Possible Causes: Poor contact, loose locking, shield failure
Troubleshooting Steps:
1. Re-tighten threaded connection to rated torque
2. Clean contact pins with anhydrous ethanol
3. Measure contact resistance (should be ≤50mΩ)
4. Check shield continuity to equipment ground
Possible Causes: Contamination/moisture, damaged insulation components
Troubleshooting Steps:
1. Clean connector housing to remove contaminants
2. Test insulation resistance (≥100MΩ at 500V)
3. Inspect insulation parts for cracks/deformation
Possible Causes: Damaged/misaligned seal ring, loose threads
Troubleshooting Steps:
1. Inspect O-ring for damage, wear or misalignment
2. Reinstall and tighten to 60 cNm rated torque
3. Perform immersion test (IP68: 10m depth for 24h)
Possible Causes: Strain relief failure, poor crimping
Troubleshooting Steps:
1. Check cable clamp/tail clamp for secure fixation
2. Re-test crimp strength (pull test ≥100N)
3. Re-crimp or re-solder cable terminals as needed
Technical Note: For rapid on-site troubleshooting, use a multimeter to check contact resistance and insulation resistance first – these two tests can identify 80% of common M16 connector faults.
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