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System Description
The Manning GM-JR is designed to accept a single
4/20 mA current input signal and provide a 20
segment vertical LED bargraph display which gives a
visual indication of the gas concentration.
The unit has one relay which will trip when a field-
adjustable gas concentration setpoint is exceeded,
allowing the user to incorporate functions such as
ventilation control, remote horns, security system
monitoring, and automatic shutdown.
Designed to be highly reliable when properly installed,
the relay is energized during normal operation, and a
sensor fault monitoring circuit will indicate a fault and
trip the relay if the signal falls below 1.4 mA.
The unit has a power-up delay feature that places the
output in a normal condition for one minute to allow for
sensor stabilization.
The Manning GM-JR will support all Manning sensors,
including oxygen, which requires a down-scale alarm.
Manning GM-JR-F Gas Monitoring Alarm System
19186 GMJRF 10/2006 REVC Copyright © 2006 Honeywell Analytics. All Rights Reserved.
Monitoring Options:
The Manning GM-JR can be mounted in its own NEMA
1 enclosure or in the door of most Manning sensor
enclosures.
In the "Feed-Through Configuration," the Manning GM-
JR can operate anywhere between the sensor and the
readout unit, including either a Manning readout or a
customer-supplied computer. In this configuration, the
Manning GM-JR is powered by the same cable which
powers the sensor.
If ordered in the "Stand-Alone Configuration," the
Manning GM-JR requires a regulated 24 VDC power
supply provided by the installer. Honeywell Analytics
can supply a 120 VAC plug-in DC power supply to
power the Manning GM-JR and associated sensor. In
this case, ask for the "Stand-Alone Configuration"
instruction manual.
Attention: The Manning GM-JR is for use in
non-classified areas only.
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