Riken Keiki NP-1000, Руководство по эксплуатации

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11. Troubleshooting 11-2. Abnormalities of readings
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Symptoms Causes Actions
A low flow rate alarm is
displayed.
FAIL LOW FLOW
The flow rate has
decreased due to clogs at
the sampling part, bent
hose, etc.
After eliminating the cause for clogging,
bending, etc., press the RESET button to
reset the alarm.
The pump has failed. Request the dealer or Riken Keiki local
representative to replace the pump.
The gas detector is left
unused for a long time (six
months or longer).
Cycle the power a few times. The pump may
start operating. If the problem still persists,
request RIKEN KEIKI to replace the pump.
Clock abnormalities
FAIL CLOCK
Abnormalities of the
internal clock
Request RIKEN KEIKI for repair.
11-2. Abnormalities of readings
Symptoms Causes Actions
The reading rises
(drops) and it remains
so.
Drifting of sensor output
Perform air calibration (zero adjustment).
(P. 21)
A high-concentration
combustible gas has been
drawn.
Supply fresh air and leave the unit for a while.