Search Mode - Selection And Use - GE Protimeter MMS Instruction Manual

2.1 Search Mode - Selection and Use

Turn the MMS ON by pressing
. Select the moisture meter mode by
repeatedly until the word MOISTURE is visible in the top right
pressing
to select the Search mode, indicated by
corner of the LCD. Then press
)
)
on the LCD.
)
REL
)
The instrument can now be used to take relative moisture readings in solid,
homogenous materials (such as walls and floors) by holding the leading edge
of the sensor bulge against the surface (see the figure below) at an angle
ranging from 20° to 50°. Relative readings ranging from 0-1000 appear on the
LCD together with a progress bar that indicates whether the material is in a
DRY, AT RISK or WET condition.
As reliable readings are obtained only
if the leading edge of the sensor bulge
is in direct contact with the surface, the
Search mode is not suitable for
surveying textured finishes. The
nominal depth of penetration is up to
0.6 in. (15 mm) in dense, homogeneous
materials. Readings taken through low-
density coverings (carpets, polystyrene
tiles, etc.) will not be representative of
the moisture level in the substrate itself.
When using the MMS in Search mode,
it is recommended that no attachments
(i.e. Hygrostick probe, Humistick
probe, Surface Temperature Sensor, or
Moisture probe) are connected. This
practice will minimize reading errors
and the potential for electromagnetic
interference with other electronic
equipment.
2.1.1 Search Mode - Zeroing Function
If that instrument is used in Search Mode at an ambient temperature that is
significantly different from the ambient temperature at the time of the original
calibration, the instrument may show a small, non-zero reading when held in
free air.
Protimeter MMS Moisture Measurement System Page 5