wtw pH 323 Bedienungsanleitungen Seite 42

LoBat
No message
Indication range
exceeded
No message
Wrong meas.
values
Instrument doesn't
react upon key
operation
to to
42
Batteries/accumulators nearly
discharged
Electrode:
•
Diaphragm contaminated
•
Membrane contaminated
Meas. solution:
•
ph-value not stable
•
Temperature not stable
Electrode + Meas. solution:
•
Too low conductivity
•
High temperature
Organic liquids
Electrode:
•
Improper electrode
•
Temperature difference
between calibration and
meas. solution too high
•
Interference voltages
•
Improper meas. procedure
Undefined operation
condition of the processor e.g.
after non-admissible ESD-
admission
Timeout of the serial interface Check connected instrument
Trouble Shooting
Change batteries or charge
accumulator
Electrode:
Clean diaphragm
Clean membrane
Meas. solution:
Possibly temper
Possibly temper
Use suitable electrode
Use suitable electrode
Use suitable electrode
Electrode:
Select suitable electrode
Temper buffer or meas.
solutions
Don't connect PC or printer if
meas. solution is grounded
Attend to special procedures
Press key RCL and switch on
the instrument
BA12204/05.95/Pap/pH323-325-SET-2