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Critical Environment Technologies CGAS-D Detector Installation Manual

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Installation Manual
Rev. D | 2023.07
CGAS-D Detector
Digital Transmitter
www.critical-environment.com

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Summary of Contents for Critical Environment Technologies CGAS-D Detector

  • Page 1 Installation Manual Rev. D | 2023.07 CGAS-D Detector Digital Transmitter www.critical-environment.com...
  • Page 2 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 NEED MORE INFORMATION? This is the Installation Manual for the cGas Detector Digital Transmitter. If you would like to make sure you have the most current version or want to save it in pdf form, click here to open or download it from our website.

  • Page 3: Table Of Contents

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual TABLE OF CONTENTS 1 POLICIES ....................... 5 1.1 Important Note ..................5 1.2 Warranty Policy ..................6 1.3 Service Policy ..................6 1.4 Copyrights ....................7 1.5 Disclaimer ....................7 1.6 Revisions ....................
  • Page 4 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 6.4 Protection Against Mechanical Risks ..........27 6.5 Mounting the Transmitter ..............28 6.5.1 Wet Environment Considerations ..........28 6.5.2 EMI and RF Interference Considerations ........29 6.5.3 Mounting Heights (sensor and application dependent) ..29 6.6 Enclosure Mounting Components ............

  • Page 5: Policies

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 1 POLICIES 1.1 Important Note Read and understand this manual prior to using this instrument. Carefully read the warranty policy, service policy, notices, disclaimers and revisions on the following pages. This product must be installed by a qualified electrician or factory trained technician and according to instructions indicated in this manual.

  • Page 6: Warranty Policy

    The product is only to be used for the purposes stated in the manual. Critical Environment Technologies is not liable for auxiliary interfaced equipment or consequential damage.

  • Page 7: Copyrights

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual may contact the distributor from whom it was purchased or you may contact CETCI directly. Prior to shipping equipment to CETCI, contact our office for an RMA #. All returned goods, regardless of reason, must be accompanied with an RMA number.

  • Page 8: Revisions

    Should you detect any error or omission in this manual, or should you want to inquire regarding upgrading the device’s firmware, please contact CETCI at the following address: Critical Environment Technologies Canada Inc. Unit 145 - 7391 Vantage Way, Delta, BC V4G 1M3 Canada Toll Free: +1.877.940.8741...

  • Page 9: Introduction

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 2 INTRODUCTION 2.1 General Description Thank you for purchasing our cGas Detector Transmitter. The cGas Detector is a one or two channel gas detection transmitter that offers flexible customization options with the purpose of meeting your specific application and budgetary requirements.
  • Page 10 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 • Optional low temperature package for improved usability in cold environments* • Optional Relative Humidity and Temperature sensor • One SPDT dry contact relay with internal buzzer** • Optional SPDT dry contact relay, rated 30 volts, 2 amps*** •...

  • Page 11: Instrument Specifications

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual NOTES: All 4 series sticky gas sensor models cannot have a relay and buzzer. All 7 series toxic and sticky gas models come standard with a relay and buzzer. If after reading through the manual, you have any questions, please do not hesitate to contact our Technical Support department at help@cetci.com.
  • Page 12 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Internal port for USB memory stick connection for in USB Port field configuration updates and firmware upgrades Initiate calibration and menu options with internal UP, Push Buttons DOWN and ENTER push buttons Rated 90dB @ 10 cm / 4in, user enable/disable Comes standard with all 7 series electrochemical, IR Audible Alarm...
  • Page 13 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual BACnet® MS/TP; ANSI/ASHRAE standard 135 BACnet® Communication protocol: 135-2012 Baud Rate: 76,800 (default, configurable) Communication Base Address: 270 (default, configurable) BACnet® MS/TP MAC Address: 100* (default, configurable) (version 1 rev 14) Parity: none (default, configurable) RS-485 Stop bits: 1...
  • Page 14 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 CERTIFICATION Model: CGAS-D-XXX S/N: CGASD1807B00010 Rating: 16-30 VDC, 3W, Class 2 12-27 VAC, 50-60 Hz, 3VA, Class 2 CERTIFIED FOR ELECTRIC SHOCK & ELECTRICAL FIRE HAZARD ONLY. LA CERTIFICATION ACNOR COUVRE UNIQUEMENT LES RISQUES DE CHOC ELECTRIQUE ET D’INCENDIE D’ORIGINE ELECTRIQUE.

  • Page 15: Enclosure Dimensions

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 3.2 Enclosure Dimensions Above dimensions are shown with optional standard splash guard. Without splash guard, thickness is 71 mm / 3.0 in. The area required for enclosure door to be open 90 degrees is 178 mm / 7.0 in or 254 mm / 10.0 in for fully open. With the optional splash guard installed, the enclosure is IP54 rated.

  • Page 16: Sensor Specifications

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 4 SENSOR SPECIFICATIONS 4.1 Single Channel Gas Sensor Options Internal 4 Series Electrochemical Part Number Range Lifespan Sensors Carbon Monoxide (CO) CGAS-D-CO 0 - 200 ppm ~3+ yrs Ethylene Oxide (C CGAS-D-EETO 0 - 20 ppm ~2 yrs...
  • Page 17 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Chlorine Dioxide (ClO CGAS-D-7CLO2 0 - 1 ppm ~2 yrs Ethylene (C CGAS-D-7C2H4 0 - 200 ppm ~2 yrs Fluorine (F CGAS-D-7F2 0 - 1 ppm ~2 yrs Hydrogen Chloride (HCl) CGAS-D-7HCL 0 - 30 ppm ~2 yrs...
  • Page 18 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Refrigerants: R134A, R143A, R22, R32, R227ea, R402A, R404A, R407A, R407C, CGAS-D-IR134A R407F, R410A, R417A, CGAS-D-IR143A R422A, R422D, R427A, CGAS-D-IR22 0 - 2,000 ppm ~8 yrs R434A, R438A, R442A, CGAS-D-IR32 R448A, R449A, R450A, etc.
  • Page 19 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Internal Catalytic Part Number Range Lifespan (Combustible) Sensors CGAS-D- Butane (C 0 - 100% LEL ~5 yrs CC4H10-100 Ethanol or Dimethyl CGAS-D- 0 - 100% LEL ~5 yrs Ether (C CC2H6O-100 CGAS-D- Ethane (C...

  • Page 20: Dual Channel Gas Sensor Options

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 No Internal Sensor Part Number Add a remote ESH-A CGAS-D-R sensor Add a remote analog CGAS-D-RT transmitter 4.2 Dual Channel Gas Sensor Options Two Internal Electrochemical Part Number Range Lifespan Sensors (4 Series) Carbon Monoxide (CO)

  • Page 21: Esh-A-Remote Sensor Options

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Hydrogen Sulphide (H 0 - 50 ppm CGAS-D-H2S-SO2 ~2 yrs Sulphur Dioxide (SO 0 - 20 ppm UL2075 Approved Carbon Monoxide sensor is available except for dual channel configurations that have Option -RHT. One Internal Sensor and Part Number One Remote Sensor...

  • Page 22: Calibration Extending Firmware (Cef) And Sensor Aging

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Infrared Sensors Part Number Range Lifespan Propane (C ESH-A-JET 0 - 100% LEL ~8 years PID Sensors Part Number Range Lifespan ESH-A-SPL 0 - 30 ppm usage / TVOCs application ESH-A-SPH 0 - 300 ppm...

  • Page 23: Instrument Features

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 5 INSTRUMENT FEATURES 5.1 Exterior Enclosure       NUMBER FEATURE FUNCTION Secures door to base and allows Door Hinge  easy opening and closing LCD display (standard display) Display ...

  • Page 24: Interior System Layout

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 5.2 Interior System Layout        NUMBER FEATURE FUNCTION Access menu options and program Programming functions using buttons inside the  Buttons enclosure. (Arrow up, Enter, Arrow down) RS-485 Pluggable power and signal terminal ...

  • Page 25: Installation

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 6 INSTALLATION The sensor(s) in the cGas Detector go through a burn in period at our factory prior to shipping so it is ready for operation upon arrival. When installing the cGas Detector for the first time, the sensor may require a long warm up time (24 to 48 hours) to stabilize and provide accurate readings.

  • Page 26: General Safety And Maintenance Warnings

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Ozone sensors are sensitive and may be reactive to temperature changes causing them to drift. Silicone, lead and chlorinated hydrocarbon vapours can poison catalytic sensors. A bump test will help you determine if a sensor requires calibration. If the sensor still does not respond as it should after a successful calibration, it probably requires replacing.

  • Page 27: Protection Against Electrical Risks

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 6.3 Protection Against Electrical Risks Disconnect all power before servicing. There may be multiple power sources. Power supply may have a building installed circuit breaker / switch that is suitably located and easy to access when servicing is required and should be labelled as cGas Detector supply (disconnecting power to the cGas Detector).

  • Page 28: Mounting The Transmitter

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 The enclosure has one screw securing the door to the base for electrical safety and provides an opening to allow the user to apply a padlock or tie wrap if they desire the transmitter to be locked.

  • Page 29: Emi And Rf Interference Considerations

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual If used in a wet or wash down application, the conduit hub entering the cGas Detector enclosure must be liquid tight type. Water damage is not covered under warranty. Any physical damage to the transmitter or interior components that occurs from the installer drilling the installation holes will not be covered under warranty.
  • Page 30 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Lighter than air gases float upwards and collect at the ceiling. Lighter than air sensors should be placed on or near the ceiling. Gases that have a density close to that of air should have the sensors installed in the breathing zone. The breathing zone refers to the area 1.2 - 1.8 m / 4 - 6 ft from the floor, where most human breathing takes place.
  • Page 31 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Ethanol (C2H6O) 6 in (15 cm) from 3000 (alcohol) floor Methanol (CH4O) 6 in (15 cm) from 3000 (alcohol) floor Hydrogen (H2) application 3000 (electrochemical) dependent Ethylene (C2H4) breathing zone 5000 6 in (15 cm) from Fluorine (F2)

  • Page 32: Enclosure Mounting Components

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 6 in (15 cm) from Sulphur Dioxide (SO2) 3000 floor 12 in (30 cm) from All freon refrigerants 3000 floor target gas TVOCs 3000 dependent 6.6 Enclosure Mounting Components 6.6.1 Enclosure Base ...

  • Page 33: Enclosure Bottom

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Mounting Holes 4.47 mm / 0.175 in diameter maximum head diameter 8 mm / 0.32 in, #8 or 4 mm  screw 6.6.2 Enclosure Bottom   NUMBER FEATURE Door Hinge ...
  • Page 34 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 be connected to ground only at the controller, have a contiguous connection throughout the network and be left taped and floating at the last device in the network. CETCI recommends 4 conductor, 16 AWG, shielded stranded wire cable types like AlphaWire 79220, Belden 5202FE 008500 or equivalent.
  • Page 35 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Wiring Example: 4-Wire VAC If the cGas Detector is being connected to a BAS, DDC or other control panel then either a 24 VDC power supply or 24 VAC Class 2 or better transformer needs to be used.

  • Page 36: Digital Wire Gauge Vs Run Length

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Wiring Example: 4-Wire VDC If the cGas Detector is being connected to an FCS the supply voltage will be supplied by the FCS and any additional power requirements of the system will be supplied by RPS-24VDC Remote Power Supply devices.
  • Page 37 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual ie. CGAS-D-CO-R + ESH-A-CH2-100). CETCI strongly recommends a 4-conductor, 16 AWG, shielded, stranded wire cable type such as AlphaWire 79220, AlphaWire 5534, Belden 9954 or equivalent. NOTE: When wiring transmitters or the FCS WAN to a third party controller / control panel / BAS / DDC and there is a discrepancy between CETCI’s recommended wire gauge and the third party specifications, we recommend following the recommendations of the third party.

  • Page 38: Wiring The Relay

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 In large system applications, if the recommended maximum cable length needs to be exceeded, an LNK-XT Network Extender can be used to boost the decreasing signal strength. One LNK-XT extends the network length up to an additional 914 m (3,000 ft).

  • Page 39: Esh-A Remote Sensor Wiring Connection

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual • Solid state refrigerant gas sensor • PID TVOC gas sensor NOTE: 4 series sticky gas sensor cannot have a relay and buzzer. The cGas Detector is designed to be fail-safe. Equipment to be controlled by the relay should be wired to the “NC”...
  • Page 40 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 from the signal output, and should not exceed 15 m (50 ft). The voltage at the remote sensor (Red V+ to Black GND) should not be below 4.5 volts. If this voltage is not met after installation, the wrong gauge wire may have been used or the wiring run is too long.

  • Page 41: Power Draw Requirements

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 6.8 Power Draw Requirements PEAK POWER CONSUMPTION CGAS MODEL CGAS-D-CO 1.2 watts CGAS-D-CO2 1.5 watts CGAS-D-NO2 1.2 watts CGAS-D-H2S 1.2 watts CGAS-D-CO-NO2 1.3 watts CGAS-D-CO-H2S 1.3 watts CGAS-D-R + ESH-A 2.5 watts CGAS-D with internal solid state or 1.5 watts...

  • Page 42: Basic System Operation

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 7 BASIC SYSTEM OPERATION The cGas Detector continuously monitors gas concentrations on one configured channel. It can be connected to a controller (FCS, DCC or SCC), a control panel or a BAS / BMS / DDC system. If the relay and buzzer is installed, the cGas Detector can operate as standalone device.

  • Page 43: Navigating The Menu Structure

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Upon power-up, all sensors* should be left to warm up for 24 hours prior to considering the gas readings to be accurate. *except, Ammonia, which should be left to warm up for 48 hours. NOTE: All sensors are calibrated in the factory prior to shipping and should not require calibration at the time of a routine installation or replacement.

  • Page 44: Accessing The Menu With Passcodes

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 7.3 Accessing the Menu with Passcodes From any normal operation screen press ENTER to bring up the passcode entry screen. Enter one of the following passcodes using the Numeric Entry method described in the previous section.

  • Page 45: Display Settings

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual 7.4 Display Settings The LCD display can display up to 2-lines of 16-characters. After warm-up and upon normal operation, the display will show the current gas level reading for each channel that it has been configured.

  • Page 46: Alarm Status, Fault Detection And Communication Failure Alerts

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Enter passcode 2019 and press the ENTER button. Enter Passcode 2019 Navigate to the Display parent menu and then to the Display Type menu item and press ENTER. Choose Menu Display Type >Display Normal...

  • Page 47: Change Units ( C Or F) Of Temperature Readings

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual controller or BAS, the screen will display COMM at the end of the line. COMM COMM For a list of Fault Codes, refer to Section 8 Troubleshooting. 7.6 Change Units ( C or F) of Temperature Readings NOTE: This menu item only applies if the cGas Detector has the -RHT option...

  • Page 48: Temperature And/Or Relative Humidity Offset

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 7.7 Temperature and / or Relative Humidity Offset NOTE: This menu item only applies if the cGas Detector has the -RHT option installed. NOTE: Depending on the configuration, the device will show the temperature in either Celsius or Fahrenheit.

  • Page 49: Test Functions

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Press ENTER to confirm the value is correct. Confirm? Confirm? >-4.0 degC >Y >+2 %RH >Y 7.8 Test Functions 7.8.1 Test Reading / Test Digital Output For each gas channel, you can manually enter a gas reading value of your choice (within the range of the sensor) that will be sent over the digital network to test the connection and configured responses between the cGas Detector and the DDC/BAS.

  • Page 50: Test Relay And Buzzer (If Installed)

    cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 Press ENTER to confirm the value is correct. Confirm? Test Reading >10.0 PPM NO2 >Y 10.0 PPM NO2 The test will start as soon as you press ENTER to confirm. To stop the test, press the UP or DOWN button.

  • Page 51: Trouble Shooting

    Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual and the relay will deactivate or the buzzer will go quiet. Test RLY: >Untripped 8 TROUBLE SHOOTING cGas Detector won’t power up. (blank display) Is the power properly connected? Check the wiring connections. Refer to Section 6.7 Wiring Connections.
  • Page 52 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 a channel. List of Possible cGas Error Codes CODE DESCRIPTION The controller or BAs has not read the current gas concentrations in more than the preset time (default 5 minutes). Could be an address Miss-matched between cGAS and controller / BAS.
  • Page 53 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual Ensure the smart board is seated properly and Smart Board installed on the correct side (left) if a single Faults channel unit. If a power cycle does not resolve this, replace the sensor smart board.
  • Page 54 cGas Detector Digital Transmitter - Installation Manual Rev. D | 2023.07 NOTES © 2023 All rights reserved. Data subject to change without notice.
  • Page 55 Rev. D | 2023.07 cGas Detector Digital Transmitter - Installation Manual NOTES © 2023 All rights reserved. Data subject to change without notice.
  • Page 56 SAFER AIR EVERYWHERE. www.critical-enviroment.com CGAS-D-20230710-Rev-D Unit 145, 7391 Vantage Way, Delta, BC V4G 1M3 Canada Tel: +1.604.940.8741 Toll Free: +1.877.940.8741 © 2023 All rights reserved. Data subject to change without notice.

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