ThermoWorks LIMITED EDITION THERMAPEN Calibration Procedure User Manual
Page 2

ThermoWorks, Inc. • 1762 W. 20 S. #100 • Lindon, UT 84042 • ph: 801-756-7705 / 800-393-6434 • fax: 801-756-8948
www.thermoworks.com • [email protected]
Making the Thermapen Trim Adjustment:
After determining that your Thermapen requires adjustment by following
the above procedure, follow these steps to trim the Thermapen:
1. Turn the Thermapen off by folding the probe away and locking it into
the probe retaining slot.
2. Calculate the trim adjustment value by subtracting the reading
written down in Step 3 of “Determining if Your Thermapen Requires
Adjustment”from 32.0°F (or 0.0°C).
Example:
a. Reading from my Thermapen = 32.9°F
b. Adjustment Value: 32.0°F – 32.9°F = -0.9°F
3. Using a coin with the appropriate thickness open the battery compartment.
4. Move switch 4 to the ON position by pushing the white switch forward and away from the number 4 using the
tip of an opened paper clip.
5. Turn the Thermapen on by opening the rotating probe.
The display should read: “
” and then display “
”.
6. Press the trim adjust button located to the right of the switch bank until the target trim adjustment value is
shown. Note the trim adjustment value range is from -3.6 to +3.6°F (-2.0 to +2.0°C).
7. While the target trim adjustment value is displayed move switch 4 on the switch bank in the battery
compartment back to the OFF position by pushing the white switch back down toward the number 4.
This will store the trim adjustment.
8. The display should return to normal.
9. Retest in the ice bath to confirm that the new reading is within the acceptable limits: between 31.3°F and
32.7°F (-0.4°C and +0.4°C). If the reading is still outside of the acceptable limits, redo the trim adjustment by
following steps 1 thru 7.
Splash-Proof Super-Fast Thermapen
Calibration Procedure
(continued)
CR2032
3V
+
1 2
3 4
ON
1 2 3 4
ON
Switch bank
CR2032 battery
Trim adjust
Switch
(factory default shown)