10
Troubleshooting
This section contains information on troubleshooting and CE Comments
10.1
Troubleshooting Problems, Possible Causes,
and Solutions
In the event that the instrument appears to function abnormally, this section
may help to find and solve the problem. Several possible problem conditions
are described along with likely causes and solutions. If a problem arises, please
read this section carefully and attempt to understand and solve the problem. If
the problem cannot otherwise be solved, contact an Authorized Service Center
for assistance (see Section 1.4). Be sure to have the model number and serial
number of your instrument available.
Problem
Possible Causes and Solutions
Incorrect temperature
reading
Incorrect R0 parameter.
Find the value for R0 on the Report of Test that was
shipped with the instrument (or from subsequent calibrations of the instru-
ment). Reprogram the parameter into the controller (see Section 7.10.1, R0).
Allow the instrument to stabilize and verify the accuracy of the temperature
reading.
Controller locked up.
The controller may have locked up due to a power
surge or other aberration. Initialize the system by performing the Factory Reset
Sequence.
Factory Reset Sequence.
Hold the SET and EXIT buttons down at the same
time while powering on the instrument. After the instrument displays
-init-
,
release the buttons. The display shows
-init-
, then displays
2200
, and then
displays the firmware version. After performing the master reset sequence, all
of the configuration parameters are reset to their default values. Reprogram
the R0 parameter into the controller (see Section 7.10.1, R0) and any other ap-
plicable configuration parameters. Allow the instrument to stabilize and verify
the accuracy of the temperature reading.
Blank display after mains
power applied
Blown fuse.
A fuse may have blown due to a power surge or failure of a com-
ponent. Replace the fuse once. If the fuse blows a second time, it is likely
caused by the failure of a component. Always replace the fuse with one of the
same rating, voltage, and type. Never replace the fuse with one of a higher cur-
rent rating.
The Instrument heats or
cools too quickly or too
slowly
Incorrect scan and scan rate settings.
The scan and scan rate settings may
be set to unwanted values. Check the Scan and Scan Rate settings. The scan
may be off (if the unit seems to be responding too quickly). The scan may be
on with the Scan Rate set low (if unit seems to be responding too slowly).
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10 Troubleshooting
