Honeywell GM-1, 19546GM1 Operation continued, G Maintenance, H Replacement Parts, mVDC

3 Operation continued

G Maintenance H Replacement Parts

The Manning GM-1 is designed for long life and high reliability. Honeywell Analytics recommends checking signal voltages monthly and logging them on the data sheet included with your Manning GM-1. Additionally, the sensor being monitored should be exposed to the target gas on a monthly basis while all alarm functions are verified at the Manning GM-1. This will test the sensor and any equipment con- nected to the relays in addition to the Manning GM-1.

For replacement parts, contact Honeywell Analytics. Be sure to give serial number and model number of unit.

Figure 4: Troubleshooting the Manning GM-1 Gas Monitoring Alarm System

Display power supply voltage

+20V

VDC

Black	Red
-	+
			WARNING	ALARM
	TP	TP	ADJUST	ADJUST
	GND	+20V			BOT	TOP
	7		TP	TP	TP
			WARNING	ALARM	SIG		DRAW
			WARNING		ALARM	FAULT
			RELAY		RELAY	RELAY
0.4 - 2.0 V							CURRENT
VDC	AC fuse
							TP
	1		6

Sensor current draw

(1mV per 10 mA)

SENSOR DEPENDENT

mVDC

Black	Red
-	+

+24V

VDC

Black	Red
-	+

Signal from sensor

						+	C11			+
		FUSE RATING
		250V 1.0 AMP
L	N	NO	C	NC	NO	C	NC	NO	C	NC
	120 VAC		WARNING			ALARM			FAULT
			RELAY*			RELAY*			RELAY*

MODEL G/M

MAINBOARD REV D

+

SHLD GND +24 SIG

Black	Red
-	+

Power supply voltage to sensor

Risk of electrical shock. Potential hazard.

Manning GM-1 Gas Monitoring Alarm System 19546 GM1 07/09 REVD Copyright © 2009 Honeywell Analytics. All Rights Reserved. 12