VI-3
Troubleshooting
Thermo Scientific Orion 2111LL Sodium Monitor User Guide
ROSS and the COIL tradedress are trademarks of Thermo Fisher Scientific Inc. US Patent 6,793,787
Malfunction
Possible Cause
Remedy
Over-Range
Readings
Electrode connections
Verify electrode connections to electrode
cables. Silde electrode cable back to expose
male connector. Be sure to secure female
connector on electrode to male connector
before twisting to tighten. Refer to
Chapter II
Electrode wiring
Electrodes not properly wired to terminal
strip. Refer to
Chapter II
Reference electrode
Missing or blocked filling solution. Refer to
Chapter II
Electrode failure
Electrodes are shorted, cracked, damaged.
Install new probes. Refer to
Chapter II
Electronics failure /
Bad setup /
Needs calibration
Try resetting the monitor. Refer to
Chapter VI
Default
Power loss while back-
up battery was not fully
charged
Allow battery to charge overnight.
Recalibrate and reprogram. Refer to
Chapter IV
Battery failure
Contact Customer Support for Orion products
at 1-800-225-1480
Electronics failure
Try resetting the monitor. Refer to
Chapter VI
or contact Customer Support for
Orion products at 1-800-225-1480
Low Readings
Instrument okay. Sample
very pure
Perform span check procedure. If span check
passes, instrument is okay and sample is
very pure. Refer to
Chapter IV
Electronics failure
Try resetting the monitor. Refer to
Chapter VI
or contact Customer Support for
Orion products at 1-800-225-1480
If offline calibration performed, verify
accuracy of alternate method value.
Refer to
Chapter IV
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