Data Sheet

Moisture Measurement Operation
7
Reference mode is selected, the current reading is offset to zero. Subse-
quent readings will be offset by this same amount, see Section 7.8 Set
Reference Mode for additional information.
Figure 7.13 Selecting the ‘Set Reference’ mode.
7.5 Pinless Moisture Measurements
• Select the pinless mode from the menu system (Moisture mode/Pinless);
see Figure 7–11 above).
• Place the internal moisture sensor (back) on the surface of the material to
be tested. Apply light pressure to ensure that the internal sensor is com-
pletely flat against the surface of the material under test.
• The internal moisture sensor detects moisture to a depth of approximately
19 mm (0.75”). The actual depth will vary depending upon the amount of
moisture, the material under test, surface roughness, and other factors.
• Pinless measurement readings are ‘relative’ scaled (0~100).
• 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 MR277 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 7–10 above.
#NAS100005; r. AG/62027/62027; en-US
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