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Critical Environment Technologies cGas Detector Installation Manual

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Installation Manual
Rev. A | 2020.03
cGas Detector
Digital Transmitter
www.critical-environment.com

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  • Page 1 Installation Manual Rev. A | 2020.03 cGas Detector Digital Transmitter www.critical-environment.com...
  • Page 2 Rev. A | 2020.03 NEED MORE INFORMATION? This is the Installation Manual for the cGas Detector Digital Transmitter. If you would like it in pdf form, please scan the QR code on the back cover page of this booklet or download it from our website: https://www.critical-environment.com/media/download/manuals/CGAS-D-...

  • Page 3: Table Of Contents

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual TABLE OF CONTENTS 1 POLICIES .......................6 1.1 Important Note ..................6 1.2 Warranty Policy ..................7 1.3 Service Policy ..................8 1.4 Copyrights ....................9 1.5 Disclaimer ....................9 1.6 Revisions ....................
  • Page 4 Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 6.5 Mounting the Transmitter ..............26 6.5.1 Wet Environment Considerations ..........26 6.5.2 EMI and RF Interference Considerations ........27 6.5.3 Mounting Height (Sensor Dependent) ........27 6.6 Enclosure Mounting Components ............28 6.6.1 Enclosure Base ................
  • Page 5 Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual 8.3 Confi guring BACnet® Settings ............44 8.3.1 Change BACnet® MAC Address ..........44 8.3.2 Change BACnet® Instance ID ............45 8.3.3 Change BACnet® Baud Rate ............46 8.3.4 BACnet® PICS Information ............47 9 TROUBLE SHOOTING ...................48...

  • Page 6: Policies

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 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.

  • Page 7: Warranty Policy

    Detector Digital Transmitter - Installation Manual 1.2 Warranty Policy Critical Environment Technologies Canada Inc. (the manufacturer) warrants this gas monitoring instrument, (excluding sensors, battery packs, batteries, pumps and fi lters), to be free from defects in materials and workmanship for a period of two years from the date of purchase from our facility.

  • Page 8: Service Policy

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 1.3 Service Policy CETCI maintains an instrument service facility at the factory. Some CETCI distributors / agents may also have repair facilities; however, CETCI assumes no liability for service performed by anyone other than CETCI personnel.

  • Page 9: Copyrights

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual 1.4 Copyrights This manual is subject to copyright protection; all rights are reserved. Under international and domestic copyright laws, this manual may not be copied or translated, in whole or in part, in any manner or format, without the written permission of CETCI.

  • Page 10: Introduction

    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 fl exible customization options with the purpose of meeting your specifi c application and budgetary requirements.

  • Page 11: Key Features

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual The sensors utilized in this device are accurate enough to measure to Occupational Health & Safety (OHS) hazardous levels for toxic gases. The transmitter operates by diffusion. 2.2 Key Features •...

  • Page 12: Instrument Specifications

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 Option -LT is a low temperature package with OLED display and internal heater for cold environment applications down to -40°C / -40°F • Available with all models except CGAS-D-EETO Option -RHT is an RH &...
  • Page 13 Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual Conduit Entry Points 12.7 mm / 1/2 in diameter 4.47 mm / 0.175 in diameter Mounting Holes maximum head diameter 8 mm / 0.32 in, #8 or 4 mm screw USER INTERFACE 2-line by 16 character graphic LCD, user confi...
  • Page 14 Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 INPUT/OUTPUT Modbus® ID: 100 (default, confi gurable) Communication Baud rate: 19,200 (default, confi gurable) Modbus® RTU Data bits: 8 (version 1.1b3) Start bits: 1 RS-485 Stop bits: 1 Parity: none BACnet®...
  • Page 15 Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual Pollution Degree Degree 2 Altitude below 2,000 m 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 16: Enclosure Dimensions

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 3.2 Enclosure Dimensions Above dimensions are shown with optional splash guard. Without splash guard, thickness is 71 mm / 2.8 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.

  • Page 17: Sensor Specifications

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual 4 SENSOR SPECIFICATIONS 4.1 Single Channel Gas Sensor Options Electrochemical Sensors Part Number Range Lifespan Ammonia (NH CGAS-D-NH3 0 - 500 ppm ~2 yrs Carbon Monoxide (CO) CGAS-D-CO 0 - 200 ppm...
  • Page 18 Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 Phosphine (PH CGAS-D-PH3 0 - 5 ppm ~2 yrs Silane (SiH CGAS-D-SIH4 0 - 20 ppm ~2 yrs Sulphur Dioxide (SO CGAS-D-SO2 0 - 20 ppm ~2 yrs Refrigerant Sensors...

  • Page 19: Dual Channel Gas Sensor Options

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual PID Sensors Part Number Range TVOC CGAS-D-SPL 0 - 30 ppm usage / application TVOC CGAS-D-SPH 0 - 300 ppm dependent Infrared Sensors Part Numbers Range Lifespan CGAS-D-CO2-5K 0 - 5,000 ppm...

  • Page 20: Calibration Extending Firmware (Cef) And Sensor Aging

    UL2075 approved CO sensor 4.3 Calibration Extending Firmware (CEF) and Sensor Aging The cGas Detector with integral electrochemical sensor(s) have been programmed with our CEF. This fi rmware takes into consideration the aging of the electrochemical CO and NO sensors so that less frequent calibrations are required in less-critical applications such as parking garages.

  • Page 21: Instrument Features

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual 5 INSTRUMENT FEATURES 5.1 Exterior Enclosure Œ • • • Ž Œ NUMBER FEATURE FUNCTION Secures door to base and allows Œ Door Hinge easy opening and closing LCD display (standard display) •...

  • Page 22: Interior System Layout

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 5.2 Interior System Layout Œ • Œ Œ Ž • • NUMBER FEATURE FUNCTION Access menu options and program Programming Œ functions using buttons inside the Buttons enclosure. (Arrow up, Enter, Arrow down)

  • Page 23: Installation

    When installing the cGas Detector for the fi rst time, the sensor may require a long warm up time (24 to 48 hours) to stabilize and provide accurate readings.

  • Page 24: General Safety Warnings

    6.2 General Safety Warnings The cGas Detector is intended for indoor use, permanently mounted at a height that is appropriate for the type of gas being monitored. Refer to Section 6.5 Mounting the Transmitter. The cGas Detector should be protected from extreme weather conditions.

  • Page 25: Protection Against Mechanical Risks

    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). Appropriate markings should be visible at the circuit breaker / switch that is supplying power to the cGas Detector.

  • Page 26: Mounting The Transmitter

    6.5 Mounting the Transmitter The cGas Detector should be installed on a fl at vertical surface using the four 4.4 mm / 0.175 in diameter mounting holes provided to maintain water tight status. Care should be taken to ensure that the face of the cGas Detector is not obstructed in order to maximize the sensor’s exposure to the environment...

  • Page 27: Emi And Rf Interference Considerations

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual 6.5.2 EMI and RF Interference Considerations All electronic devices are susceptible to EMI (Electromagnetic Interference) and RFI (Radio Frequency Interference). Our detectors have been designed to reduce the effects of these interferences and we meet CSA FCC and CE requirements for these type of devices.

  • Page 28: Enclosure Mounting Components

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 APPLICATIONS / SUGGESTED MOUNTING TYPES HEIGHT Carbon Monoxide (CO) Gas engine exhaust 1.2 - 1.8 m above the fl oor 4 - 6 ft above the fl oor Nitrogen Dioxide (NO...

  • Page 29: Enclosure Bottom

    Conduit Entry Points 12.7 mm / 1/2 in diameter • 6.7 Wiring Connections The cGas Detector transmitter is a low voltage powered device. Any application of operating voltages higher than indicated in the specifi cation may result in damage. Double check wiring connections prior to powering the transmitter.
  • Page 30 008500 or equivalent. 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 31 Detector Digital Transmitter - Installation Manual Wiring Example: 4-Wire VDC If the cGas Detector is being connected to a QCC or FCS the supply voltage will either be supplied by the QCC or FCS and any additional power requirements of the system will be supplied by RPS-24VDC Remote Power Supply devices.

  • Page 32: Digital Wire Gauge Vs Run Length

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 6.7.1 Digital Wire Gauge vs Run Length It is important to use the appropriate gauge of wire for the required length of the run to ensure suffi cient available voltage, noise reduction, dissipation of heat, and overall optimum performance along the entire wire run.

  • Page 33: Wiring The Relay Smart Baord (Models With Option -Rly)

    The cGas Detector continuously monitors target gas concentrations on one or two confi gured channels. It must be connected to a controller, control panel or BAS / BMS / DDC system; the cGas Detector is not a standalone gas detection system.

  • Page 34: Navigating The Menu Structure

    The warm-up period takes between 2 and 5 minutes depending on the gas sensors type. NOTE: The cGas Detector will be visible on the controller / BAS / DDC system during the warm-up countdown but a correct reading will not show up until the unit has fi...

  • Page 35: Accessing The Menu With Passcodes

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual The UP or DOWN buttons are used to enter characters/numbers and to navigate to the next menu item. For simplicity’s sake, directions in this manual use the UP button.
  • Page 36 Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 If confi gured as a BACnet® device • Comm Type 1001 Basic Menu • Comm Mac • Comm Baud • Instance ID • Display Type • Brightness 1014 Display Menu •...

  • Page 37: Change Units ( C Or F) Of Temperature Readings

    7.4 Change Units ( C or F) of Temperature Readings NOTE: This menu item only applies if the cGas Detector has the -RHT option installed. You can change the factory confi gured temperature unit type from Celsius to Fahrenheit (or vice versa) very easily.
  • Page 38 F) of Temperature Readings. The temperature and relative humidity sensors come pre-calibrated from the factory. If you fi nd that the readings on the cGas Detector are higher or lower than another measurement device, you can adjust the reading by setting an offset value so the reading is more accurate.

  • Page 39: Test Functions

    (within the range of the sensor) that will be sent over the digital network to test the connection and confi gured responses between the cGas Detector and the DDC/BAS. You can do the same for relative humidity and temperature if the -RHT option is installed.

  • Page 40: Test Relay (Models With Option -Rly)

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 • Temperature • Humidity Press the UP button to fi nd Test Reading. To make a change, press ENTER and then use the UP, DOWN and ENTER buttons to enter the value.

  • Page 41: Modbus & Bacnet Configuration

    When fi nished, press ENTER and then UP to Exit. 8 MODBUS & BACNET CONFIGURATION The cGas Detector can be changed from Modbus® to BACnet® or vice versa in the fi eld. 8.1 Changing Digital Communication Type in the Field When the communication type is changed from/to Modbus®...

  • Page 42: Confi Guring Modbus® Settings

    Reset Device >BACNET Press ENTER and the cGas Detector will power off and on. This will cause a brief interruption in communications if the cGas Detector is on a network. NOTE: If you change the Comm Type, make sure you make the necessary changes to the corresponding MAC, Baud and Instance ID as appropriate.

  • Page 43: Change Modbus® Mac Address

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual 8.2.1 Change Modbus® MAC Address All devices on the same network must have a unique Modbus ID. The range of numbers that can be used as a Modbus® MAC address is 100 to 255.

  • Page 44: Modbus® Holding Registers

    Instance ID make up the complete ID for the device. Each device requires a unique ID in order to communicate with the BAS / DDC. A MAC address should be set for each digital cGas Detector during installation. © 2020 All rights reserved. Data subject to change without notice.

  • Page 45: Change Bacnet® Instance Id

    Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual From the main display, press ENTER. Enter passcode 1001 using the UP button and ENTER button. Enter Password 1001 Press ENTER to access the Basic Menu. Basic Menu Press Enter The Comm Type should be BACnet.

  • Page 46: Change Bacnet® Baud Rate

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 The Comm Type should be BACnet. Press the UP button until you see Instance Comm Type Instance ID BACnet 270100 Press ENTER. Use the UP button to enter the numeric value. Move to the next digit by pressing ENTER.

  • Page 47: Bacnet® Pics Information

    ENTER to Exit. 8.3.4 BACnet® PICS Information Critical Environment Technologies Canada Inc. (CETCI) has been granted the BACnet® Testing Laboratories (BTL) certifi cation for the CGAS Detector Family upon passing the BTL requirements for the BACnet® Smart Actuator (B-SA) designation.

  • Page 48: Trouble Shooting

    Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 9 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 Connection. cGas Detector display shows “COMM” message.
  • Page 49 Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual NOTES © 2020 All rights reserved. Data subject to change without notice.
  • Page 50 Detector Digital Transmitter - Installation Manual Rev. A | 2020.03 NOTES © 2020 All rights reserved. Data subject to change without notice.
  • Page 51 Rev. A | 2020.03 cGas Detector Digital Transmitter - Installation Manual NOTES © 2020 All rights reserved. Data subject to change without notice.
  • Page 52 CGAS-D-20200309-Rev-A Unit 145, 7391 Vantage Way, Delta, BC V4G 1M3 Canada Tel: +1.604.940.8741 Toll Free: +1.877.940.8741 www.critical-environment.com © 2020 All rights reserved. Data subject to change without notice.

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