Harbor Freight Tools 92242 Thermometer User Manual


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SKU 92242 For technical questions please call 1-800-444-3353. Page 5
Holding a Temperature Display
1. The “HOLD” key is located on the right side of the Thermometer face and is one of the four
buttons surrounding the “TYPE” button. Pressing the “HOLD” key will cause the
Thermometer to display the present readings. It will display only the present reading and will
stop all future measurements-see Figure 1.
2. To turn off the “HOLD” setting, press the “HOLD” key again. This will resume normal
display on ongoing measurements-see Figure 1.
Backlighting the Display
The Thermometer has a backlight feature which allows you to read the Thermometer display in
situations where there is not enough light-see Figure 1.
1. Press the Backlight key to light up the display.
2. Press the Backlight again to turn the backlight off.
Overload Display (1)
The digital display will indicate “1” when the input exceeds the measurement range selected-see
Figure 1.
1. If the temperature you are measuring exceeds 199.9, change the display to read in
increments of 1-see section on Selecting Display in 1 Degree or Tenths of a Degree.
2. Make certain that the thermocouple connector is seated properly and that the leads are not
broken.
Thermocouple Checking
1. First, allow time for the Thermometer to adjust to the ambient temperature. To check the
accuracy of the Thermocouple reading, place the end of the Thermocouple away from any
object. Press the Thermocouple Checking button (Tc) button. With the button down, the
Thermometer will display the temperature reading inside the unit. Record the temperature
reading.
2. Release the button and allow time for the Thermometer to adjust to the ambient temperature.
The Thermometer will display the exterior temperature. Record the temperature reading.
3. The Thermocouple is reading correctly if the two temperatures are reading within the
accuracy range specified on page 2. For example, when the thermometer reads 74.7°F with
the Tc button on, and 74.2°F with the button off. There is a .5 degree difference in
temperature shown.
4. The degree of accuracy is + 4°F, or + .5% reading plus 2°. The reading is within this range
and is accurate. Note that if accuracy is off it is generally a problem with the
Thermocouple and not the Thermometer.
Tripod
The Thermometer can be set onto a Tripod (not included). Thread the receptacle on the back of the
Thermometer onto the screw of the Tripod-see Figure 2 next page. The thread on the tripod mount is
1/4”-20 and can be used with a tripod which fits this same size thread.
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