9. Troubleshooting
9. Troubleshooting
47
Symptom/Display
Causes
Actions
An alarm is
triggered despite of
no abnormalities at
the detection point.
Presence of
interference gas
Disturbances by interference gases, such as
solvents, cannot be eliminated completely. For
information on actions, such as removal filter,
please contact RIKEN KEIKI.
Disturbance by noise
Turn off and restart the monitor.
If a symptom like this is observed frequently, take
appropriate measures to eliminate the noise.
Sudden change in the
environment
When the environment (temperature, etc.) changes
suddenly, the monitor cannot adjust to it and is
affected by it.
In some cases, the monitor triggers an indication
alarm.
Because the monitor cannot be used under sudden
and frequent environmental changes, the user
should take some preventive actions to eliminate
them, for example, relocating the monitor to a place
not directly exposed to ventilation from an air
conditioner.
Deteriorated sensor
sensitivity
Replace the sensor with new one.
Lack of warm-up
Take enough warm-up time.
Span adjustment
impossible
Improper calibration gas
concentration
Use the proper calibration gas.
Deteriorated sensor
sensitivity
Replace the sensor with new one.
