Detcon DM-534C - Manual (Page 19)

DM-534C Oxygen Sensor Assembly
DM-534C O2 Sensor Instruction Manual Rev. 1.4 Page 15 of 18
9.0 TROUBLE SHOOTING
Memory or Error Reports
1. Reinitialize Sensor Unplug transmitter and replug transmitter then swipe magnet over PGM 1 in the
first 3 seconds. This will clear the processor and recover from error state. Remember to put in all
customer settings for range, alarm and cal gas level after re-initialization.
Non-readable Display
1. If display has blue background when hot, install sunshade to reduce temperature.
2. If poor contrast, adjust contrast pot accordingly.
Nothing Displayed – Transmitter not responding
1. Verify condulet has no accumulated water or abnormal corrosion.
2. Verify required DC power is applied to correct terminals.
3. Swap with a known good transmitter to determine if transmitter is faulty.
Bad 4-20 mA Output or RS485 Output
1. Check that wiring is connected to correct terminal outputs.
2. Swap with a known good transmitter to determine if transmitter is faulty.