Seametrics TempHion Instructions Manual page 26

TROUBLESHOOTING
Problem Probable Causes
Software will not Loose cable
communicate with
sensor
Contacts in connector loose
USB driver not installed
Incorrect USB or COM port selected
(1.9.10 Only)
SEE ALSO ERRATIC READINGS BELOW
Incorrect readings O-ring has not been moved to expose the
reference reservoir opening
Element or reference electrode not
reconditioned after storage
Calibration not performed or incorrectly
performed
Incorrect buffers or standards used during
calibration
Readings drifting Needs recalibration
over time
Erratic readings Poor connection due to moisture between
contacts in connector
Loose or broken wires in connector
Damaged cable, cracked or fraying
Moisture in the unit
Damaged transmitter
Seametrics • 253.872.0284
Things to try...
Make sure all cable connections are secure.
Be sure all wires are securely fastened inside the
round connector.
See Connecting the TempHion to a Computer
in the Installation section or see the USB/RS485
Adapter Installation application note on our
web site.
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.
Move the O-ring from the upper groove to the
lower groove. See the Installation section.
See reconditioning information in the How the
Store and Recondition section.
See Calibration section.
See Calibration section.
Recalibrate according to Calibration section.
Dry thoroughly. Be sure desiccant is fresh (see
Maintenance section).
Repair or return for evaluation and repair.
Replace cable.
Return for evaluation and repair.
Return for evaluation and repair.
Page 26
TEMPHION INSTRUCTIONS
seametrics.com