Related Manuals for Critical Environment Technologies CGAS-A-VLT-NH3-S
Summary of Contents for Critical Environment Technologies CGAS-A-VLT-NH3-S
- Page 1 Addendum for cGas Detector Operation Manual Rev. B | 2022.09 cGas Detector Ammonia Vent Line Transmitter www.critical-environment.com...
- Page 2 ______________________________________________________ PURCHASE DATE: ______________________________________________________ PURCHASED FROM: ______________________________________________________ If you have questions, comments or require more information, please contact us at: 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 Email: help@cetci.com...
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Page 3: Table Of Contents
Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum TABLE OF CONTENTS 1 INTRODUCTION ....................4 1.1 General Description ........................4 1.2 Key Features ..........................4 2 INSTRUMENT SPECIFICATIONS ................ 5 2.1 Technical Specifications ......................5 2.2 Enclosure Dimensions ......................7 2.3 Exterior Enclosure - Front ....................... -
Page 4: Introduction
cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09 1 INTRODUCTION 1.1 General Description The cGas Ammonia Vent Line Detector is designed for continuous monitoring of ammonia levels in the vent line of refrigeration systems, including the detection of equipment failure in ammonia plant vent stack applications. -
Page 5: Instrument Specifications
Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum 2 INSTRUMENT SPECIFICATIONS 2.1 Technical Specifications SENSOR Sensor Type Catalytic Gas Type Ammonia (NH 0 - 3.00% volume range Range Measures to 2 decimal places, tolerant to 17% volume Response Time T <... - Page 6 Pollution Degree Degree 2 Altitude below 2,000 m CERTIFICATION Model: CGAS-A-VLT-NH3-S or CGAS-D-VLT-NH3-S S/N: CGASA1807B00010 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.
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Page 7: Enclosure Dimensions
Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum 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 part 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. -
Page 8: Exterior Enclosure - Front
cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09 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. 2.3 Exterior Enclosure - Front ... -
Page 9: Exterior Enclosure - Back
Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum 2.4 Exterior Enclosure - Back The sensor is potted into a 5 cm / 2 in long pipe fitting that protrudes from the back of the enclosure. ... -
Page 10: Sensor Specifications And Considerations
cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09 Be careful not to trap the wire outside the enclosure when closing the door. 3 SENSOR SPECIFICATIONS AND CONSIDERATIONS The cGas Ammonia Vent Line Detector comes with a catalytic ammonia sensor potted inside the 5cm / 2 in long pipe fitting that protrudes from the back of the enclosure. -
Page 11: Installation
Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum 4 INSTALLATION The cGas Ammonia Vent Line Detector is intended to be permanently mounted indoors on the ammonia vent relief stack above the pressure relief valve. If the device is not installed within two weeks of delivery, the sensor may require a longer warm up time to stabilize (approximately 48 hours) and provide accurate readings. -
Page 12: Remove Detector From Vent Stack
cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09 NOTE: A calibration label should be applied after every calibration to confirm work performed and the date it was confirmed. If a controller is involved, the alarm set points should be indicated on a label on the front door of the enclosure so anyone working in the environment can be aware. -
Page 13: Set Calibration Gas Value
Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum 5.2 Set Calibration Gas Value Check to make sure that the calibration gas value set in the transmitter matches the gas concentration of the calibration gas you are using. How much gas the sensor detects is directly related to the Calibration Gas setting and the actual concentration of calibration gas used during calibration. -
Page 14: Zero (Null) Calibration
cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09 Ammonia is a reactive gas and can adhere to surfaces which can reduce the amount of gas that reaches the sensor. When calibrating an ammonia sensor use a length of tubing no longer than 0.6 to 1 m / 2 to 3 ft. -
Page 15: Troubleshooting Calibration
Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum NOTE: To exit the Span Calibration at any time, press ENTER. From the main display, press ENTER. Enter passcode 3032 using the UP button and ENTER button. Enter Password 3032 Press ENTER to access the Calibrate Menu. -
Page 16: Calibration Adapter Plug Doesn't Fit
cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09 5.6.1 Calibration Adapter Plug Doesn’t Fit Use a slight twisting motion as you gently push the calibration adapter plug (p/n: CET-7000- CAP) into the sensor opening. If it is hard to insert, moisten the O-ring seal slightly then try re-inserting it. - Page 17 Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum The replacement sensor comes potted in a 2” pipe with the wires attached to a Plug & Play smart board that plugs into the main board. The image in Section 4.3 Interior Enclosure shows the sensor installed. NOTE: In order to remove the smart board from the interior of the enclosure, the transmitter needs to be removed from vent stack.
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Page 18: Maintenance
cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09 7 MAINTENANCE There are no serviceable elements other than the calibration instructions outlined in this manual. There are no replaceable components except the sensor. The cGas Ammonia Vent Line Detector requires no assembly and very little maintenance. The transmitter should be regularly inspected and monitored for possible damaging conditions. - Page 19 Rev. B | 2022.09 cGas Ammonia Vent Line Transmitter - Addendum • Check that local area network wiring is correct, especially the A and B lines to make sure they are not swapped between devices on the network. List of Possible cGas Error Codes: (appears on the display in place of the units for a channel) CODE DESCRIPTION...
- Page 20 SAFER AIR EVERYWHERE. www.critical-enviroment.com CGAS-VLT-20220902 Unit 145, 7391 Vantage Way, Delta, BC V4G 1M3 Canada Tel: +1.604.940.8741 Toll Free: +1.877.940.8741 © 2022 Critical Environment Technologies Canada Inc. All rights reserved. Data in this publication may change without notice.
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