Accuracy is ±
of full scale
hold tester to
Model 312F is built for rough industrial
use without any lessening of accuracy. The bimetallic sensor is a
specialty processed alloy that is conditioned and tested for permanent
calibration and maximum stability.
Recommended primarily for temperature measurement of electric motors and
generators, bearings, etc., this tester can be used for checking any
other surface within the range of 0° F to 250°.
Calibration is for use in an ambient temperature of
about 70° F. Higher or lower surrounding air temperatures will
result in slightly higher or lower readings. Three minutes should
be allowed for the instrument to reach full stability when taking a
The more nearly flat the surface being measured, the better contact will
be made by the sensor. The magnets provide convenient temporary or
permanent mounting to any ferrous surface, but the instruments are
equally effective on non-ferrous horizontal surfaces.
Dimensions: 2" diam. × 1/2" thick.