TEMPHION INSTRUCTIONS
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TROUBLESHOOTING
Problem
Probable Causes
Things to try…
Software will not
communicate with
sensor
Loose cable
Make sure all cable connections are secure.
Contacts in connector loose
Be sure all wires are securely fastened inside the
round connector.
USB driver not installed
See Connecting the TempHion to a Computer
in the Installation section or see the USB/RS485
Adapter Installation application note on our
web site.
Incorrect USB or COM port selected
If using Aqua4Plus, be sure USB is selected in
the dropdown box on the tool bar or the correct
COM port if using an alternate connection
method. (Aqua4Plus Lite automatically uses only
the USB connection.)
SEE ALSO ERRATIC READINGS BELOW
Incorrect readings
O-ring has not been moved to expose the
reference reservoir opening
Move the O-ring from the upper groove to the
lower groove. See the Installation section.
Element or reference electrode not
reconditioned after storage
See reconditioning information in the How the
Store and Recondition section.
Calibration not performed or incorrectly
performed
See Calibration section.
Incorrect buffers or standards used during
calibration
See Calibration section.
Readings drifting
over time
Needs recalibration
Recalibrate according to Calibration section.
Erratic readings
Poor connection due to moisture between
contacts in connector
Dry thoroughly. Be sure desiccant is fresh (see
Maintenance section).
Loose or broken wires in connector
Repair or return for evaluation and repair.
Damaged cable, cracked or fraying
Replace cable.
Moisture in the unit
Return for evaluation and repair.
Damaged transmitter
Return for evaluation and repair.
