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Table 9 Measurement (continued)
Error/Warning Description Possible solution
No measure received No measurement can be done
Make sure that the sensor is correctly connected
to the instrument
Disconnect the sensor and connect it again
Change the sensor if no measurement is
received using the
Live Measure option (refer to
Other maintenance options on page 45)
The stirrer/propeller stirrer
does not operate
The stirrer (or the propeller stirrer) does not
automatically start when the measurement
starts. Make sure that the stirrer configuration is set
correctly. Identify if the applicable stirrer is
selected in the Settings>Options menu.
Printer: communication
error
The red LED on the printer flashes to show
that the printer is in error mode. There is no
paper in the printer.
Replace the paper roll in the printer. Refer to the
printer documentation.
Burette fails to deliver Syringe cannot deliver any reagent Contact technical support
Burette fails to fill Syringe cannot be filled with reagent Contact technical support
Burette failed to read
delivered volume Syringe cannot calculate the delivered
volume of reagent
Contact technical support
System failure Operational failure Contact technical support
Table 10 Calibration
Error/Warning Description Possible solution
Temperature variation too
high
The variation in temperature is too high
across all the calibration solutions when
more than one is used Make sure that the maximum temperature
variation across all the calibration solutions is no
more than 5 °C before starting a calibration
Temperature out of range
The temperature of the calibration solution is
outside the specified temperature range for
the buffer or standard used in the calibration Make sure that the temperature of the calibration
solution is inside the specified range before
starting a calibration
Calibration solution already
used The calibration solution has already been
used for a calibration
Use another calibration solution
Slope out of range
The pH sensor calibration slope is outside
the accepted limits
Make sure that there are no bubbles around the
sensor element or junction
Clean the sensor using the recommended
procedures in the sensor documentation
Offset out of range
The pH sensor calibration offset is outside
the accepted limits
Make sure that there are no bubbles around the
sensor element or junction
Clean the sensor using the recommended
procedures in the sensor documentation
Buffer value under
electrode detection limit The value of the calibration solution is less
than the low limit for sensor detection Use a calibration solution that is inside the
sensor measurement range
Cell constant out of range
The calibration value of the cell constant is
outside the accepted limits
Make sure that the cell constant minimum and
maximum values are correct for the application
and adjust them if incorrect (refer to
Change
application parameters on page 63)
The connected electrode
cannot be calibrated or
there is no application that
contain calibration
parameters
There is no installed application that contains
calibration parameters, or the sensor is not a
sensor that can be calibrated (e.g. PtPt or
ORP sensors)
Make sure that at least one application that
contains calibration parameters for the sensor
has been installed, and that the sensor is a
sensor that can be calibrated (e.g. pH or
conductivity sensors)
Troubleshooting
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