Alarm: Laser Error
Manufacturer: Yokogawa
Analyzer: TDLS8000 Gas Analyzer
Alarm Description
Laser Error indicates that the TDLS laser emission is unstable or not detected. Accurate gas measurement is not possible until resolved.
Typical Symptoms
- Analyzer shows zero or invalid gas readings
- Repeated laser fault after power-on
- Calibration fails or unstable
Probable Causes
- Laser diode failure
- Laser power supply problem
- Optical alignment misalignment
- Electronics module malfunction
Field Checks
- Check laser power supply voltage
- Inspect laser diode status LED
- Check optical path and mirrors
- Verify electronics module operation
Corrective Actions
- Replace laser diode if defective
- Repair or replace laser power supply
- Realign optical components
- Replace electronics module if necessary