11. Troubleshooting
11-1. Abnormalities on unit
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11
11.
Troubleshooting
The Troubleshooting does not explain the causes of all the malfunctions which occur on the gas detector.
This simply helps to find the causes of malfunctions which may frequently occur.
If the gas detector shows a symptom which is not explained in this manual, or still has malfunctions even
though remedial actions are taken, please contact RIKEN KEIKI.
11-1. Abnormalities on unit
Symptoms
Causes
Actions
The power cannot be
turned on.
The battery level is too low. Replace all the four batteries with new ones.
The POWER button was
released quickly.
For power-on, keep the POWER button
pressed until a blip is heard.
Improper installation of the
battery unit
Check that the batteries are properly installed
to the main unit.
Abnormal operations
Disturbances by sudden
static electricity noise, etc.
Turn off the power once and then turn it on
again (restart).
Cannot operate the gas
detector.
Disturbances by sudden
static electricity noise, etc.
Remove the batteries in a safe place. Then
reinstall them and turn on the power to
perform operations.
System abnormalities
FAIL SYS
□□□
A circuit abnormality
occurred.
Record the display content "FAIL SYS
□□□"
and
then contact RIKEN KEIKI for repair.
A low battery voltage
alarm is displayed.
FAIL BATTERY
The battery level is low.
Turn off the power and replace the dry
batteries with new ones in a safe area.
Air calibration
impossible
FAIL AIR CAL
Fresh air is not supplied
around the gas detector.
Press the RESET button to reset the alarm.
Supply fresh air and then perform air
calibration again.
Sensor abnormalities
FAIL SENSOR
A sensor has failed.
Request RIKEN KEIKI for sensor
replacement.
