FLIR MR77, User Manual

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5 Operation
4. The indicator shows the currently selected material group number. Refer
to section 7 Material groups , page 23.
To change the material group number, do the following:
1. Press and hold the and buttons for 2 seconds to enter the Ma-
terial group selection mode.
The indicator flashes.
2. Use the and buttons to step through the nine material group
numbers.
3. Press the button to set the group and exit the Material group se-
lection mode.
5. Press the probe pins into the material.
The moisture reading is displayed on the main display, in percent (%).
5.3 Hygrometric measurements
In Hygrometer mode, the meter measures and displays the relative humidity, dew
point temperature, mixing ratio, and ambient air temperature.
The three-digit main display shows the relative humidity, dew point temperature,
or mixing ratio, and the four-digit secondary display shows the ambient air tem-
perature. The bar graph matches the reading on the main display.
While in Hygrometer mode, IR measurements may also be performed, see sec-
tion 5.4
IR temperature measurements , page 15.
1. Press the button to enter Hygrometer mode. The indicator is
displayed.
2. The relative humidity is displayed on the main display. The ambient air tem-
perature is displayed on the secondary display.
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