Critical Environment Technologies cGas Detector Operation Manual

Rev. A | 2019.07

cGas Detector Digital Transmitter

Operation Manual

www.critical-environment.com

cGas Detector Digital Transmitter - Operation Manual Rev. A | 2019.07

TABLE OF CONTENTS

1 POLICIES ..........................................................................................................5

1.1 Important Note ................................................................................................5

1.2 Warranty Policy ................................................................................................6

1.3 Service Policy ...................................................................................................7

1.4 Copyrights ........................................................................................................8

1.5 Disclaimer ........................................................................................................8

1.6 Revisions ..........................................................................................................8

2 INTRODUCTION .............................................................................................9

2.1 General Description ..........................................................................................9

2.2 Key Features ...................................................................................................10

3 INSTRUMENT SPECIFICATIONS .................................................................11

3.1 Technical Speci cations ..................................................................................11

3.2 Enclosure Dimensions ....................................................................................14

4 SENSOR SPECIFICATIONS ...........................................................................15

4.1 Single Channel Gas Sensor Options ................................................................15

4.2 Dual Channel Gas Sensor Options ...................................................................17

4.3 Calibration Extending Firmware (CEF) and Sensor Aging................................18

5 INSTRUMENT FEATURES .............................................................................18

5.1 Exterior Enclosure ..........................................................................................18

5.2 Interior System Layout ................................................................................... 19

6 SYSTEM OPERATION & CONFIGURATION ................................................20

6.1 Navigating the Menu Structure ......................................................................20

6.2 Accessing the Menu with Passcodes ...............................................................21

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6.3 Display Settings .............................................................................................22

6.3.1 Adjust Display Brightness ................................................................................23

6.3.2 Display Con gurations ....................................................................................23

6.3.3 Display or Hide Line 1 and/or 2 .......................................................................24

6.4 Alarm Status, Fault Detection and Communication Failure Noti cations ........25

6.5 Setting Channel Alarm Setpoints, Direction and Hysteresis ............................26

6.6 Enable / Disable Channels ..............................................................................29

6.7 Change Units (degC or degF) of Temperature Readings .................................. 30

6.8 Temperature and/or Relative Humidity O set ................................................ 31

6.9 Test Functions ................................................................................................ 32

7 MODBUS AND BACNET CONFIGURATION...............................................34

7.1 Changing Communication Type (Modbus®/BACnet®) in the Field ..................34

7.2 Con guring Modbus® Settings .......................................................................35

7.2.1 Change Modbus® MAC Address .......................................................................35

7.2.2 Change Baud Rate ........................................................................................... 36

7.2.3 Modbus® Holding Registers ............................................................................37

7.3 Con guring BACnet® Settings ........................................................................ 37

7.3.1 Change BACnet® MAC Address ........................................................................37

7.3.2 Change BACnet® Instance ID ...........................................................................38

7.3.3 Change BACnet® Baud Rate .............................................................................38

7.3.4 BACnet® PICS Information ...............................................................................39

8 PLUG & PLAY SMART SENSOR REPLACEMENT .......................................46

8.1 How to Replace or Add a New Smart Sensor Board ........................................46

8.2 Read from Sensor ...........................................................................................47

8.3 Write to Sensor ...............................................................................................49

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9 CALIBRATION ................................................................................................49

9.1 Calibration Speci cations ............................................................................... 49

9.1.1 Gas ..................................................................................................................49

9.1.2 Regulators & Flow ........................................................................................... 50

9.1.3 Adapters..........................................................................................................50

9.1.4 Calibration Frequency .....................................................................................50

9.1.5 Gas Testing Frequency (Bump Testing) ............................................................51

9.1.6 Sticky Gases.....................................................................................................51

9.2 Calibrating the Internal Sensor(s) ..................................................................51

9.2.1 Set Calibration Gas Value .................................................................................51

9.2.2 Zero (Null) Calibration .....................................................................................53

9.2.3 Span Calibration ..............................................................................................54

9.3 Troubleshooting Calibration ...........................................................................56

9.3.1 Calibration Adapter Plug Doesn’t Fit ................................................................56

9.3.2 Zero Fault ........................................................................................................ 56

9.3.3 Span (Calibration) Fault ................................................................................... 57

9.3.4 Zero Override ...................................................................................................57

9.3.5 Span Override..................................................................................................57

9.4 Calibrating an Oxygen Sensor ........................................................................58

10 ACCESSORIES .............................................................................................60

10.1 Splash Guard (Option -S) ..............................................................................60

10.2 Calibration Adapter Clip ”Cal Clip” ................................................................ 60

10.3 Splash Guard for Sticky Gases (Option -SN) ..................................................61

10.4 Metal Protective Guard ................................................................................62

10.5 Calibration Kit ..............................................................................................62

11 MAINTENANCE ..........................................................................................63

12 TROUBLE SHOOTING ................................................................................64

Rev. A | 2019.07 cGas Detector Digital Transmitter - Operation 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 quali ed electrician or factory trained technician and according to instructions indicated in this manual. This instrument should be inspected and calibrated regularly by a quali ed and trained technician.

This instrument has not been designed to be intrinsically safe. For your safety, do not use it in classi ed hazardous areas (explosion-rated environments).

INSTRUMENT SERIAL NUMBER:

______________________________________________________

PURCHASE DATE:

______________________________________________________

PURCHASED FROM:

______________________________________________________

cGas Detector Digital Transmitter - Operation Manual Rev. A | 2019.07

1.2 Warranty Policy

Critical Environment Technologies Canada Inc. (the manufacturer) warrants this gas monitoring instrument, (excluding sensors, battery packs, batteries, pumps and  lters), 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, c alibrated 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 a ected 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 speci cations 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 goods must be shipped to the manufacturer by prepaid freight. All returned goods (whether under warranty or not) must be pre-authorized by obtaining a return merchandise authorization (RMA) number. Contact the manufacturer for an RMA number and the procedures required for product transport.

Rev. A | 2019.07 cGas Detector Digital Transmitter - Operation Manual

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 o ce 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.

cGas Detector Digital Transmitter - Operation Manual Rev. A | 2019.07

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 par t, 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 modi cation 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  tness for purpose, with respect to this manual.

All information contained in this manual is believed to be true and accurate at the time of printing. However, as part of its continuing e orts to improve its products and their documentation, the

Rev. A | 2019.07 cGas Detector Digital Transmitter - Operation Manual

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  rmware, 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: marketing@cetci.com Website: www.critical-environment.com

In no event will CETCI, its o cers 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 o ers  exible customization options with the purpose of meeting

your speci c 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.

The sensors utilized in this device are accurate enough to measure to Occupational Health & Safety

cGas Detector Digital Transmitter - Operation Manual Rev. A | 2019.07

(OHS) hazardous levels for toxic gases. The transmitter operates by di usion.

2.2 Key Features

• 1 or 2 gas channel operation

• User con gurable Modbus® RS-485 RTU or BACnet® MS/TP communication protocols for communication with a Controller or Building Automation System (BAS)

• Easy Plug & Play Smart sensor replacement at end of life

• Customizable sensor and option combinations to meet speci c application requirements

• 24 volt DC or (ground referenced) AC power

• 4-conductor shielded network wiring (daisy-chain)

• In  eld upgradable  rmware/con guration via USB connection

• Bright LCD display

• Option -LT: Low temperature package for improved usability in cold environments

• Option -RHT: Relative Humidity and Temperature sensor (digital CO and CO2 models only)

• Option -S: Splash guard, factory installed, IP54 rated enclosure

• Option -SN: Splash guard, factory installed, for Cl2, HCI or O3 sensors only

• Standard water / dust tight, corrosion resistant enclosure (drip proof)

• Copper coated interior to reduce RF interference

• RoHS compliant circuit boards

• Auto resetting fuse

NOTE: Some gas sensor types and Options are restricted to certain models.

If after reading through the manual, you have any questions, please do not hesitate to contact our service department for technical support.

Rev. A | 2019.07 cGas Detector Digital Transmitter - Operation Manual

3 INSTRUMENT SPECIFICATIONS

3.1 Technical Speci cations

MECHANICAL

Enclosure

Weight 400 g / 14 oz

Size 127 mm x 127 mm x 71 mm / 5.0 in x 5.0 in x 2.8 in

USER INTERFACE

Display (standard)

Display (Option -LT)

USB Port

Push Buttons

Audible Alarm none

ABS / Polycarbonate, IP54 rating with splash guard installed. Copper coated interior to reduce RF interference.

2-line by 16 character graphic LCD, black on green, text prompting for calibration operation and fault indications. Installer

con gurable to suppress reading display.

Optional OLED display for improved usability in low temperature applications, 2-line by 16 character, yellow on black, text prompting for calibration operation and fault indications. Installer con gurable to suppress reading display.

Internal port for USB memory stick connection for  eld con guration/ rmware upgrades

Initiate calibration and menu options with internal UP, DOWN and ENTER push buttons

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ELECTRICAL

16 - 30 VDC, 3 W, Class 2

Power Requirement

12 - 27 VAC, 50-60 Hz, 3 VA, Class 2 24V recommended.

Digital Wiring

VDC or VAC (ground referenced) four-conductor shielded 16 AWG stranded within conduit, network wiring (daisy-chain)

Fuses Automatic resetting thermal

INPUT/OUTPUT

Modbus® ID: 100 (default, con gurable)

Communication

Modbus® RTU (version

1.1b3) RS-485

Baud rate: 19,200 (default, con gurable) Data bits: 8 Start bits: 1 Stop bits: 1 Parity: none

BACnet® MS/TP; ANSI/ASHRAE standard 135 BACnet®

Communication protocol: 135-2012

Communication BACnet® MS/TP (version 1 rev 14) RS-485

Baud Rate: 76,800 (default)

Base Address: 270 (default)

MAC Address: 100 (default)

Parity: no parity

Stop bits: 1

Data bits: 8

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RH and Temperature (Option -RHT)

Available for CO2 and CO models only

ENVIRONMENTAL

Operating Temperature

0°C to 40°C / 32°F to 104°F (standard)

-40°C to 40°C / -40°F to 104°F (with Option -LT)

Operating Humidity 15 - 90% RH non-condensing

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.

Conforms to: CSA-C22.2 No. 205-12, UL508 (Edition 18):2018 Conforms to: EMC Directive 2014/30/EU, EN 50270:2015, Type 1, EN61010 Conforms to: FCC. This device complies with par t 15 of the FCC Rules, Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

cGas Detector Digital Transmitter - Operation Manual Rev. A | 2019.07

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. With the optional splash guard installed, the enclosure is IP54 rated.

NOTE: During calibration, the sensor response time will be slower with a splash guard installed.

Rev. A | 2019.07 cGas Detector Digital Transmitter - Operation Manual

4 SENSOR SPECIFICATIONS

4.1 Single Channel Gas Sensor Options

Electrochemical Sensors Part Numbers Range Lifespan

Ammonia (NH3) CGAS-D-NH3 0 - 500 ppm ± 2 years

Carbon Monoxide (CO) CGAS-D-LCO 0 - 200 ppm ± 6 years

Chlorine (Cl2) CGAS-D-CL2 0 - 5.0 ppm ± 3 years

Chlorine Dioxide (ClO2) CGAS-D-CLO2 0 - 1 ppm ± 2 years

Ethylene (C2H4) CGAS-D-C2H4 0 - 200 ppm ± 2 years

Ethylene Oxide (C2H4O) CGAS-D-EETO 0 - 20 ppm ± 2 years

Fluorine (F2) CGAS-D-F2 0 - 1 ppm ± 2 years

Formaldehyde (CH2O) CGAS-D-CH2O 0 - 5 ppm ± 2 years

Hydrogen (H2) CGAS-D-EH2 0 - 2,000 ppm ± 2 years

Hydrogen Sulphide (H2S) CGAS-D-H2S 0 - 50 ppm ± 2 years

Hydrogen Chloride (HCl) CGAS-D-HCL 0 - 30 ppm ± 2 years

Hydrogen Cyanide (HCN) CGAS-D-HCN 0 - 30 ppm ± 2 years

Hydrogen Fluoride (HF) CGAS-D-HF 0 - 10 ppm ± 2 years

Nitric Oxide (NO) CGAS-D-NO 0 - 100 ppm ± 2 years

Nitrogen Dioxide (NO2) CGAS-D-NO2 0 - 10 ppm ± 6 years

Oxygen (O2) CGAS-D-O2 0 - 25% Vol ± 3 years

Ozone (O3) CGAS-D-O3 0 - 2 ppm ± 2 years

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Phosphine (PH3) CGAS-D-PH3 0 - 5 ppm ± 2 years

Silane (SiH4) CGAS-D-SIH4 0 - 20 ppm ± 2 years

Sulphur Dioxide (SO2) CGAS-D-SO2 0 - 20 ppm ± 2 years

Refrigerant Sensors Part Numbers Range Lifespan

Refrigerant R22 CGAS-D-SR22 0 - 2,000 ppm ± 5 years

Refrigerant R134A CGAS-D-SR134A 0 - 2,000 ppm ± 5 years

Refrigerant R402A CGAS-D-SR402A 0 - 2,000 ppm ± 5 years

Refrigerant R404A CGAS-D-SR404A 0 - 2,000 ppm ± 5 years

Refrigerant R407A CGAS-D-SR407C 0 - 2,000 ppm ± 5 years

Refrigerant R410A CGAS-D-SR410A 0 - 2,000 ppm ± 5 years

Refrigerant R422D CGAS-D-SR422D 0 - 2,000 ppm ± 5 years

Refrigerant R438A CGAS-D-SR438A 0 - 2,000 ppm ± 5 years

Refrigerant R507A CGAS-D-SR507A 0 - 2,000 ppm ± 5 years

TVOCs CGAS-D-STVOC 0 - 500 ppm ± 5 years

Catalytic Sensors Par t Numbers Range

Hydrogen (H2) CGAS-D-CH2-100 0 - 100% LEL ± 5 years

Methane (CH4) CGAS-D-CCH4-100 0 - 100% LEL ± 5 years

Propane (C3H8) CGAS-D-CC3H8-100 0 - 100% LEL ± 5 years

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PID Sensors Part Numbers Range

TVOC CGAS-D-SPL 0 - 30 ppm

TVOC CGAS-D-SPH 0 - 300 ppm

usage / application dependent

Infrared Sensors Part Numbers Range

Carbon Dioxide (CO2)

CGAS-D-CO2-5K 0 - 5,000 ppm

CGAS-D-CO2-5% 0 - 5% vol

± 6 years

4.2 Dual Channel Gas Sensor Options

Two Internal Electrochemical Sensors

Part Numbers Range Lifespan

Carbon Monoxide (CO) and Nitrogen Dioxide (NO2)

Carbon Monoxide (CO) and Ethylene (C2H4)

Carbon Monoxide (CO) and Hydrogen Sulphide (H2S)

Carbon Monoxide (CO) and Oxygen (O2)

Carbon Monoxide (CO) and Nitric Oxide (NO)

CGAS-D-LCO-NO2

CGAS-D-LCO-C2H4 0 - 200 ppm

CGAS-D-LCO-H2S

CGAS-D-LCO-O2

CGAS-D-LCO-NO

0 - 200 ppm 0 - 10 ppm

0 - 200 ppm 0 - 50 ppm

0 - 200 ppm 0 - 25% vol

0 - 200 ppm 0 - 100 ppm

± 6 years

± 6 years ± 2 years

± 6 years ± 3 years

2-3 years

cGas Detector Digital Transmitter - Operation Manual Rev. A | 2019.07

Hydrogen Sulphide (H2S) and Sulphur Dioxide (SO2)

CGAS-D-H2S-SO2

0 - 50 ppm 0 - 20 ppm

2+ years

4.5 Calibration Extending Firmware (CEF) and Sensor Aging

The cGas Detector with integral electrochemical sensor(s) have been programmed with our CEF.

This  rmware takes into consideration the aging of the electrochemical CO and NO2 sensors so that less frequent calibrations are required in less-critical applications such as parking garages. The system tracks the age of the sensor and automatically compensates for the reduced output of the sensor as it ages.

5 INSTRUMENT FEATURES

5.1 Exterior Enclosure

•

Ž Œ

•

Rev. A | 2019.07 cGas Detector Digital Transmitter - Operation Manual

ys yo

NUMBER FEATURE FUNCTION

•

Door Hinge

Display

Sensor Opening

Door Screw S ecures door shut

Lock Slot For security padlock or tie

Secures door to base and allows easy opening and closing

LCD display (standard display)

A B

Allows gas di usion into sensor

5.2 Interior System Layout

NUMBER FEATURE FUNCTION

Programming Buttons

Access menu options and program functions using buttons inside the enclosure. (Arrow up, Enter, Arrow down)

•

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RS-485 Communication

•

Terminals

USB Connection For  rmware and con guration upgrades

Termination Resistor

•

Sockets for sensors and

•

Options boards

Pluggable power and signal terminal for connection to controller and next transmitter.

Network termination resistor. “IN” position includes 120 ohm resistor.

Sensor boards and Options boards plug into the main board using these sockets

6 SYSTEM OPERATION & CONFIGURATION

The cGas Detector continuously monitors target gas concentrations on one or two con 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.

6.1 Navigating the Menu Structure

The three programming push-buttons inside the enclosure are used to navigate through the cGas Detector menu structure. Refer to Section 5.1 Exterior Enclosure for location photo.

ENTER begins a process or moves you to the next screen in the same menu.

The UP or DOWN buttons are used to enter characters/numbers and to navigate to the next menu item.

A line under a character or number indicates that is the space into which you are entering a character or number. Use the ENTER button to move to the next space. Or use the UP or DOWN button to change the value in that space.

Rev. A | 2019.07 cGas Detector Digital Transmitter - Operation Manual

The > symbol indicates that you can edit the menu line item.

After entering and con rming a value you can either Exit the menu or press the UP button to move to the next item in that menu. All menus are circular and will bring you back to the Exit screen. Press ENTER to Exit.

6.2 Accessing the Menu with Passcodes

You have to enter a passcode to access the menu. From the normal operation screen, press ENTER to access the password entry screen. Use the UP or DOWN arrow to scroll to the desired number. Press ENTER to move to the next position. Continue until the full code is entered and press ENTER when  nished.

CODE NAME DESCRI PTION

0001 Test Menu • Test Reading

If con gure as a MODBUS device

• Comm Type

• Comm Mac

1001 Basic Menu

1014 Display Menu

• Comm Baud

If con gured as a BACNET device

• Comm Type

• Comm Mac

• Comm Baud

• Instance ID

• Display Type

• Brightness

• Display Line 1

• Display Line 2

+ 47 hidden pages

Critical Environment Technologies cGas Detector Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual