9 Troubleshooting
9 Troubleshooting
SD-2600
- 43 -
9
Troubleshooting
The Troubleshooting does not explain the causes of all the malfunctions which occur on the gas monitor.
This simply helps to find the causes of malfunctions which frequently occur. If the gas monitor 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.
Check the UPS, power supply line filter and
insulation transformer, and then take additional
measures.
Cable abnormalities (open
circuit/not connected/short
circuit)
Check the wiring of gas monitor and related
devices around it.
Abnormal
operations
-
Disturbances by sudden
surge noise, etc.
Turn off and restart the gas monitor.
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 sensor 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 gas
monitor.
Check the power supply, and supply the rated
voltage.
Abnormalities of ROM,
RAM, or EEPROM inside
of the gas monitor
Please contact our overseas sales department
or local representatives.
