9 Troubleshooting
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9
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 our overseas sales department or local representatives.
<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 indicator/alarm unit.
If such a symptom is observed frequently, take
appropriate measures to eliminate the noise.
Sensor
abnormalities
E-1
●
The sensor is not
connected or improperly
connected.
Check if the cable is securely fastened to the
terminal plate.
Faults of the sensor
Replace the sensor with a new one.
System
abnormalities
E-9
●
The rated voltage is not
supplied to the detector.
Check the power supply, and supply the rated
voltage.
Abnormalities of ROM,
RAM or EEPROM inside
of the detector
Please contact our overseas sales department
or local representatives.
Summary of Contents for SD-1DOX-AS
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Page 61: ...10 Product Specifications 10 1 List of specifications 59 Outline Drawings Adapter A NPT1 2...
Page 65: ...10 Product Specifications 10 1 List of specifications 63 Outline Drawings Cable gland G3 4...
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