Heath Consultants Optical Methane Detector (OM) User Manual
Page 15
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Vehicle Grounding Strap
A vehicle-grounding strap is included in the OMD mounting
kit. The purpose of this strap is to prevent the buildup of an
Electro-static charge, thereby preventing any condition of
Electro-static discharge between the operator and the display
unit, which can cause a reset condition of the display unit. The
ground strap mounting location on the vehicle is at the discre-
tion of the customer. To ensure proper operation, however,
certain conditions need to be observed.
·Ground strap must be mounted to the vehicle chassis. Avoid
mounting to any surface that is painted or plated.
·Ground strap should have a minimum of three inches of the
strap in contact with the surface being traveled over.
I
NSTALLATION
Display Connectors:
There are three connectors on the side of the display box. The
first is for the system cable which comes from the power box
connector marked “Display.” Next is the RS-232 connector,
which is to connect a computer for data logging, etc. Then
there is a 1/8” phone jack for connecting an external speaker.
When a phone plug is plugged into the speaker jack the inter-
nal alarm speaker is disabled.