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6
Troubleshooting
Troubleshooting
Problem
No display
Batteries absent or installed incorrectly
"LO"
Low battery
"---" on
Ion 6+ requires calibration
display
a) Dry electrode
Unstable
b) Dirty electrode
reading
c) Temperature changing
a) Display freezes
Not able
b) Faulty electrode
to calibrate
c) Inaccurate buffer
mV out of range
Err
Er
Buffer value is out of tolerance
Upon exit of calibration mode, a 1-
Er5
point calibration was attempted with
a pH buffer other than 7.00.
Over range:
Or
reading exceeds maximum value
Under range:
Ur
reading exceeds minimum value
16
Cause
Insert batteries using correct polarity
Replace batteries
Perform either 2 or 3 point ion calibration
a) Hydrate/soak pH electrode
b) Clean electrode
c) Allow time for electrodes
a) Release reading by pressing HOLD/ENTER
b) Replace electrode
c) Use fresh buffer solutions
Check the probe/solution
Use new calibration solution & recalibrate.
Ensure correct pH buffer group was selected.
Repeat pH calibration using one or more
points which include 7.00 standard.
Ensure that the value being measured is
within the range of the selected mode.
Confirm that electrode(s) are connected
and working properly.
Solution
and solution to stabilise
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