13.4 Troubleshooting calibration problems ....................................................................................... 70
13.5 Other troubleshooting ...............................................................................................................71
13.5.1 Readings are low. ........................................................................................................ 71
13.5.2 Process readings are erratic or wander. ....................................................................... 73
13.5.3 Readings drift. .............................................................................................................74
13.5.4 Readings are too high ..................................................................................................74
13.6 Other troubleshooting - general ................................................................................................ 74
13.6.1 Current is output too low. ........................................................................................... 74
13.6.2 Alarm relays do not operate properly. ......................................................................... 74
13.7 Simulating inputs - chlorine ....................................................................................................... 75
13.8 Simulating inputs - temperature ................................................................................................ 75
13.8.1 General ....................................................................................................................... 75
13.8.2 Simulating temperature .............................................................................................. 76
Chapter 14 Return of material ........................................................................................................ 79
Contents
Manual iii
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