Error Messages - Knick Portavo 904X PH User Manual

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Error Messages

The following error messages can be shown in the display.
Message Cause
Battery empty
blinks
ERROR 1 pH value out of range
ERROR 2 ORP value out of range
ERROR 3 Temperature value out of range
Sensor zero point
ERROR 4
too high/low
ERROR 5 Sensor slope too high/low
Calibration error:
ERROR 8
Identical buffers
Calibration error:
ERROR 9
Buffer unknown
ERROR 10 Cal media interchanged
Measured value unstable
ERROR 11
Drift too high
ERROR 14 Time and date invalid
ERROR 18 Configuration invalid
ERROR 19 Factory settings error
Sensor error (Memosens)
ERROR 21 or
Sensor verification message
Buffer distance (user-defined
ERROR 25
buffer table)
Error Codes and Device Messages
Remedy
Replace batteries
Check whether the measurement
conditions correspond to the adjusted
measuring range.
Thoroughly rinse the sensor and
recalibrate. If this does not help, replace
the sensor.
Use a buffer solution with a different
nominal value before starting the next
calibration step.
Make sure that you use the same buffer
set as configured.
Repeat calibration.
Leave the sensor in the liquid until the
temperature is stable. If this does not help,
replace the sensor.
Set time and date
Restart,reset to factory settings (Setup:
DEFAULT YES), configure and calibrate.
If this does not help, send in the device for
repair.
Device defective, send it in.
Connect an operational Memosens sensor.
With sensor verification activated in Paraly
SW 112, this error message indicates that
an unassigned sensor was connected.
Re-enter the buffer table.