Moisture Measurement Operation
7
• The moisture reading is displayed on the main display in the upper left
hand corner (thermal and camera image modes) or as large digits (Mois-
ture-only mode). Refer to Section 5.4 Image Modes and Sections 7.2
through 7.4, for more information.
• Keep hands, surfaces, and objects away from the internal moisture sensor
on the back of the MR265 when taking measurements.
• For best results, lift the meter off the surface under test between measure-
ment points; do not drag the meter over surfaces.
7.6 Pin Probe Measurements
1. Select the Pin mode from the menu (Moisture mode/Pin Mode); see Fig-
ure 7–9.
2. Connect the supplied MR02 pin probe, or other external pin probe, to the
meter’s socket at the bottom of the meter (under the protective flap). Refer
to https://www.flir.com for available moisture probes.
3. Select the appropriate Material Group in the menu system (Moisture
mode/Material) as described in Section 7.4 Moisture Measurement
modes. Also, See Section 13 Appendices for information on Material
Groups and the associated Group numbers to choose from in the menu.
4. Press the pins into the material under test.
5. Pin-based readings are represented in %MC (moisture content) for wood
and %WME (wood moisture equivalent) for materials other than wood.
6. The moisture reading is displayed on the main display (%) in the upper left
hand corner (Thermal and Digital Camera images) or as large digits (Mois-
ture-only mode). Use the menu to select the Image mode (Image mode
).
NOTE
Pin Probe Moisture Measurement Considerations
The MR265 will display accurate external pin probe readings in the 7% to 30% range, de-
pending on the tested material. Moisture Content readings below 6% will display as 0% for
all materials and the maximum specified range is dependent on the fibre saturation point
for specific species. Above the fibre saturation point, the reading can only be used as a rel-
ative reference value.
For more information on fibre saturation please refer to public document ASTM D7438.
For additional information on Pin moisture measurement accuracy please refer to public
document ASTM D4444, section 6.
#NAS100070; r. AB/77165/77326; en-GB
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