Manning Systems GM-JR Data sheet

Manning Systems, Inc. provides a complete
line of industrial quality Gas

Alarm

Monitoring Systems for equipment

rooms,
refrigerated spaces, storage facilities,
laboratories and process areas.

Honeywell Analytics
23500 West 105th St., MD400
Olathe, Kansas 66061

1.800.444.9935 or 913.712.5576
fax [phone]
www.honeywellanalytics.com

The Manning Systems GM-JR is a readout/alarm unit that can
be configured in a variety of ways to solve many gas concentration
and alarm needs at a very affordable price. The readout provides
a calibrated 20-segment LED bargraph, alarm and fault LEDs,
plus a relay output with easy trip point adjustment.

T

he GM-JR standard configu-

ration is composed of a single,
rugged, miniaturized board
mounted inside the door of the
enclosure, and a separate
terminal board for the sensor
and/or power cable connections.
The 20-segment LED bargraph
has a calibrated scale that is
specified when ordered. Alarm
trip adjustments are made
easily at 5% increments by a
shorting bar on the back of the
display board.

On power up or after momentary
power loss, the bottom bargraph
segment blinks during a one­minute power-up delay period.

During this time the alarm relay
is forced into its “no alarm”
condition to allow the sensor to
stabilize. After this time delay,
the bargraph will stop blinking,
indicating the readout is armed.

The GM-JR continuously
monitors the incoming 4/20 mA
signal from the sensor. If the
signal drops below 1.4 mA, the
fault LED will illuminate and
the alarm relay will trip. The
alarm relay is always energized
in its normal state, providing
additional safety.

The GM-JR has an easily
adjusted set-point and relay
output in either the “stand-

alone” or “feed through” configu­ration, plus 4/20mA output in
the “feed through” design. With
its own plug-in power supply,
the GM-JR/ Manning sensor
combination provides an
economical answer for local
concentration level information
and control capability

GM-JR

Gas Monitor
Readout /Alarm

Applications

The GM-JR offers unique config­uration possibilities for clients
who have their own computer
control system, OEMs who want
to incorporate gas sensing in
their design and existing
Manning Systems customers
who want remote indication
other than at their main readout.

Key Features

20-segment calibrated bargraph

Power-up delay

Fail-safe design

Easy Trip setting

Relay Output is time delayed

Downscale Alarm Configuration

available for oxygen

Rugged NEMA 1, steel gasketed

enclosure

Continuous fault monitoring

Feed-through Configuration

allows remote readout capa­bility while being powered
from instrument cable (no
remote power supply needed)

Gas Monitor
Readout /Alarm

GM-JR

Power Requirement:

15-24 VDC regulated

Signal Input:

4/20 mA precision differential input
allows this unit to be mounted remotely
and powered from sensor power
(internal resistance drop, 100 ohms)

Maximum Current Draw:

300 mA (in standard configuration and no
upscale indication, the standby current
draw is 100 mA.)

Display:

20-segment LED bargraph, bottom segment
flashes to indicate power up delay, lights
continuously to indicate power on

Trip Setting:

5% increments by use of shorting tab

Alarm Indication:

Red LED

Fault Indication:

White LED (at 1.4 mA or below)

Accuracy:

LED readout provides 5% of full scale reso­lution – trip accuracies at these 5%
increments are within ±1% of set point

Time Delays:

Alarm relay is 10 second delay ON,
30 second delay for RESET after alarm
condition clears.

Power Up Time Delay:

On application of power the alarm relay
will be held in the normal state for one (1)
minute to allow the sensor to stabilize.

Relay Alarm Output:

Relay is rated at 0.5 amp at 24 VDC or
24 VAC – relay will trip on Alarm and Fault
conditions.

Operating Temperatures:

0˚F to 120˚F; Storage, -40˚F to 160˚F

Operating Humidity:

5-95% RH, non-condensing

Weight:

3 lbs.

Dimensions:

6"H x 4"W x 3.5"D

Cable Requirements:

#18/3 shielded cable (Belden #8770) for
runs up to 1,000' – high current draw
sensors may require larger cable
(contact Manning Systems for details)

Enclosure:

16 gauge steel, gasketed, painted

NEMA 1 rated

Options:

Down Scale Alarm for oxygen

Can be mounted in most Manning
Systems sensors

Specifications subject to change without notice.

Specifications

Possible Applications

Calibration Gas Kits are always available
from Manning Systems to maintain and
verify the highest level of total system
performance.

GM-JR in Sensor enclosure

Concentration Display at Sensor

Plug-in Transformer

GM-JR Sensor

OEM Installation

Output to shut

down equipment

24 VDC Supply

GM-JR Sensor

Stand Alone Configuration

120 VAC Plug-in

Power Supply

Relay Output

GM-JR Sensor

Used with Computer

Customer Computer

Monitor at selected

locations

GM-JR Sensor

Used with Manning Systems Main Readouts

GM-10 Readout

Unit located in

maintenance office

Located outside

machine room

Sensor in

machine room

GM-JR 19546 07/ 2009

Copyright © 2009 Honeywell Analytics. All Rights Reserved.

Honeywell Analytics

1-800-538-0363 USA
1-888-749-8878 Canada
[phone] Europe
[phone] Asia Pacific
[phone] Middle East

Corporate Headquarters

405 Barclay Blvd.
Lincolnshire, IL 60069
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www.honeywellanalytics.com