BOQU PHS-1705 Manuel de l'utilisateur - Page 13
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2.8 Error message
When an error occurs, an error code is displayed in the display area 8 (see 1.2)
Error code 2 (Err2).
The measured value (pH / mV)
pH：<-2.00 or >16.00
is out of range
Err1
mV：<-1999 or >1999
Measure the temperature out
Cal：［℃］ <5.0 or > 40.0
of range
Err2
Meas： ［℃］<-5.0 or >105.0
Electrode zero potential is out
|Offset | >60mV
Err3
of range
Slope <70% or > 120%
Electrode slope is out of range
Err4
The instrument does not
|∆Eref | <10mV
Err5
recognize the buffer
Check that the electrode cap is
removed and that the electrode is
connected correctly and placed in the
solution to be tested. If the
instrument does not connect the
electrode, insert the shorting plug
into the socket.
Keep the temperature of the solution
to be measured within the specified
range
Make sure you use the buffer
correctly and within the validity
period.
Clean or replace the electrode.
Make sure you use the buffer
correctly and within the validity
period.
Clean or replace the electrode.
Make sure you use the buffer
correctly and within the validity
period.
Check whether the same buffer is
reused during calibration.
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