Critical environment technologies Cgas detector User manual

Rev. A | 2020.03

www.critical-environment.com

cGas Detector Digital Transmitter

Installation Manual

cGas Detector Digital Transmitter - Installation Manual 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-

Installation-Manual.pdf

There is also an Operation Manual, which includes more information:

• Adjusting Display Settings

• Alarm Status, Fault Detection and Communication Failure

Notiﬁcations

• Setting Channel Alarm Setpoints, Direction and Hysteresis

• Relay Operations

• Enable/Disable Channels

• How to Install a Replacement Smart Sensor

• Calibration

• Accessories

• Maintenance

• Troubleshooting

You can scan the QR code below or download the Operation Manual from our

website:

https://www.critical-environment.com/media/download/manuals/CGAS-D-

Operation-Manual.pdf

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 ................................................................................................ 9

2 INTRODUCTION ...........................................................................................10

2.1 General Description.............................................................................. 10

2.2 Key Features......................................................................................... 11

3 INSTRUMENT SPECIFICATIONS..................................................................12

3.1 Technical Speci!cations...................................................................... 12

3.2 Enclosure Dimensions......................................................................... 16

4 SENSOR SPECIFICATIONS ..........................................................................17

4.1 Single Channel Gas Sensor Options ................................................... 17

4.2 Dual Channel Gas Sensor Options...................................................... 19

4.3 Calibration Extending Firmware (CEF) and Sensor Aging................. 20

5 INSTRUMENT FEATURES ............................................................................21

5.1 Exterior Enclosure................................................................................ 21

5.2 Interior System Layout......................................................................... 22

6 INSTALLATION ............................................................................................23

6.1 Special Considerations for Different Types of Sensors..................... 23

6.2 General Safety Warnings ..................................................................... 24

6.3 Protection Against Electrical Risks..................................................... 24

6.4 Protection Against Mechanical Risks................................................. 25

cGas 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................................................................................ 28

6.6.2 Enclosure Bottom ........................................................................... 29

6.7 Wiring Connections.............................................................................. 29

6.7.1 Digital Wire Gauge vs Run Length ............................................... 32

6.7.2 Wiring the Relay Smart Baord (models with Option -RLY)...... 33

7 BASIC SYSTEM OPERATION .......................................................................33

7.1 Power-up and Warm-up Process from Factory.................................. 33

7.2 Navigating the Menu Structure ........................................................... 34

7.3 Accessing the Menu with Passcodes................................................. 35

7.4 Change Units (oC or oF) of Temperature Readings............................. 37

7.5 Temperature and/or Relative Humidity Offset ................................... 37

7.6 Test Functions...................................................................................... 39

7.6.1 Test Readings / Digital Output ..................................................... 39

7.6.2 Test Relay (models with Option -RLY)......................................... 40

8 MODBUS & BACNET CONFIGURATION........................................................41

8.1 Changing Digital Communication Type in the Field........................... 41

8.2 Con!guring Modbus® Settings........................................................... 42

8.2.1 Change Modbus® MAC Address................................................. 43

8.2.2 Change Modbus® Baud Rate....................................................... 43

8.2.3 Modbus® Holding Registers ........................................................ 44

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

8.3 Con•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

cGas 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.

This product must be installed by a qualiﬁed electrician or factory trained

technician and according to instructions indicated in this manual. This

instrument should be inspected and calibrated regularly by a qualiﬁed and

trained technician.

This instrument has not been designed to be intrinsically safe. For your safety,

do not use it in classiﬁed hazardous areas (explosion-rated environments).

INSTRUMENT SERIAL NUMBER:

______________________________________________________

PURCHASE DATE:

______________________________________________________

PURCHASED FROM:

______________________________________________________

Rev. A | 2020.03 cGas 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 ﬁlters), to be free from defects in materials and workmanship for a period

of two years from the date of purchase from our facility. The sensors have a

warranty period of one year on a pro-rated basis from the date of purchase

from our facility. This warranty is limited to the mechanics of the physical

sensor components and as such, should the sensor become defective within

this warranty period, we will repair or replace it at our discretion. This warranty

does not extend to sensors that have been poisoned by external compounds

such as, but not limited to, extreme gas concentrations, paint fumes, excessive

dust, debris, etc. or to sensors that have been improperly zeroed, calibrated

or altered in any way. If it is determined within 90 days of purchase that a

sensor is malfunctioning or unable to remain calibrated due to no fault of its

placement or treatment, the instrument may be sent back to the factory for a

free calibration service.

The warranty status may be affected if the instrument has not been operated,

calibrated or maintained as per the instructions in the instrument’s Operation

Manual or if the instrument has been abused, damaged or altered in any way.

This instrument is only to be used for purposes stated herein. The manufacturer

is not liable for auxiliary interfaced equipment or consequential damage.

Due to ongoing research, development and product testing, the manufacturer

reserves the right to change speciﬁcations without notice. The information

contained herein is based on data considered accurate. However, no warranty is

expressed or implied regarding the accuracy of this data.

All returned goods (whether under warranty or not) must be pre-authorized

by obtaining a return merchandise authorization (RMA) number and shipped

back to the manufacturer by prepaid freight. Contact the manufacturer for an

RMA number and the procedures required for product transport.

cGas 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.

Repairs are warranted for 90 days after date of shipment (sensors have

individual warranties). Should your instrument require non-warranty repair, you

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 must be accompanied with an RMA number.

If CETCI is to do the repair work, you may send the instrument, prepaid, to:

Attention: Service Department

Critical Environment Technologies Canada Inc.

Unit 145, 7391 Vantage Way

Delta, BC, V4G 1M3

Always include your Returned Merchandise Authorization (RMA) number,

address, telephone number, contact name, shipping / billing information, and

a description of the defect as you perceive it. You will be contacted with a cost

estimate for expected repairs, prior to the performance of any service work.

For liability reasons, CETCI has a policy of performing all needed repairs to

restore the instrument to full operating condition.

Pack the equipment well (in its original packing if possible), as we cannot be

held responsible for any damage incurred during shipping to our facility.

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.

Modbus® is a registered trademark of Gould Inc. Corporation.

BACnet® is a registered trademark of American Society of Heating,

Refrigeration and Air Conditioning (ASHRAE).

1.5 Disclaimer

Under no circumstances will CETCI be liable for any claims, losses or damages

resulting from or arising out of the repair or modiﬁcation of this equipment

by a party other than CETCI service technicians, or by operation or use of the

equipment other than in accordance with the printed instructions contained

within this manual or if the equipment has been improperly maintained or

subjected to neglect or accident. Any of the forgoing will void the warranty.

Under most local electrical codes, low voltage wires cannot be run within the

same conduit as line voltage wires. It is CETCI policy that all wiring of our

products meet this requirement.

It is CETCI policy that all wiring be within properly grounded (earth or safety)

conduit.

1.6 Revisions

This manual was written and published by CETCI. The manufacturer makes

no warranty or representation, expressed or implied including any warranty of

merchantability or ﬁtness for purpose, with respect to this manual.

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

All information contained in this manual is believed to be true and accurate at

the time of printing. However, as part of its continuing efforts to improve its

products and their documentation, the manufacturer reserves the right to make

changes at any time without notice. In addition, due to improvements made to

our products, there may be information in this manual that does not exist in the

version of the product the user has. 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

Telephone: +1.604.940.8741

Fax: +1.604.940.8745

Email: [email protected]

Website: www.critical-environment.com

In no event will CETCI, its oﬃcers or employees be liable for any direct, special,

incidental or consequential damages resulting from any defect in any manual,

even if advised of the possibility of such damages.

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. Ideal for monitoring toxic, combustible and

refrigerant gases in non-hazardous (non-explosion rated) environments such

as enclosed parking facilities, commercial HVAC, greenhouses, recreational

facilities, refrigeration plants, manufacturing plants and other light industrial

applications.

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