TRAMEX RWS User Manual

Principles Of Operation
To measure / detect moisture, the rubber coated base of
the instrument is pressed onto the material being tested.
The detection signals from the instrument penetrate the
material under test to a depth of up to approximately 75
mm. (3 inches) depending on the mode, the range of
sensitivity selected and the material being tested. The
small current flowing through the field is inversely pro-
portional to the impedance of the material. This current
is a measure of the change in the electrical impedance
caused by a change in the moisture content. This
change is translated by the RWS and instantly and con-
tinuously displayed on the large clear analog dial which
gives comparative readings of 0 to 100.
Prior To Use.
Although the RWS is checked on manufacture and at
quality control to ensure it is in working order before
leaving the factory, a few minor checks should be car-
ried out following transit. These are as follows :
Depress ON/OFF switch (located on facia right side of
grab handle) to power on the RWS. Check battery
strength by depressing BATTERY check switch. The
needle on the analog dial should go past the BATTERY
line on the dial. If not, change the battery. Set the sen-
sitivity dial to 10, place your hand on the base of the
instrument, making contact with both electrodes, a full-
scale reading of 100 should be obtained, irrespective of
which mode or range is selected. See Figure 1. for
graphic illustration of switches and controls.
Ensure that your new RWS is received in pristine con-
dition, just as it left our factory. Complete and return
warranty registration card to Tramex or the supplier of
your RWS.
Conducting A Moisture Survey
1. Before commencing moisture testing, it is advisable
to familiarise yourself with the RWS, its functions
and principles of operation.
2. It is also advisable, prior to commencing your mois-
ture survey, to familiarise yourself with construction
details and specification, in particular, thickness of
exterior insulation, type and thickness of lamina,
number of layers of lamina and its reinforcing, coat-
ing and covering materials. The composition and
specification of the substrate material is also worth
knowing. This familiarisation will help you to make
the best use and interpretation of the RWS.
R.W.S.
User Guide
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TRAMEX RWS Specifications

General

Brand	TRAMEX
Model	RWS
Category	Measuring Instruments
Language	English