47
●Calibration Mode
Error
Message
Status
Lamp
Name
Cause and meaning
Countermeasure
Off
Calibr
ation
This message is
displayed for 2 seconds
at the beginning when
the unit enters the
calibration mode.
※This is not an error.
After 2 seconds, the unit enters
the calibration mode.
Perform calibration.
Flashing
red light
Sensor
Zero
Output
Error
The flow sensor or
circuit may be faulty.
Perform the zero point
adjustment again. If the sensor
zero output error occurs
repeatedly, the flow sensor or
circuit may be defective and
must be repaired.
(Refer to "11.1 Repair")
Flashing
red light
Leak
Error
There is a possibility of
air leakage.
①
Perform the zero point
adjustment again.
(Refer to “7.5 Zero Point
Adjustment”)
②
Replace the dust filter and O-
ring.
(Refer to “8.1 Replacing the
Dust Filter and O-ring”)
③
If the problem is not solved
in
①
and
②
, there might be air
leakage inside the pump and
must be repaired.
(Refer to "11.1 Repair")
Flashing
red light
Span
Error
The sensor is out of
adjustable range during
flow rate calibration.
①
Check the calibrator for any
defects.
②
Check for air leakage in the
sampling path between the
calibrator and GSP-501FT.
③
Check for air leakage inside
GSP-501FT.
(Refer to "7.6 Leak Check")
④
If no problem is found in
①
②③
, the flow sensor or circuit
may be defective, or there might
be air leakage inside the GSP-
501FT and must be repaired.
(Refer to "11.1 Repair")
