Ampcontrol Pty Ltd
– ABN 28 000 915 542
DIESELGUARD USER MANUAL
MAG-179 Version 3
– APR/16
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 9 of 27
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“simple apparatus” accessories provided that the entity requirements are adhered to. Accessories for the
Dieselguard System include:
Gas transmitters, RTD’s, Pressure and level switches, LED indicators,
Solenoid valves and Intrinsically Safe display systems.
The Diesel Machine Monitor is pre-configured to detect Methane gas around the vehicle and to provide a
normally energised solenoid supply which will de-energise and hence de-pressurise the vehicle safety
loop (diesel supply valve) in event of high gas readings. The warning signal is pre-set at 1.00% and the
trip function is pre-set to de-energise the solenoid at 1.25% CH4 (as per the requirements of AS/NZS
4871.6:2013 Section 6.4.4).
The Dieselguard Machine Monitor is equipped with wireless capability that allows the user to connect to
the unit, through the use of the Dieselguard Base Station, and configure alarm trip points, provide real
time status information and download logged data.
The Diesel Machine Monitor is designed not to need regular maintenance or access, as such, once fitted
to the machine it does not need to be accessed.
3.2 Diesel Machine Monitor Wireless Antenna
In order for the Diesel Machine Monitor to communicate with the Dieselguard Base Station, it is
necessary to mount the small whip antenna to the vehicle. The antenna is located at the end of the free
coax cable and is protected by a rugged sheath.
When mounting the antenna, consideration should be given to keeping the actual receiving part (the last
200mm of the cable assembly) away from the metalwork of the vehicle. If the antenna is too close to the
vehicle, then the useable range may be reduced. Ideally, the antenna should be mounted in the same
orientation as the receiver.
NOTE
If the wireless capability is not required, it is
not necessary to cut off
the antenna
. The coaxial cable can be unplugged inside of the Diesel
Machine Monitor’s enclosure.