Related Manuals for TQ Environmental GD233
Summary of Contents for TQ Environmental GD233
- Page 1 GD233 SENSOR DIFFUSION GAS MONITOR OPERATING MANUAL TQ Environmental Limited Tel: +44 (0) 1924 271013 Silkwood Court Fax: +44 (0) 1924 264420 Wakefield WF5 9TP Email: sales@tqenv.com United Kingdom Web: www.tqenv.com...
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Page 2: Table Of Contents
TQ Environmental Limited CONTENTS PAGE Proprietary Copyright Warning, Cautions and Notes Safety Warnings Section 1 Description General description Sensor unit Gases monitored Performance specifications Storage Section 2 Installation Guidelines Mechanical installation Electrical installation Section 3 Operation General Start up General Operation 3.31... -
Page 3: Proprietary
TQ Environmental Limitrd. While great efforts have been made to assure the accuracy and clarity of this document, TQ Environmental Limited assumes no liability resulting from any omissions in this document, or from misuse of the information obtained herein. -
Page 4: Safety Warnings
TQ Environmental Limited SAFETY WARNINGS THE GD233 CARBON DIOXIDE SENSOR MUST ONLY BE USED IN AREAS WHERE POTENTIALLY FLAMMABLE GASES ARE NOT PRESENT. FOR SAFETY REASONS, THE GD233 SENSOR MUST BE INSTALLED, OPERATED AND SERVICED BY QUALIFIED PERSONNEL ONLY. READ AND UNDERSTAND THIS INSTRUCTION MANUAL COMPLETELY BEFORE OPERATING THE GD233 SENSOR. -
Page 5: General Description
This technical manual covers the use of the GD233 CO Sensor as a diffusion type sensor. -
Page 6: Performance Specifications
The GD233 CO Sensor is a sensitive instrument and as such should be stored properly when not in use. The GD233 CO Sensor contains static sensitive devices and should not be stored in an area of high static electrical charge. The environment it is stored in should not involve direct sunlight and be dust free. -
Page 7: Installation Guidelines
The sensor should be sited in a position out of direct sunlight and in an area not subject to washing with jets of water. To ensure continued reliable operation of the GD233 CO Sensor, the following installation guidelines should be observed: CAUTION The calibration of the sensor may be affected by excessive direct sunlight. - Page 8 TQ Environmental Limited Connections 1 to 3 Connections 4 to 13 Internal Control Button 10 11 12 13 Figure 2. Electrical Connections Connection Function RS485 ground RS485 “A” (Note a) RS485 “B” Power 0v (Note c) Power +9 to +24 v DC 4 –...
- Page 9 TQ Environmental Limited Notes:- “a”. The option of RS485 output is factory fitted Two core cable with overall screen should be used for the RS485 connection “b”. The buzzer and volt free alarm outputs are only available if factory fitted.
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Page 10: General
TQ Environmental Limited SECTION 3 – OPERATION Concentration Indicator Auto-Span Initiated Auto-Zero Initiated External Control Button Concentration Alarm 1 Status Concentration Alarm 1 Status Figure 2:- Front Panel Functions GENERAL Please refer to Figure 2 for the position of LEDs and button. -
Page 11: Startup
The zero point (0ppm CO ) will have been established in the factory using nitrogen or CO free air. In its intended application the GD233 CO Sensor may have its zero point set using air thus eliminating any offset due to the natural presence of CO in the atmosphere. -
Page 12: Auto Zero
The sensor unit may require corrective maintenance if the output current is at a maximum level, even if no combustible gas is present. Refer the unit to TQ Environmental PLC for service. If the unit ever becomes defective then it is necessary to refer the unit to a local TQ representative or contact TQ directly.
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