RKI Instruments GD-70D Series - Manual (Page 71)

9 Troubleshooting
- 71 - GD-70
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 sales department.
NOTE
To use the pyrolyzer unit (PLU-70), also refer to the individual operating manual.
Symptom/Display FAULT Causes Actions
The power switch is turned off. Turn ON the power switch.
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.
Improper installation of the
main unit Check whether the main unit is properly attached
to the wall-mounted unit.
Impossible Power
ON -
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 detector.
If such a symptom is observed frequently, take
appropriate measures to eliminate the noise.
Incorrect Flow Rate
Indicator (Specified
Value Display does
not correspond to
0.5 L/min.) ○ Improper flow rate default set Seemingly performed an improper default set,
i.e., performed a default set of flow rate on the
detector when the flow rate is not 0.5 L/min.
Prepare another flow meter and perform the flow
rate default set again.
If such a symptom is observed frequently, the
flow sensor is seemingly malfunctioning. Thus, it
must be replaced. Please contact our sales
department.
The unit is not connected or
improperly connected. Check whether the sensor unit is connected and
the connectors of the unit are securely fastened. Sensor Unit
Abnormalities
E-1 SENSOR
●
Errors in communication with
the unit Replace the sensor unit with a new one.
●: Lamp on
○: Lamp off