Omega Vehicle Security K-79 - Manual (Page 3)

slowly and carefully to avoid bending. Do not hold the head when
inserting, always hold the stem.
Do not place a "Dial Temp" thermometer in contact with a
material where electrical voltage potential is present.
SECTION 4 CALIBRATION
OMEGA K-79 Series Pocket Thermometers are factory calibrated. The
alloys used in the bi-metal element determine the span calibration and
are not adjustable. The dial head itself, however, can be reset. This is
done at ambient temperature, where the pointer remains stable, and the
dial is adjusted.
To reset the dial:
1. Determine the room temperature by using a reference thermometer
of known accuracy.
2. Firmly hold the hex nut at the base of the dial with a 7/16” wrench.
3. With your other hand, firmly grip the perimeter of the dial. Slowly
turn the dial head until the reading corresponds to room the
temperature.
SECTION 5 SPECIFICATIONS
Accuracy: 1% of scale
Approx. Response Time
in Water
: 4 seconds for one time constant*
Head: 1" diameter (25 mm)
Dial: White background with crisp letters, marks
and numbers
Stem: .142 O.D., 5" long, pointed (3.6 mm x 127 mm)
Reset Nut: 7/16" hex (11 mm)
Pocket Case: Stainless steel with clip and holder loop
Weight: .65 ounces (18.5 g)
* “Time Constant” is the time required to reach 63.2% of instantaneous
temperature change.
CAUTION