a Sierra Monitor Model 5358-00 calibration adapter, or Model 5360 Gas Delivery Fitting. Apply the calibration gas at a flow rate of 100 cc/min. until the signal out voltage stops changing (approx.

  • Page 77: Combustible Gas Scaling Factors

    sierra monitor corporation 7.5.5 COMBUSTIBLE GAS SCALING FACTORS For combustible gas monitoring, a calibration standard of Methane or Propane my be used in conjunction with scaling factors to cause Sentry concentration display and alarm function in %LEL scale of another gas as follows: METHANE FACTOR Acetaldehyde...

  • Page 78: Oxygen Module (5100-03)

    sierra monitor corporation 7.6 OXYGEN MODULE (5100-03) 7.6.1 DESCRIPTION The Oxygen Module includes the assembly installed in an explosion proof housing and the electrochemical sensor connected to one hub of the enclosure. Cabling from the controller connects to a three pin spring loaded terminal strip.
  • Page 79 sierra monitor corporation Unscrew the old sensor from the conduit hub, screw in the new sensor and connect the wiring harness to the transmitter electronics. Replace the transmitter into the enclosure, make signal adjustments as described above, and replace the enclosure cover. After the sensor is installed: Update "new sensor"...

  • Page 80: Carbon Monoxide Module (5100-04)

    sierra monitor corporation 7.7 CARBON MONOXIDE MODULE (5100-04) 7.7.1 DESCRIPTION The Carbon Monoxide Module includes the sensor and electronic assembly installed in an explosion proof housing. The sensor screws into one hub of the enclosure and plugs into the bottom electronics card via a six pin connector.
  • Page 81 sierra monitor corporation If sensor replacement is necessary remove the electronics from the housing and unplug the old sensor from the bottom board, remove it from the enclosure hub and reverse the procedure to install the new sensor. After the sensor is installed: Allow one hour of stabilization of the new sensor.

  • Page 82: Hydrogen Sulfide Module (5100-05)

    sierra monitor corporation 7.8 HYDROGEN SULFIDE MODULE (5100-05) 7.8.1 DESCRIPTION Model 5100-05 Hydrogen Sulfide Sensor Module includes a sensor assembly and electronic assembly installed in an explosion proof housing. The sensor assembly includes a reuseable housing and disposable electrochemical sensor. assembly screws into one hub of the sensor module enclosure and plugs into the bottom electronics card via a six pin connector.
  • Page 83 sierra monitor corporation Confirm that system power has been removed. Remove the transmitter electronics board from the main housing and unplug the sensor harness from the transmitter electronics. Unscrew the sensor housing from the bottom of the enclosure Hold the sensor assembly so that the harness faces down and the sensor faces Unscrew and remove the round section of the housing from the hex...

  • Page 84: Toxic Gas Sensor Module

    sierra monitor corporation 7.9 TOXIC GAS SENSOR MODULE 7.9.1 DESCRIPTION Toxic Gas Sensor Modules include the following models and default ranges: 5100-06 Chlorine -10 PPM 5100-07 Hydrogen - 2000 PPM 5100-12 Nitrogen Dioxide - 20 PPM 5100-13 Carbon Monoxide, High Range - 1,000 PPM 5100-10 Sulfur Dioxide - 100 PPM...

  • Page 85: Sensor Failure

    sierra monitor corporation message for toxic gas SENSOR FAILURE sensors does not indicate a specific failure of the sensor but indicates that the sensor is not correctly connected to the electronics. If this message appears check that the sensor harness is correctly installed to the connector on the bottom electronics board.
  • Page 86 sierra monitor corporation Apply span gas. Adjust the gain potentiometer until TP10 = correct value as described above. To increase voltage at TP10 turn the gain potentiometer counter clockwise. Remove system power and re-install the sensor and transmitter in the enclosure. Restore power and calibrate.

  • Page 87: Ammonia Sensor Module (5100-25)

    sierra monitor corporation 7.10 AMMONIA SENSOR MODULE (5100-25) 7.10.1 DESCRIPTION The Ammonia Sensor Module includes a sensor assembly and electronic assembly installed in an explosion proof housing. The sensor assembly includes a rechargeable electrochemical sensor. The assembly screws into one hub of the sensor module enclosure and plugs into the bottom electronics card via a six pin connector.
  • Page 88 sierra monitor corporation message for ammonia sensors does SENSOR FAILURE not indicate a specific failure of the sensor but indicates that the sensor is not correctly connected to the electronics. If this message appears check that the sensor harness is correctly installed to the connector on the bottom electronics board.

  • Page 89: Appendices

    sierra monitor corporation Sentry Instruction Manual - Version 6 8. APPENDICES APPENDIX A - SPECIFICATIONS Page: 83...

  • Page 91: Appendix A - Specifications

    ANALOG OUTPUTS Eight 4-20 mA, channel value (Model 4314-01) Loop Resistance max. 800 Ohms NUMBER OF CHANNELS 5000-02: Two channels, upgradeable to four or eight 5000-04: Four channels, upgradeable to eight 5000-08: Eight channels PRINTER INTERFACE Standard on 5000-08, option on -02 & -04...
  • Page 92 sierra monitor corporation C. PERFORMANCE Combustible Gas (5100-02) Range: 0 - 99% Lower Explosive Limit. Operating Temperature -40 F to 158 Relative Humidity 5 - 99% RH Accuracy: +/- 3% of Full Scale or +/- 10% of Applied Concentration Response: Step to 50% within 10 seconds Recover to 10% within 45 seconds Calibration Frequency...

  • Page 93: Table 8-1 Toxic Sensor Cross Sensitivity

    sierra monitor corporation Nitric Oxide (5100-19) Range: Factory 20 PPM, Max 100 PPM Operating Temperature 4 F to 122 Relative Humidity 15 - 99% RH Response: <15 seconds to 90% indication Calibration Frequency 90 Days, Recommended Zero Drift: Less than 2% per month Typical Life: 3 years in normal service Warranty:...

  • Page 95: Appendix B - Limited Warranty

    sierra monitor corporation Sentry Instruction Manual - Version 6 8.2 APPENDIX B - LIMITED WARRANTY SIERRA MONITOR CORPORATION warrants its products to be free from defects in workmanship or material under normal use and service for two years after date of shipment. SMC will repair or replace without charge any equipment found to be defective during the warranty period.

  • Page 97: Appendix C - Access Control By User Code

    sierra monitor corporation 8.3 APPENDIX C - ACCESS CONTROL BY USER CODE 8.3.1 INTRODUCTION Certain critical activities which can be accessed from the keypad are initially unrestricted. initiated at any time so that these activities are protected from unauthorized access. 8.3.2 DEFINITIONS : Single digit number between 1 and 8.

  • Page 98: Lost Entry Code

    sierra monitor corporation 8.3.6 LOST ENTRY CODE If the Entry code is misplaced it will be necessary to activity and delete all codes ENTER "CALIB/CHANGE" as described above. To enter the activity: Turn Sentry off and then on to start the warm- Press key three times to RESET...

  • Page 99: Appendix D: - Model Numbers & Parts List

    8.4 APPENDIX D: - MODEL NUMBERS & PARTS LIST 8.4.1 CONTROLLER ITEMS Controllers 5000-02 5000-04 5000-08 5389-50 Output Options 4314-01 5392-00 Mounting Options 4304-03 4304-04 5331-00 5380-00 5381-00 5382-00 5383-00 5395-00 Controller Accessories 4301-10 5332-00 5346-03 5346-04...

  • Page 100: Sensor Module Items

    sierra monitor corporation SPL49121 SPL49142 SPL52094 SPL69017 SPL69121 SPL69145 SPL69146 SPL69148 SPL69150 8.4.2 SENSOR MODULE ITEMS Sensor Modules 5100-01 5100-02 5100-03 5100-04 5100-05 5100-06 5100-07 5100-10 5100-12 5100-16 5100-21 5100-22 5100-25 5100-90 5100-99 Sensor Module Accessories 5311-00 5394-00 5398-01 5398-02 5398-24 5399-01 SPL21776...

  • Page 101: Calibration Equipment

    Gas Sensor Calibrator w/2 Gas Cylinders (Specify Gas Type/Conc.) Gas Cylinder - Air Gas Cylinder - Methane, CH4, 50% L.E.L. Gas Cylinder - Methane, CH4, 5000 ppm Gas Cylinder - Methane, CH4, 1000 ppm Gas Cylinder - Carbon Monoxide, CO, 100 ppm Gas Cylinder - Hydrogen, H2, 50% L.E.L.

  • Page 103: Identification

    sierra monitor corporation 8.5 APPENDIX E - INSTRUCTIONS FOR PRINTER SOFTWARE OPTION 8.5.1 IDENTIFICATION Sentry systems configured with printer software (5387-00) or printer network software (5388-00) can be identified by pressing the key twice. Printer software is installed TIME if the display reads PRINT HISTORY 8.5.2 CAPABILITY Pre-formatted reports can be printed, via the RS232 port...

  • Page 104: Report Format

    sierra monitor corporation Sentry Instruction Manual - Version 6 8.5.3.5 REPORT FORMAT: All printer reports begin with the controller ID# which is a single alpha identification set in the activity. The reports also begin CHANGE PRINTER with the present system date and time. All printer reports end with a line across the page.

  • Page 105: Appendix F - Model 5392 Individual Relay

    sierra monitor corporation 8.6 APPENDIX F - MODEL 5392 INDIVIDUAL RELAY 8.6.1 RELAY PANEL DESCRIPTION Model 5392-00 Individual Relay Panel extends Sentry low alarm and high alarm capability by providing individual single pole double throw (SPDT) dry contacts for each alarm level for each module. designed to be installed as follows: Rack or Chassis Controllers: stand-offs on the connector panel of the...

  • Page 106: Table 8-2 Individual Alarm Relay Logic

    sierra monitor corporation LOW RELAY: HIGH RELAY: Status Outputs No Alarm Low Relay High Relay Low Alarm Low Relay High Relay No Alarm Low Relay High Relay No Alarm Low Relay High Relay Low Alarm Low Relay High Relay High Alarm Low Relay High Relay Low Alarm...
  • Page 107 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-2 Individual Relay Panel APPENDIX F - MODEL 5392 INDIVIDUAL RELAY Page: 101...
  • Page 108 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-3 Individual Relay Panel - Installed View APPENDIX F - MODEL 5392 INDIVIDUAL RELAY Page: 102...

  • Page 109: Appendix G - Model 4314 Output Expansion Panel

    sierra monitor corporation 8.7 APPENDIX G - MODEL 4314 OUTPUT EXPANSION PANEL 8.7.1 EXPANSION PANEL DESCRIPTION The Model 4314-01 Output Expansion Panel extends Sentry low and high alarm capability by providing individual single pole double throw (SPDT) dry contacts for each alarm level for each module, and also provides eight analog outputs for retransmission of the gas concentration values for each sensor.

  • Page 110: Output Expansion Panel Testing

    sierra monitor corporation 8.7.5 OUTPUT EXPANSION PANEL TESTING The relay outputs can be forced to the energized state by using the front panel function. TEST ALARMS The analog outputs can be forced to 4 mA by using diagnostic code 0012. The analog outputs can be forced to 20 mA by using diagnostic code 0013.
  • Page 111 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-4 Model 4314-01 Output Expansion Module APPENDIX G - MODEL 4314 OUTPUT EXPANSION PANEL Page: 105...

  • Page 112: Appendix H - Model 5100-99 Analog Input Module

    sierra monitor corporation APPENDIX H - MODEL 5100-99 ANALOG INPUT MODULE 8.8.1 DESCRIPTION The Analog Input Module is used to allow input to Sentry by a 4-20 mA analog device, such as an analog gas sensor or other type of sensing device. The module has the same physical form as other Sentry gas modules except that the sensor assembly in the lower hub is replaced by the user’s...

  • Page 113: Appendix I - Model 5100-90 8-Channel Analog-Digital Converter

    sierra monitor corporation 8.9 APPENDIX I - MODEL 5100-90 8-CHANNEL ANALOG-DIGITAL CONVERTER 8.9.1 DESCRIPTION The 8-Channel Analog-Digital Converter can be used to connect up to eight 4-20 mA sensor devices from Sierra Monitor or other manufacturers to the Sentry controller. 8.9.2 INSTALLATION Power down the system Figure 8-6 shows the terminal connections for the 8-...
  • Page 114 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-6 Model 5100-90 Analog Input Multiplexor APPENDIX J - REFERENCE DRAWINGS Page: 108...

  • Page 115: Appendix J - Reference Drawings

    sierra monitor corporation Sentry Instruction Manual - Version 6 8.10 APPENDIX J - REFERENCE DRAWINGS APPENDIX J - REFERENCE DRAWINGS Page: 109...
  • Page 116 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-7 Typical Rack Configuration Wiring APPENDIX J - REFERENCE DRAWINGS Page: 110...
  • Page 117 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-8 Typical NEMA-4X Wiring APPENDIX J - REFERENCE DRAWINGS Page: 111...
  • Page 118 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-9 Rainshield and Calibration Adapter APPENDIX J - REFERENCE DRAWINGS Page: 112...
  • Page 119 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-10 Duct Mount Fitting Components APPENDIX J - REFERENCE DRAWINGS Page: 113...
  • Page 120 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-11 Duct Mount Fitting - Assembled View APPENDIX J - REFERENCE DRAWINGS Page: 114...
  • Page 121 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-12 Instrument Rack Dimensions APPENDIX J - REFERENCE DRAWINGS Page: 115...
  • Page 122 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-13 Enclosure, NEMA 4, NEMA 7, Groups B, C, D APPENDIX J - REFERENCE DRAWINGS Page: 116...
  • Page 123 sierra monitor corporation Sentry Instruction Manual - Version 6 Figure 8-14 Remote Sensor Connection Diagram APPENDIX J - REFERENCE DRAWINGS Page: 117...

  • Page 125: Diagnostic Code

    sierra monitor corporation ACCESS CODES ADDRESS 1, 18, 19, 56, 57, 63, 64, 107 ALPHANUMERIC DISPLAY AMMONIA SENSOR MODULE ANALOG INPUT MODULE ANALOG OUTPUT ANALOG-DIGITAL CONVERTER BATTERY 2, 20, 53, 56, 58, 59, 85, 89 BRIDGE VOLTAGE ADJUSTMENT CALIB/CHANGE CALIBRATE 21, 33, 35, 37, 38, 49, 50, 63 CALIBRATE OR CHANGE CALIBRATION 1, 15, 17, 33, 34, 38, 40, 47, 48, 49, 50, 51, 53, 55, 59,...

  • Page 126: List Of Tables

    sierra monitor corporation POWER SUPPLY PRINT HISTORY PRINT STATUS PRINT SYSTEM PRINTER OUTPUT PRINTER SOFTWARE RELAY REPLACEMENT REPLACE SENSOR RESET ALARMS RESET HISTORY RESET KEY RESET SYSTEM SAFE SCAN SENSOR FAILURE 63, 64, 66, 69, 72, 74, 76, 78, 79, 81, 82 SET DATE/TIME SET USER CODE SPECIFICATIONS...

  • Page 127: List Of Figures

    sierra monitor corporation Sentry Instruction Manual - Version 6 10. LIST OF FIGURES Figure 1-1 Front Panel Display... 3 Figure 1-2 Rack Mount Configuration - Outline ... 4 Figure 1-3 NEMA-4 Configuration - Outline... 5 Figure 1-4 NEMA-7 Configuration - Outline... 6 Figure 1-5 Panel Mount Configuration Outline...

  • Page 128: List Of Tables

    sierra monitor corporation Sentry Instruction Manual - Version 6 11. LIST OF TABLES Table 3-1 Specific Gravity of Selected Gases... 17 Table 3-2 Minimum Wire Gauges ... 17 Table 3-3 Sensor Module Wiring ... 18 Table 3-4 Sensor Module Binary Switch Positions... 18 Table 3-5 Sentry Controller Capacity...
  • Page 129 sierra monitor corporation Author: Gordon Arnold - July 1992 Gordon Arnold - November 1995 General: This manual is a re-write of the Version 4.0 Instruction and Service manuals for Sentry systems. Changes implemented are to comply with FM approval requirements and to update or correct sections which have been obsoleted by time.
  • Page 130 sierra monitor corporation Sentry Instruction Manual - Version 6 APPLICABILITY & EFFECTIVITY Effective for all Sentry systems manufactured after September 1, 1995. Effective for FM approved systems after FM contract is signed. Sierra Monitor Corporation 1991 Tarob Court, Milpitas, CA 95035 (408) 262-6611 Applicability &...

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