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The world’s most
advanced Moisture and Relative humidity Meter for the flooring industry,
the CRH measures Moisture Content, Relative Humidity, Temperature
and Dew Point in concrete and gypsum flooring.
The CRH Moisture/RH meter
enables you to carry out 4 individual tests:
-
Measure
non-destructively and instantly the moisture content in concrete and
gypsum flooring
-
Measure
the relative humidity, temperature and dew point within the floor
slab or screed using the
(below surface) In-situ method
-
Measure
the relative humidity, temperature and dew point above the surface
of the floor slab or screed using RH hood test methods
-
Measure
the relative humidity, temperature and dew point of the environment
that the floor is
being installed
The CRH allows you to carry out the most appropriate tests
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How does it work?
In Moisture measuring mode it uses the principle of electrical
impedance measurement to give accurate non-destructive moisture readings
in concrete and gypsum floor screeds.
From Electrodes with special spring mounted probes on the base of the
instrument, a low frequency signal is transmitted into the material being
tested to measure the electrical impedance.
In Hygrometer mode it uses a solid state capacitive sensor RH probe
to give accurate and fast relative humidity and temperature readings.
While being easy and
uncomplicated to operate the CRH has a powerful micro controller, which
processes the information received and accurately calculates the moisture
content, relative humidity, temperature and dew point and displays it
on the clear digital display. It has a high capacity non-volatile memory
chip which stores and retains its data. This information can be recalled
at any time by scrolling and reading directly from the instrument’s
own display or downloaded to a PC for storage and inclusion on spread
sheet or report.
Features
- Two versatile measuring
modes, measures moisture content plus relative humidity, temperature
and dew point with plug in RH probe
- User can switch
between moisture meter and hygrometer modes
- Non-destructive
moisture measurement
- Stores up to 900
recorded readings in 30 files
- Recorded readings
can be recalled and displayed on dot matrix LCD
- Download recorded
reading to pc for transfer to word processing or spread sheet
- Choice of scales
to suit different types of floor slabs and screeds
- Operates on time
proven impedance measurement principle
- Instant readings
on clear LCD display
NEED for the CRH
Excessive moisture in concrete floor slab and screeds can lead to a host
of problems in all types of floor coverings such as: adhesive degradation,
delaminating of the floor covering from the slab and within itself, condensation,
blistering, movement and deterioration of the covering. In the case of
wood flooring, excess moisture can lead to swelling, cupping and movement
of the wood which can lead to floor failure and even structural damage.
Excess moisture can also lead to mold, and mildew as well as the emission
of harmful vapours. Most of these problems can be related to the floor
covering being installed on a sub floor that is not sufficiently dry.
It is therefore important to insure that the floor slab or screed is
sufficiently dry enough to accept a covering.
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