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sympHony
™
Meter User Guide
pH Troubleshooting
Problem:
The meter does not recognize the pH buffer value during calibration.
Solution:
Verify that the correct buffer set was selected in the setup menu. The
meter uses the raw mV reading of the electrode to recognize a buffer
during calibration. As the electrode ages or becomes dirty, its mV
readings will drift and you may need to manually enter the pH buffer
value when calibrating.
ISE Troubleshooting
Problem:
It takes several minutes for the readings to stabilize during a calibration.
Solution:
The concentration range in the setup menu is set to low. Change the
concentration range to high.
The ISE resolution is set to 3 digits in the setup menu. Change the ISE
resolution to 2 digits for faster stabilization of the readings.
Problem:
When I use the automatic blank correction setting and calibrate an ISE,
the meter gives a slope that is too low or cannot be manually checked.
Solution:
Turn the automatic blank correction setting off in the setup menu.
Conductivity Troubleshooting
Problem:
The meter does not recognize the conductivity standard during
calibration.
Solution:
Verify that the default cell constant was entered in the setup menu. The
cell constant is usually printed on the conductivity probe cable. Verify
that the conductivity standard is one that is programmed into the meter.
Re-calibrate with a fresh standard.
Problem:
The temperature coefficient value does not appear in the setup menu.
Solution:
The current temperature compensation setting is nonlinear or off.
Change the temperature compensation to linear and the next screen will
be the temperature coefficient value entry screen.
Problem:
The measurement is out of range when it should be in range.
Solution:
Check that the conductivity probe is fully immersed in the solution.
Verify that the cell constant is correct for the conductivity probe that is
connected to the meter. Verify that the cell type selected in the setup
menu is set to Std.
Troubleshooting
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