4 TX9165-UM-EN-07
4.6.1 Mode 78
4.6.2 Pulse Time 79
4.6.3 Assign Fault 79
4.6.4 And Function 80
4.6.5 Text 80
5. Audio/Visual Alarm
References 81
5.1 Alarm Severity Selection 81
5.2 Assign Fault 82
6. Diagnostics 83
6.1 Over Range Indication on a
Pellistor Gas Sensing
eModule 83
6.2 Absent Sensing Module
Message 84
6.3 Replacing a Sentro Sensing
Module 84
6.4 Low Supply Voltage 85
6.5 Latched Relay Message and
Relay Reset 85
7. Maintenance 86
7.1 Sentro eModules and
rModules 86
7.2 Checking the Response of
Gas Sensing eModules 86
7.3 Service Replacement
Sensing Modules 88
7.4 Replacing a Sentro Sensing
Module 88
7.5 Maintenance and
Calibration Log 91
7.6 Record Keeping 92
7.7 Protection Grid 92
7.8 Servicing and Repair 92
7.9 Disposal 93
8. Sentro 8 Battery Back-up 94
8.1 Intruduction 94
8.2 Battery Back-up 94
8.3 Battery 95
8.4 RS485 Repeater 95
8.5 Ethernet Converter 95
8.6 Battery Back-up Connections 96
8.7 Operation 96
8.7.1 Power-up 96
8.7.2 Power Down 97
8.8 Maintenance 98
8.8.1 Sentro 8 and Battery
Back-up - Check 98
8.8.2 Battery Back-up Discharge
- Test 98
8.8.3 Battery Back-up Cells
- Replace 99
8.9 Repairs 99
Disclaimers 100
Trademarks 100
Document History 100
Contact Details 100
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