45
9. Troubleshooting
The status of the pump is indicated by error messages displayed on the LCD or by the status lamps. If
any problem occurs, please check the followings before repair request.
[The List of Errors and Warnings]
●During operation
Error
Message
Status
Lamp
Name
Cause and meaning
Countermeasure
None
Flashing
red light
Flow
Error
During sampling,
the instantaneous
flow is out of ±10%
of the set value.
※
During
intermittent
operation, this
error is not
detected.
The flow rate may not reach the
set value due to a large
resistance of the sampling
media.
Check if the flow resistance of
the sampling media at the set
flow rate is within the
specifications of the pump.
(Refer to “10. Specifications”)
Blinking
Flashing
red light
Low
Battery
The remaining
battery level is
getting low.
Replace with new AA alkaline
batteries or recharged AA
nickel-metal hydride batteries.
(Refer to "5.1 Prepare the Power
Supply")
Flashing
red light
Low
Alarm
Flow sensor output
error
The flow sensor or circuit may
be faulty and must be repaired.
(Refer to "11.1 Repair")
Содержание GSP-501FT
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