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MENU
11.1.1.5. pH Calibration Messages & Warnings
Message
Recommended Action
Screenshot
“Invalid Slope”
The electrode slope is outside
accepted slope limit.
Calibration can not be confirmed.
Verify the probe is in the
buffer selected and that the
buffer is fresh.
“Clean Electrode”
The offset, evaluated at first
calibration point, is outside the
accepted window; or the slopes,
evaluated between calibration
points, are outside the accepted
lower limit.
Calibration can be confirmed.
Clean the probe to improve
the pH electrode's response.
See PROBE CONDITIONING
& MAINTENANCE section for
details
.
Repeat the calibration after
cleaning.
“Wrong Old”
The slope evaluated based on a
comparison between new and old
calibration points is outside the
accepted limits.
Clear calibration and
proceed with a new one.
“Temperature Error”
The temperature of the buffer solution
is outside accepted temperature
solution interval
.
Check buffer temperature
and repeat the
measurement.
11.1.2. Probe Settings (Accessible with Probe Connected Only)
Navigation
• To access the Probe Settings submenu, press
Setup
from Channel Setup.
