Moisture Measurement Operation
7.7
MR12 Ball Moisture Probe (Optional)
The MR12 allows you to take pinless moisture measurements with all the ben-
efits of a remote probe, i.e. easier access to surfaces and manoeuvrability.
1. Connect the MR12 to the socket at the bottom of the meter.
2. Select the MR12 probe option in the menu (
Moisture Mode/MR12
); see
Figure 7–11
.
3. Touch the MR12 probe to the surface under test.
4. View the moisture reading on the MR265 in either the Moisture-only dis-
play mode or the Thermal/Visible camera modes. Use the menus to select
the display modes (
Image Modes
).
5. Pinless measurement readings are ‘relative’ scaled (0~100).
7.8
Set Reference Mode
1. Select the ‘Set Reference’ mode from the menu (
Moisture mode/Set
Reference
); see
Figure 7–12
. This mode is only available for pinless
measurements, including the optional MR12 Ball Moisture probe.
2. When the ‘Set Reference’ mode is selected, the displays are affected in
the following ways:
• Thermal/Visible Camera modes: A delta (triangle) symbol is shown
after the moisture reading indicating that the reading represents the
current measurement minus the reference value (the measurement re-
corded at moment the ‘Set Reference’ mode was selected).
• Moisture-only mode: The reference value, with delta symbol, is shown
on the right side of the display and the moisture reading (offset by the
reference value) is shown on the left in large digits.
3. All measurements taken subsequently will be relative to the reference val-
ue. For example, if the reference value is ‘20’ (representing the driest area
of the material under test) and a measurement of ‘25’ is taken (in an area
with higher moisture content), the measurement will show ‘5’ (25 – 20 = 5).
As implied, this mode is useful for comparing wet areas to a dry area
reference.
4. To remove the reference value and exit the mode: Remove the meter sen-
sor from the area under test, so that the sensor is no longer touching a
surface and is clear of any objects, and then select the pin-mode from the
Moisture Mode
menu.
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