Bacharach 2772-0803 manual Verifying That a GAS Alarm WAS Caused by GAS

REMOTE INTELLIGENT SENSOR - AREA MONITOR

CONTENTS (continued)

3.13 OPTIONAL FEATURES			3-4
3.13.1	RELAY ALARM OPTION		3-4
3.13.2	PRINTER INTERFACE OPTION		3-4
3.13.3	TEST CARD		3-4
3.14 PRINTER OPERATION & USE (OPTIONAL FEATURE)			3-5
3.14.1	GENERAL		3-5
3.14.2	PRINTER SPECIFICATION		3-5
3.14.3	PRINTOUT MODES		3-6
3.14.3.1		Printing 'On Line'	3-6
3.14.3.2		Print at Intervals	3-6
3.14.3.3 Print on Command			3-6
3.14.3.4 Printed Date Format			3-7
3.14.3.5 Data Storage up to 7 Days			3-7
3.14.3.6		Preventing Data Loss	3-7
3.14.4	PRINTER CARD DESCRIPTION		3-7
3.14.4.1 Real Time Clock			3-7
3.14.4.2 Data Storage			3-7
3.14.4.3		Data Communication	3-7
3.14.4.4		Selection of Printer Baud Rate	3-7
3.14.5	CONNECTING A PRINTER		3-7
3.14.5.1 GMD Printer Connection			3-7
3.14.5.2		Connecting a Non-GMD Printer	3-8
3.14.5.3 Portable Use of a Non-GMD Printer			3-8

4 MAINTENANCE AND TROUBLESHOOTING			4-1
4.1	MAINTENANCE GENERAL		4-1
4.2	VERIFYING THAT A GAS ALARM WAS CAUSED BY GAS		4-1
4.3	CLEARING A SPURIOUS ALARM		4-1
4.4	ADJUST LIGHT LEVELS		4-1
4.5	CHECKING AND ADJUST SYSTEM FLOW RATE		4-2
4.6	DISABLING THE ‘DOOR OPEN’ ALARM		4-2
4.7	ADJUST THE DOOR SWITCH		4-2
4.8	MEASURING PUMP CURRENT		4-3
4.9	RESETTING THE PRINTER OPTION STORAGE		4-3
4.10	CLEANING THE SAMPLING INPUT AND OPTICS BLOCK		4-3
	4.10.1	INTRODUCTION	4-3
	4.10.2	LIGHT LEVEL ADJUSTMENT	4-3
	4.10.3	WHEN TO CLEAN	4-3
	4.10.4	HOW TO CLEAN	4-4
	4.10.5 DIRECT CLEANING OF THE LED’S AND PHOTO DIODES		4-4
	4.10.6 REPLACING THE OPTICS BLOCK		4-4

4.10.7WHAT TO DO IF CLEANING DOES NOT RECTIFY THE PROBLEM .. 4-5

4.11 CHANGING A PUMP		4-5
4.11.1 PREPARATION		4-6
4.11.2 REMOVAL OF THE MECHANICAL CHASSIS		4-6
4.11.3	PUMP REMOVAL	4-6
4.14.4	FITTING THE NEW PUMP	4-6

4.14.5REPLACING THE MECHANICAL CHASSIS AND

SETTING PUMP FLOW 4-6

Instruction2772-0803 Page iii