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８．Trouble shooting
This trouble shooting does not mention all the trouble causes. The following is mentioned
briefly by picking up the point to help survey of trouble cause in high frequency.
Phenomenon
Cause
Treatment
SYSTEM FAIL
・Excess noise effects etc.
・ Re-start up and check status. Request to
manufacture.
FAIL SENSOR
・Sensor trouble
・Check connect status and contact manufacture.
・Did excess shock etc by dropping,
crushing.
・Check connect status and contact manufacture.
FAIL FLOW
・Water, oil are soaked.
・Check whether any damage, suction marks of water,
oil etc shall be found on sampling hose and filter
with flow monitor.
・Filling by filter dust.
・Replace the filter with new.
・Substance is clogged.
・Remove substance.
LOW BATTERY
(REPLACE BATT.)
・Low battery of dry battery.
・Make power off and replace battery in non-hazardous
area.（See “6-1.BATT. REPLACEMENT”.）
ZERO CAL FAIL
(FAIL ZERO)
・Fresh air is not sucked normally. ・Make zero adjustment again by having fresh air
sucked into instrument.（See 3-5.ZERO ADJUSTMENT）
・Sensor trouble.
・Make sensor replacement.
SPAN CAL FAIL
(FAIL SPAN）
・Cal gas is not supplied correctly ・ Make gas calibration again by supplying cal
gas.(See “6-2. GAS CALIBRATION”.)
・Sensor trouble.
・Make sensor replacement.
Power can not be ON
・No power on.
・Put battery correctly.
・Battery is exhausted.
・Replace batteries.
・Polarity is wrong.
・Correct battery polarity.
・Pressing POWER SW is too short. ・Hold and press POWER SW for 3 sec.
Pump is working
Power can not be ON
・ All the batteries are put in
reversely.
・ Put batteries correctly according to battery
replacement (See “6-1. BATTERY REPLACEMENT”.)
Pump does not work
・Pump life ends or troubled.
・Request manufacture to repair.
・ Not measured and pump stop
working.
・Re-start pump operation. Press PUMP SW until LCD
will display “PUMP ON”.
・Pump connection fails.
・Check connection condition and contact RIKEN KEIKI
for repair.
Gas is not sucked
・Filter or hose etc are removed
or clogged.
・Check connection status of filter, hose and filth
or twist and use in correct condition.
Zero blinks
・Zero is below minus.
・ Check that gas is free around and make zero
adjustment.
・For CO2, make it after mounting CO2 scrubber.
“100.0 vol%” blinks
(CH4 only)
・Zero and span are deviated and
it shall be the output of 100
vol%
・Repeat again the procedure of zero adjustment and
gas calibration.
