Thermo Fisher Scientific CyberScan pH/Ion 510 - Manual (Page 28)

Instruction Manual pH 510/ Ion 510
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7 TROUBLESHOOTING GUIDE
7.1 Error Messages
The table provides a quick guideline for diagnosis of possible problems indicated by the messages generated by the 510
meter series. The table also provides possible solutions to problems encountered.
Diagrams inserted below.
Display Screen ERROR
MESSAGE
INDICATES CAUSE CORRECTIVE
ACTION
Err. 2 (in upper
display) during Ion
calibration Too few
calibration points Meter calibrated with
only 1-point in ion
calibration Recalibrate using 2 or
more points
Err. 3 (in upper
display) during Ion
calibration Slope error Ion calibration
solution not within
acceptable range
(15mV to
90mV/decade) Recalibrate using fresh
ion solutions
Replace electrode.
Err. 4 (in upper
display) during Ion
calibration Calibration points
more than 1
decade apart Calibration points
more than 1 decade
apart Recalibrate using
calibration points 1
decade apart.
Err (annunciator) Wrong keypad
input
Button does not work
in the current
operation mode Release key. Select
valid buttons
depending on mode.
Electrode icon
(indicator) Calibration error Buffer value does not
match value displayed
or electrode is
disconnected or
failing Use fresh buffer
solution or check
electrode connection.
Possibly replace
electrodes.
Ur or Or (in upper
display) Measured value is
out of range Electrode not
connected
Electrode clogged,
dirty or broken
Meter not calibrated.
Measurement is
under range or over
range
Make sure electrode is
connected
Clean or replace
electrode
Recalibrate the meter.
Treat samples to bring
within meter measuring
range