Riken Keiki EC-6002, Руководство по эксплуатации

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9 Troubleshooting 8-3. Disposal of products
RM-6000
- 70 -
9
Troubleshooting
The troubleshooting does not explain the causes of all the malfunctions which occur on the indicator/alarm
unit. This simply helps to find the causes of malfunctions which frequently occur. If the indicator/alarm unit
shows a symptom which is not explained in this manual, or still has malfunctions even though remedial
actions are taken, please contact RIKEN KEIKI.
NOTE
Read also the operating manual of the detector head connected to the indicator/alarm unit.
<Abnormalities on Unit>
Symptom/Display FAULT Causes Actions
The power cannot
be turned on. ― The power switch is
turned off. Turn ON the power switch.
Fuse open-circuit Find out why the fuse has blown and take
appropriate actions before replacing it.
Incorrect connection
of power cable Check the terminal plate and correct the
incorrect wiring.
Abnormalities/mome
ntary 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 indicator/alarm unit
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.
Span adjustment
impossible  Calibration gas
concentration Use the proper calibration gas.
Sensor sensitivity
deterioration Replace the sensor.
Detector head
abnormalities
E-1
DETECTOR
 Fault on the detector
head (fault, 4 - 20
mA open-circuit, and
low flow rate) Recover from the fault on the detector
head.
 : Lamp on
 : Lamp off