2.2.0 Measure Mode -
Selection and Use
Turn the MMS on by pressing . Select the
moisture meter mode by pressing
(((((((successively until the word MOISTURE is
visible in the top right corner of the LCD. Then
press to select the Measure mode, indicated
by on the LCD. Connect the Moisture
Probe (or other electrodes such as Deep Wall
Probes or Hammer Electrode - see section
2.2.1) to the MMS Instrument using socket (JC).
The instrument can now be used to take actual
%MC readings in wood and %WME readings
in non-conductive solid materials other than
wood by pushing the Moisture Probe pins into
the surface. The measured value is displayed and the progress bar indicates whether
the material is in a DRY, AT RISK or WET condition, as summarised in table 2.2.
%MC (wood only) or %WME value Instrument display in MOISTURE Measure Mode
< 8% - - - % (denotes out of range), inactive progress bar
≥ 8% but < 17% %MC or %WME value, DRY, active progress bar
≥ 17% but < 20% %MC or %WME value, AT RISK, active progress bar
≥ 20% but < 28% %MC or %WME value, WET, active progress bar
≥ 28 to 100 Relative value only, active progress bar
Table 2.2
2.2.1 Using Auxiliary Moisture
Probes in Measure Mode
When sub-surface readings are required in masonry, the
Deep Wall Probes should be used instead of the standard
Moisture Probe. To use, drill two ø 6mm clearance holes
50 - 75mm apart to the required depth. Push the two Wall
Probes into the holes and press and hold the tips firmly
against the bottom of the holes. Ensure that the probes are
connected to socket (JC) and measure the %WME value as
described in section 2.2. The most convenient way to take
sub-surface readings in wood is by using an optional
Hammer Electrode.
5
%WME
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