Orion Benchtop pH/ISE Meter Instruction Manual
Troubleshooting
75
C. Meter Operation Problem
Table III – Meter Operation Problem
Problem Probable Cause Remedy
No Display No power to meter For Orion 410Aplus,
420Aplus, 710Aplus press
the power key. For all
models, check that
the line converter is plugged
in securely.
Autoshutoff may When the Autoshutoff
be turned on feature is on, the meter will
automatically shut down if
no keys have been pressed
within 10 minutes. For
Orion 410Aplus, 420Aplus
and 710Aplus press the
power key to turn the meter
on. For Orion 520Aplus,
525Aplus, 720Aplus and
920Aplus, press any
key. If this feature is not
desired, turn autoshutoff off.
Erratic Readings Meter or electrode Follow the meter check out
or Reading out failure procedure.
of Range Check electrode operation by
following the instructions in
the electrode instruction
manual.
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