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Troubleshooting
Troubleshooting Problems, Possible Causes, and Solutions
11 Troubleshooting
This section contains information on troubleshooting, CE Comments, and a wiring
diagram.
11.1 Troubleshooting Problems, Possible Causes, and Solutions
In the event that the instrument appears to function abnormally, this section may help
to nd 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 1.4, Authorized Service
Centers on page 5) for assistance. Be sure to have the instrument’s model number,
serial number, voltage, and problem description available.
Problem Possible Causes and Solutions
Incorrect
temperature
reading
Incorrect R0, ALPHA, and DELTA parameters. Find the value for R0, ALPHA,
and DELTA on the Report of Calibration. Reprogram the parameters into the
instrument (see Section , Calibration Parameters). 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 up the instrument. The instrument displays shows ‘-init-‘, the
model number, and the rmware version. Each of the controller parameters and
calibration constants must be reprogrammed. The values can be found on the
Report of Calibration.
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).
Improper line voltage. Verify that the voltage reading in the bottom of the unit
matches the source voltage.
Unstable display Wait. Allow the instrument to stabilize for a few minutes.
Proportional band may be incorrect. Refer to the proportional band on the Report
of Calibration.
The display
shows any of the
following: err 1
, err 2 , err 3
, err 4 , err 5,
Err 6, or Err 7
Controller problem. The error messages signify the following problems with the
controller.
Err 1 - a RAM error
Err 2 - a NVRAM error
Err 3 - a Structure error
Err 4 - an ADC setup error
Err 5 - an ADC ready error
Err 6 – a defective control sensor
Err 7 – a heater error
Initialize the system by performing the Factory Reset Sequence describe above.
Temperature
cannot be set
above a certain
point
Incorrect High Limit parameter. The High Limit parameter may be set below
375°C. Check this value as described in Section 6.9, Operating Parameters on
page 25.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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