TDLS8000 No Gas Signal - Decision Tree
Step-by-step troubleshooting for No Gas Signal alarms:
- Check measurement path for obstruction
- Clear → Next step
- Blocked → Clean path
- Verify gas reaches analyzer
- Present → Next step
- Absent → Restore gas flow
- Check laser output and detector
- Normal → Next step
- Abnormal → Repair/replace laser or detector
- Test electronics module
- Functional → Alarm should clear
- Faulty → Replace electronics module