Manual Release Date – June 8, 2017
Manual Part No. – 80002-044
Table of Contents
1.0 INTRODUCTION....................................................................................................................................................................2
1.1 Unpack.............................................................................................................................................................................................2
1.2 Check Order.....................................................................................................................................................................................2
1.3 Serial Numbers.................................................................................................................................................................................2
2.0 COMPONENTS OF THE CO-GUARD........................................................................................................................................3
2.1 CO-GUARD elements........................................................................................................................................................................3
2.2 CO-GUARD Operational Features ....................................................................................................................................................3
2.3 Circuit Board Features.....................................................................................................................................................................5
3.0 INSTALLATION.....................................................................................................................................................................6
3.1 Mounting CO-GUARD......................................................................................................................................................................6
3.2 Wiring the CO-GUARD.....................................................................................................................................................................7
3.2.1 Air Supply ....................................................................................................................................................................................................... 7
3.2.2 Power Supply.................................................................................................................................................................................................. 7
3.2.3 Relay Contacts................................................................................................................................................................................................ 8
4.0 OPERATION .........................................................................................................................................................................9
4.1 Start Up CO-GUARD ........................................................................................................................................................................9
4.1.1 Typical Start Up.............................................................................................................................................................................................. 9
4.2 Normal Display Mode....................................................................................................................................................................10
4.2.1 Alarm Conditions CO-GUARD .......................................................................................................................................................................10
5.0 MAINTENANCE ..................................................................................................................................................................11
5.1 Maintenance Menus.......................................................................................................................................................................11
5.2 Calibration of the CO-GUARD........................................................................................................................................................13
5.2.1 Exit Maintenance Menu................................................................................................................................................................................ 14
5.2.2 Zero Adjust.................................................................................................................................................................................................... 14
5.2.3 Gas Span....................................................................................................................................................................................................... 15
5.2.4 Alarm Set Points........................................................................................................................................................................................... 16
5.2.5 Span Set ........................................................................................................................................................................................................ 16
5.4 Sensor Replacement.......................................................................................................................................................................17
6.0 REPLACEMENT PARTS .......................................................................................................................................................18
7.0 TECHNICAL DATA AND SPECIFICATIONS.............................................................................................................................18
List of Tables
Table 1 : Relay Failsafe Settings..................................................................................................................................................8
Table 2: Factory Alarm Set Points.............................................................................................................................................10
Table 3: CO-Guard Maintenance Menus Sequence...................................................................................................................11
Table 4: Calibration Gas............................................................................................................................................................14
List of Illustrations
Figure 1: External CO-Guard Features........................................................................................................................................4
Figure 1a: Optional Regulator and Sample Air Hose ..................................................................................................................4
Figure 2: CO-Guard Circuit Board Features................................................................................................................................5
Figure 3: Mounting CO-Guard ....................................................................................................................................................6
Figure 4: Power Terminal Connections CO-Guard......................................................................................................................7
Figure 5: Relay Terminal Connections CO-Guard ......................................................................................................................8
Figure 6: CO-Guard Maintenance Menu Flow Chart ................................................................................................................12
Figure 7: Calibration Adapter....................................................................................................................................................13
Figure 8: CO-Guard Sensor Replacement................................................................................................................................
17
Reference Information:
NOTE: [important information about use of instrument]
CAUTION:[affects equipment – if not followed may cause damage to instrument, sensor etc.…]
WARNING:[affects personnel safety – if not followed may cause bodily injury or death.]
Earth Ground
