RKI Instruments GX-8000(PT0-098) - Manual (Page 47)

8 Troubleshooting
- 47 - GX-8000
Symptoms Causes Actions
Water or oil, etc. was
drawn in.
Check the gas sampling hose for any damage or mark of
drawn water or oil, etc.
The gas sampling hose
is clogged.
Check the gas sampling hose for connections, clogging,
twisting, etc.
A low flow rate
alarm is displayed.
FAIL LOW FLOW
The pump has
deteriorated.
Request RIKEN KEIKI to replace the pump.
Fresh air
adjustment cannot
be performed.
FAIL AIR CAL
Fresh air is not supplied
around the gas monitor.
Supply fresh air.
Clock
abnormalities
FAIL CLOCK
Abnormalities of the
internal clock
Make a setting of Date/Time.
If such a symptom is observed repeatedly, the built-in
clock is seemingly malfunctioning. Thus, it must be
replaced. Please contact RIKEN KEIKI.
The charger is not
connected properly.
Connect the AC powered charger to the wall electric
outlet and jack properly.
A recharging circuit
abnormality occurred.
Request RIKEN KEIKI for repair.
The batteries
cannot be
recharged.
(Li-ion battery unit
only)
The batteries have been
fully charged.
When fully recharged batteries are recharged again, the
recharging indicator lamp does not go on.
<Abnormalities of Readings>
Symptoms Causes Actions
Drifting of sensor output Perform the zero adjustment (fresh air adjustment).
Presence of interference
gas Disturbances by interference gases, such as solvents,
cannot be eliminated completely. For information on
actions, such as removal filter, please contact RIKEN
KEIKI.
Slow leak A very small amount of the gas to be detected may be
leaking (slow leak). Because ignoring it may cause
dangers, take a remedial measure, i.e., taking actions
the same as those for the gas alarm.
The reading rises
(drops) and it
remains so.
Environmental changes Perform the zero adjustment (fresh air adjustment).
In particular, the galvanic cell type is affected by the air
pressure.
Presence of interference
gas Disturbances by interference gases, such as solvents,
cannot be eliminated completely. For information on
actions, such as removal filter, please contact RIKEN
KEIKI. A gas alarm is
triggered despite
of no gas leak and
no other
abnormalities at
the detection
point.
Disturbance by noise Turn off and restart the gas monitor.
If such a symptom is observed frequently, take
appropriate measures to eliminate the noise.
Clogged dust filter Replace the dust filter.
Bended or clogged
suction tube or exhaust
tube Fix the defective parts.
Condensation is formed
inside the suction tube. Fix the defective parts.
Slow response
Deteriorated sensor
sensitivity Replace the sensor unit with a new one.
Improper calibration gas
concentration Use the proper calibration gas. Span adjustment
impossible
Deteriorated sensor
sensitivity Replace the sensor unit with a new one.