Concrete Encounter CME 4
User Guide
24/08/04
Where covered floor slabs are being tested, all covering
materials, adhesive residue, curing compound, sealers, paints
etc., shall be removed to expose a test area of clean bare
concrete. For removal of any existing flooring or adhesives,
strictly observe all the appropriate safety and health
practices relevant to cleaning and removal of these types of
materials. Removal of covering materials and cleaning if
required shall take place a minimum of 48 hours prior to
testing.
Use of water based cleaning methods that could lead to
elevated surface and/or sub-surface moisture levels in the
floor slab are not recommended, and testing after such
treatment could result in elevated readings.
No visible water in liquid form should be present on the
concrete at the time of testing with the CME 4.
Avoid testing in locations subject to direct sunlight or
sources of heat.
Use of artificial aids for accelerated drying of concrete is not
recommended. If they are being used it is recommended they
should be turned off at least four days before taking final
readings.
Testing procedures
1. Remove any dust or foreign matter from the Concrete
Encounter CME 4 electrodes before commencing tests.
Make sure that the floor slab being tested is clean and
bare and free from dust, dirt or standing water.
2. Push the ON button and press the instrument directly
onto the surface of the material being tested ensuring
that all of the electrode spring loaded pins are fully
compressed. Read the moisture measurement from the
appropriate scale of the moving coil meter dial.
3. On a rough surface, take a number of readings in close
proximity to one another. If the readings vary, always
use the one with the highest value.
8
CME4/1005
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