What are the reasons for the instability of the ultraviolet flame detector?

The primary reasons for the instability of UV flame detectors may include contaminated probe lenses, decreased sensor sensitivity, power issues, connection problems, and interference sources.

‌Measures to be taken include:

Probe Lens Cleaning: Regularly wipe the probe lens to maintain its cleanliness and clarity, preventing contamination from affecting signal reception.

Sensor Replacement: If sensors have been in use for an extended period, their sensitivity may decline, and it is advisable to replace the UV probe promptly.

Power and Connection Inspection: Verify that power is supplied properly and ensure the connections between the probe and module are secure.

‌Identify Interference Sources: Check for any interference sources (such as welding) that may affect the detector's normal operation, and adjust the sensor angle or shield the interference source if necessary.

These measures effectively reduce the issue of unstable detection by ultraviolet flame detectors.