Thermo Scientific Orion 320, User Manual

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7-6 Thermo Scientific Orion 320, 350 and 370 PerpHecT
®
LogR
®
Meter User Guide
The operator assistance codes E-20 through E-36 alert the operator to a
potential problem while calibrating or measuring with the meter . Several
steps can be taken to eliminate the problem in each case . If the code
persists after trying the suggested solutions, contact Technical Support .
Within the United States call 1 .800 .225 .1480 and outside the United
States call 978 .232 .6000 or fax 978 .232 .6031 . In Europe, the Middle
East and Africa, contact your local authorized dealer . For the most current
contact information, visit www .thermo .com/contactwater .
Note:
Press any key to clear an error message from the display .
Code Description Solutions
E-20 Out of Range
Reading Error
• The error code will occur when the electrode is
out of solution. The code will disappear when
electrode is returned to solution.
• The sample value may be out of the measurement
range. Check the meter system using a calibration
buffer.
• Recalibrate the meter system using fresh buffers.
• Refer to the electrode user guide for instructions on
how to clean and condition the electrode.
E-21 Auto Buffer
Recognition
(ABR) Error / pH
Autocalibration
Error
• The electrode voltage being measured is greater
than ± 0.5 pH units from the nominal value for the pH
buffer.
• Verify that pH 4.01, 7.00 and 10.01 buffers are being
used.
• Recalibrate the meter system using fresh buffers.
• Refer to the electrode user guide for instructions on
how to clean and condition the electrode.
• Verify that the buffer that the meter is prompting for
(4, 7 or 10 icons) is the buffer being used.
• Perform a manual calibration. Non-standard
calibration buffers may be used only for manual
calibrations.
E-22 Calibration
Standard Error
• The pH, ORP or ISE values being measured are the
same for two different buffers/standards.
• Check that two different buffers/standards are
being used for calibration and the correct buffer/
standard is being measured.
• Recalibrate the meter system using fresh buffers/
standards.
E-23 Bad Slope • The pH electrode slope is not in the range of
80% to 120%
• Refer to the electrode user guide for instructions on
how to clean and condition the electrode.
• Recalibrate the meter system using fresh buffers/
standards.
Operator Assistance Codes