8 Troubleshooting
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8
8
Troubleshooting
The Troubleshooting does not explain the causes of all the malfunctions which occur on the detector. This
simply helps to find the causes of malfunctions which frequently occur. If the 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.
<Abnormalities on Unit>
Symptom/Display FAULT
Causes
Actions
The power
cannot be turned
on.
-
The wiring is not correct.
Connect the wiring properly.
The terminal plate is
removed.
Connect the terminal plate properly.
Abnormalities/momentary
blackout of power supply
system
Provide the rated voltage.
Take measures such as checking or adding
the UPS, power supply line filter and insulation
transformer.
Cable abnormalities
(open circuit/not
connected/short circuit)
Check the wiring of detector and related
devices around it.
Abnormal
operations
-
Disturbances by sudden
surge noise, etc.
Turn off and restart the alarm system.
If such a symptom is observed frequently, take
appropriate measures to eliminate the noise.
System
abnormalities
E-9
●
Abnormalities of ROM,
RAM or EEPROM inside
the detector
Please contact RIKEN KEIKI.
The capacity of the
battery for backing up the
sensor is gone.
Replace the battery.
Sensor
abnormalities
E-1
●
The sensor is not
connected or improperly
connected.
Check if the sensor cable is securely fastened
to the terminal plate.
Faults of the sensor
Please contact RIKEN KEIKI.
Low flow rate*
E-5
●
Clogged filter
Replace the filter. * Optional
When powered
ON, the LCD
display may turn
OFF for a while
(up to 30
seconds).
— —
If it shows successfully the measurement
mode display, there is no problem.
