4
Troubleshooting
4.1
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
(see Section 1.3). Be sure to have the model number, serial number, and voltage
of your instrument available.
Problem
Possible Causes and Solutions
Incorrect temperature
reading
Incorrect R0, ALPHA, and DELTA parameters.
Find the values for R0, AL-
PHA, and DELTA on the Report of Calibration that was shipped with the instru-
ment (or from subsequent calibrations of the instrument). Reprogram the
parameters into the 2200 memory (see the 2200 User’s Guide). Allow the in-
strument 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 up the instrument. After the instrument displays
-init-
,
release the buttons. The display shows
-init-
, then displays
9132
, 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, ALPHA, and DELTA parameters into the Model 9132 memory (see Section
, Calibration Parameters) and any other applicable 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).
11
4 Troubleshooting
