ThermoWorks 9135-156 HART SCIENTIFIC 3-POINT IR CALIBRATOR - Manual (Page 21)

bration. DO NOT attempt to calibrate thermometers unless the green
ready LED is lit, otherwise accuracy may be compromised.
• The 9135’s test well is intended for 3.18 mm. (0.125") diameter probes
only. DO NOT attempt to force probes larger than this size or bent probes
into the well. For good accuracy the probe must be inserted the full depth
of the well and not fit too loosely. DO NOT attempt to calibrate thermom-
eters that are too short or too loose, otherwise accuracy may be compro-
mised.
• The test well must be kept clean and dry. Dirt, oil, or objects stuck in the
well can affect the safety and operation of the 9135 and especially affect
the ability to calibrate the instrument in the future. DO NOT attempt to
insert fluid, grease, or any objects other than clean thermometers into the
well.
• Inserting a probe into the test well may temporarily disturb the tempera-
ture of the target plate. For best results wait at least three minutes after in-
serting the probe before continuing with the calibration.
• Remember that the IR target gets hot! Be careful not to touch the IR
target or let any object other than the probe being calibrated to come into
contact with it. Probes removed from the test well can be hot and remain
so for several minutes. After removing a probe, place it on a safe heat-re-
sistant surface or holder until it cools down.
9135 Infrared Thermometer Calibrator
User’s Guide
22