ThermoWorks 9135-156 HART SCIENTIFIC 3-POINT IR CALIBRATOR - Manual (Page 25)

11 Troubleshooting
If problems arise while operating the 9135, this section provides some sugges-
tions that may help you solve the problem. If, after considering the following
suggestions, the problem still cannot be resolved, call an Authorized Service
Center for assistance. Opening the unit without contacting an Authorized Ser-
vice Center may void the warranty.
Problem Causes and Solutions
Incorrect temperature reading Check that the green ready LED is lit showing that the IR target has
stabilized to the set-point.
Check that the IR thermometer is close enough to the IR target.
Check that the IR thermometer is set to 0.95 emmisivity.
Check that the IR target surface is clean and free of particles.
Check the temperature with a calibrated 3.18 mm. (0.125") diameter
RTD to verify the temperature of the IR target.
Have the instrument calibrated regularly.
None of the LEDs light Check that the power cord is plugged in and the power switch is on.
Check that the mains supply is the correct voltage as indicated on the
back of the calibrator.
The internal fuse may be blown or the calibrator may be damaged in
which case the instrument should be returned. Contact a Hart Scien-
tific Authorized Service Center for assistance.
The ready indicator stays dark Even under normal circumstances it can take up to ten minutes to
heat up to and stabilize at a higher temperature and up to 40 minutes
to cool down to and stabilize at a lower temperature.
Check that the mains supply is the correct voltage as indicated on the
back of the calibrator.
Make sure the mains supply is reasonably free from surges,
drop-outs, and interference.
11.1 CE Comments
11.1.1 EMC Directive
Hart Scientific’s equipment has been tested to meet the European Electromag-
netic Compatibility Directive (EMC Directive, 89/336/EEC). The Declaration
of Conformity for your instrument lists the specific standards to which the unit
was tested.
11.1.2 Low Voltage Directive (Safety)
In order to comply with the European Low Voltage Directive (73/23/EEC),
Hart Scientific equipment has been designed to meet the IEC 1010-1 (EN
61010-1) and IEC 1010-2-010 (EN 61010-2-010) standards.
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11 Troubleshooting
CE Comments