
8 Operation............................................................................................ 63
8.1 Safety......................................................................................................... 63
8.1.1 Check before start-up.............................................................. 63
8.2 Start-up procedures for GM32 Ex versions............................................. 63
8.3 GM32 operator panel............................................................................... 64
8.3.1 LEDs.......................................................................................... 65
8.3.2 Function buttons...................................................................... 65
8.3.3 Setting the display contrast.................................................... 66
8.3.4 Menu tree................................................................................. 67
8.3.4.1 Diagnosis................................................................. 68
8.3.4.2 Check cycle - results of last check cycle............... 68
8.3.4.3 Alignment check (option) - automatic optical
alignment check..................................................... 69
8.3.4.4 Adjustment.............................................................. 70
8.3.4.5 Maintenance mode - set Maintenance mode ...... 72
9 Maintenance...................................................................................... 73
9.1 Safety ........................................................................................................ 73
9.2 Maintenance plan..................................................................................... 74
9.2.1 Consumable parts, expendable parts and spare parts........ 74
9.3 Preparation work...................................................................................... 74
9.4 Checking the protective gas feed............................................................ 75
9.4.1 Function test of the pressurized enclosure system............... 75
9.5 Swiveling out and removing the SR-unit................................................. 75
9.6 Visual inspection....................................................................................... 76
9.7 Cleaning the window................................................................................ 77
9.8 Check/replace the desiccant cartridge................................................... 78
9.9 Replacing the activated charcoal bag..................................................... 78
9.10 Replacing the sender lamp...................................................................... 80
9.11 Cleaning the purge air unit....................................................................... 82
10 Troubleshooting................................................................................. 83
10.1 Safety......................................................................................................... 83
10.2 Visual inspection....................................................................................... 84
10.3 Device not functioning.............................................................................. 84
10.4 Overpressure monitoring failure.............................................................. 84
10.5 Measured values clearly incorrect........................................................... 86
10.6 Sample gas penetrating........................................................................... 86
10.7 Corrosion on measuring probe or flange................................................. 86
10.8 Measured value blinks............................................................................. 87
10.9 Error messages......................................................................................... 88
10.9.1 Example of an error message................................................. 88
10.9.2 Error messages........................................................................ 89
10.10 Inadequate purge air supply.................................................................... 95
10.11 Malfunctions on the connection unit...................................................... 95
CONTENTS
8015558/YYJ8/V1.7/2016-07 | SICK O P E R A T I N G I N S T R U C T I O N S | GM32-Ex 5
Subject to change without notice