Ampcontrol Pty Ltd
– ABN 28 000 915 542
GASGUARD CH4 GAS SENSOR USER MANUAL
GSB076 Version 6
– March/2019
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 8 of 25
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PRODUCT OVERVIEW
Ampcontrol’s Gasguard Flammable Gas Sensor/Transmitter is supplied complete with an amplifier and a
Liquid Crystal Display.
The Gas sensor is housed in a cast stainless steel enclosure, has been approved to be intrinsically safe
and is suitable for use in a Zone 0 hazardous area. A remote head version with up to ten metres of cable
is also available for use on mobile machinery such as roof bolters and continuous miners.
Key Features
Rugged Construction
Reliable
Certified Intrinsically Safe
– Ex ia
LCD Display
Non-Intrusive Closed Case Calibration
NOTE
This manual provides commissioning, calibration and maintenance
instructions for the Ampcontrol Gasguard Sensor Units. Because the
units are passive monitoring devices, operating instructions are not
applicable to this equipment.
NOTE
The chemical symbols for toxic-gases and oxygen are used extensively
throughout this manual.
The Gasguard sensor units consist of:
Catalytic - Methane Sensor (CH4)
Amplifier PCB
For which the following instructions and diagrams are included in this manual:
Amplifier PCB Description
Sensor Wiring Diagrams
Stainless Steel Housing Enclosure Dimensions
Unique part numbers in accordance with the following scheme identifies the sensor unit configurations:
See section 8 for Catalytic sensor Item Numbers.
NOTE
In the part numbers listed, CH4 represents the chemical symbol for
methane, the gas detected by this sensor.
