Measuring Temperatures; Out-Of-Range Temperatures - Fluke 65 Instruction Sheet

Measuring Temperatures

Read the section "Ensuring Accuracy " before measuring
temperatures. Check that the batteries are installed and the laser
switch is in the on position. (See the sections "Installing the
Batteries" and "Setting the Switches.")
To take a measurement:
1. If the emissivity of the object is different from 0.95, apply
black tape, black matte paint, or black magic marker to the
object if it is safe to do so. (See the section "Emissivity of
Common Materials.")
2. Point the thermometer at the object.
G
3. Press
be measured. The display shows the measured temperature.

Out-of-Range Temperatures

The display indicates when a measured temperature reaches the
detection limits of the thermometer. When you recall an out-of-
range temperature, the display shows "Lo" and "Hi" as "---."
Temperature
511 °C (951 °F)
500 °C (932 °F)
-40 °C (-40 °F)
-50 °C (-58 °F)
and aim the laser beam in the center of the area to
aab04f.eps
Display
Out of range. "Hi" flashes.
Temperature flashes.
Temperature does not flash.
Temperature flashes.
Out of range. "Lo" flashes.