8. Troubleshooting
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8.
Troubleshooting
The Troubleshooting does not explain the causes of all the malfunctions which occur on the unit. This
simply helps to find the causes of malfunctions which frequently occur. If the detector head shows a
symptom which is not explained in this manual, or still has malfunctions even though remedial actions are
taken, please contact RIKEN KEIKI.
(1) Nothing is displayed on LCD (power cannot be turned on).
<Causes and Actions>
Check that the power voltage indicated at the terminal is appropriate.
If it is lower than the source voltage significantly, there may be a problem in the connected safety
maintaining device, cable or cable connection.
(2) Abnormal operations
<Causes and Actions>
A sudden surge noise can be the cause. To recover, turn OFF the detector head power and then
turn it ON again to restart.
If such a symptom is observed frequently, take appropriate measures to eliminate the noise.
(3) Span adjustment impossible
<Causes and Actions>
Check that the calibration gas concentration is appropriate.
Use the proper calibration gas.
The sensor sensitivity may be deteriorated.
The sensor needs to be replaced.
(4) Fault indication appears.
1. System abnormality "E-00"
<Causes and Actions>
An abnormality occurs in the internal part of the detector.
Contact RIKEN KEIKI.
2. Sensor connection abnormality "E-01"
<Causes and Actions>
The sensor has not been connected, or poor connection of the connector occurs.
Check that the sensor is attached and that the sensor is attached securely to the connector. If the
situation does not improve, contact RIKEN KEIKI.
