Technical data

1100 Series DAD and MWD Reference Manual 71
Troubleshooting and Test Functions 3
Diode Current Leakage
When the detector is switched on, the processor checks the leakage current of
each of the optical diodes. If the leakage current exceeds the upper limit, the
error message is generated.
Probable Causes
• Defective optical unit.
• Defective detector main board.
Suggested Actions
✔ Exchange the optical unit.
✔ Defective detector main board.