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９．TREATMENT AT ABNORMAL CASE
９−１．Trouble alarm
Flashing of PW/TR light
・
When PW/TR light is flashing, it is the condition that the following trouble may be caused.
・
Research its cause and take an appropriate action.
・ The output from the unit at trouble shall be as follows.
4〜20mA output
: Fixed at 0.5mA
Trouble alarm contact
: Relay contact works.
LED display
Trouble content
Main cause
Ｅ−００
System trouble
Memory trouble in the unit.
Ｅ−０１
Connection trouble of
detection head
Detector head disconnection, sensor disconnection, sensor
cable disconnection.
Ｅ−０４
Auto-zero trouble
Zero drift of the sensor is high
９−２．Counteraction at trouble alarm
When any trouble was found on this unit and detector head, contact our nearest agent or RIKEN KEIKI.
９−３．Before it is thought to be trouble
It may be originated from disconnection and short circuit between units.
・Check the wirings including peripheral equipment as well as detector head.
・Re-check the detection system and contact our nearest agent or RIKEN KEIKI.
There is the case of electrical line trouble such as shut-off of power.
・This will be treated by the re-check of stand-by battery, electrical line filter, insulation transformer etc or
those addition.
９−４．Trouble shooting
（１）PW/TR light does not turn on
＜Cause and action＞
・Is it OK with power cable connection?
Connect power cable.
・Is fuse disconnected?
Search the cause of disconnection and replace it after making counter-measures.
・Is power voltage normal?
Supply the rated power voltage.
・Is this power switch turned on?
Make power switch ON.
（２）Abnormal performance
＜Cause and action＞
・Sudden surge noise can be considered. When recover it, turn off the power and turn on the power again for
re-start of operation.
When such takes place oftentimes, take an appropriate action for noise.
