Specifications

Halogen Gas Monitor – MultiZone Remote Display
Instruction 3015-5157 10
Installation Considerations
Warnings and Cautions
WARNING: Electrical installation should be performed by a certified electrician, and
should comply with all applicable NEC/CEC and local electrical safety codes.
WARNING: The AC power ground wire must first be connected to the monitor’s
ground stud. Under no circumstances should this monitor be operated without a
protective ground. Doing so poses a potential shock hazard, and is also a violation of
electrical safety standards applicable to this type of equipment.
WARNING: Explosion hazard! Do not mount the HGM-RD in an area that may contain
flammable liquids, vapors or aerosols. Operation of any electrical equipment in such
an environment constitutes a safety hazard.
WARNING: Shock hazard! Always disconnect AC power before working inside
the monitor.
CAUTION: Drilling holes in the HGM-RD enclosure may damage the unit and will void
the warranty. Please use provided knockouts for electrical connections.
CAUTION: The HGM-RD contains sensitive electronic components that can be easily
damaged. Be careful not to touch or disturb any of these components.
Inspection
The HGM-RD has been thoroughly inspected and tested prior to shipment from the factory. Nevertheless, it
is recommended that the instrument be re-checked prior to installation. Inspect the outside of the enclosure
to make sure there are no obvious signs of shipping damage. Loosen the four screws on the sides of the
enclosure and remove the front panel. Visually inspect the interior of the display for loose components that
may have become dislodged during shipment. If damage is discovered, please contact the nearest
Bacharach Service Center for assistance.
Location of the Monitor
The HGM-RD should be centrally located in the facility (preferably outside of the mechanical room) and
should be easily accessible for visual monitoring and servicing. This is the “split architecture design” for
safety of the operator.
Dirt, grease, and oils can adversely affect the operation of the HGM-RD. The monitor should be installed out
of direct sunlight in a clean, dry area that is not subject to temperature or humidity extremes. Installation of
the monitor in a mechanical room is acceptable provided reasonable environmental conditions exist. If there
is a question, consider installing the unit outside of the mechanical room in a cleaner area of the facility.
The HGM-RD can be located up to 4500 feet from the furthest HGM-MZ. The HGM-RD is a man machine
interface by which you can program the HGM-MZ, acknowledge alarms, and observe conditions inside the
mechanical room. Note that there are two additional alarm relay contacts in the HGM-RD that can be
programmed to alarm with “leak, spill, evacuate, fault or monitor on”.