Faults - Wohler WA 335 Instructions De Service

Faults

12 Faults
Fault
It is not possible to power
on the device.
pH reading not stable
76
the meter
- after changing the membrane set
- after changing the battery
Possible cause
Pressed the power
•
on button too briefly.
Batteries are flat or
•
battery connection
fault
• Low battery power
Test pH probe too
•
old
Remedy
Power on again.
•
Place the batteries correctly
•
in the compartment or re-
place
Replace batteries
•
Never use old and new
•
batteries at the same time
Replace pH probe.
•