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7102
User's Guide
14-2
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).
An “o” is displayed at the left of the display External switch is open. The external
switch is open causing the displayed
temperature to be frozen and keeping the
set-point from scanning. Turn the switch test
off by pressing the “DOWN” button on the
front panel.
The display shows any error 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 – Defective control sensor. The control
sensor may be shorted, open or otherwise
damaged.
Initialize the system by performing the
Factory Reset Sequence described above.
Err 7 – Heater control error. Initialize the
system by performing the Factory Reset
Sequence described above.
The stirrer is not stirring Stirrer speed needs adjusting. In the
Operating Parameters menu, adjust the
stirrer speed (“Str Sp”) to 0. Wait for the
motor to stop. Adjust the stirrer speed to a
setting greater than 8 but less than or equal
to 25.
Temperature readout is not the actual
temperature of the well
Possible RF energy emission. With the unit
stable, slowly rotate the unit. If no change
occurs, the unit may need to be calibrated. If
the display changes more than twice the
normal display deviation, another unit in the
area could be emitting RF energy. Move the
unit to a different location and rotate the unit
again. If the temperature is correct in this
new area or deviates differently than the first
are, RF energy is present in the room. If you
have to perform the test in the affected area,
use the comparison test to eliminate any
possible errors.
Instrument is unstable Varying line voltage or fluid is not stirring.
Place the unit on a clean power line. If the
fluid is not stirring, turn the instrument off for
one minute
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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