5
Operation
•
Steam, dust, smoke, etc., may obscure measurements.
•
To find a hot spot, aim the meter outside the area of interest, then scan across
(in an up and down motion) until the hot spot is located.
WARNING
Do not look directly into the laser beam. The laser beam can cause eye
irritation.
WARNING
Do not use the laser pointer near explosive gases or in other possible explo-
sive areas. Injury to persons can occur.
1.
Press and hold the
button to enable the IR sensor and the laser pointer
diode. The
indicator is displayed.
2.
Aim the laser pointer at the surface to be measured. The IR temperature
reading is displayed on the four-digit secondary display.
3.
Release the
button to disable the IR sensor and the laser pointer diode.
The last IR temperature reading remains on the display for 8 seconds; then
the meter returns to a display of the ambient air temperature, and the
in-
dicator disappears.
5.5
Condensation measurements
In Condensation mode, the meter determines whether a surface is at risk of con-
densation, based on measurements of the dew point temperature (relative hu-
midity and ambient air temperature) and the IR temperature of the surface.
1.
Press the
button to enter the Condensation mode. The
indica-
tor is displayed.
2.
Aim the meter at the surface. Press and hold the
button. The
indi-
cator is displayed
#T559822; r. AE/ 10036/10036; en-US
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Summary of Contents for MR77
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