Romus HC-3 Manual De Instrucciones página 6

3. Measurement
The device analyses the dielectric properties of the material by measuring the electric field
emitted by a metal ball. Dielectric properties depend on moisture content, bulk density of
the material and metal elements. CAUTION! If metal parts (i.e. nails, screws) are present
within the measurement area, the results will be biased towards higher values. The results
of the measurement are displayed on the screen. The hygrometer has 4 scales that can be
used to determine the moisture content of the material. The selected scale is displayed at
the bottom of the screen.
To perform a measurement, press the metal ball to the material and press and hold the
"ON" button.
4. Scale selection
The device is equipped with multiple scales, which eliminates the need to use adjustment
tables. This makes measurements not only more precise, but also easier.
The selected scale is displayed at the bottom of the screen. To change the measurement
scale, briefly press the "SELECT MATERIAL" button. CAUTION! When the device turns on,
the display will show the latest selected scale.
Table 1. Names and descriptions of the measurement scales available in HC-3
Scale No. Scale name
Relative Scale
1
[%]
Anhydrite screed
2
[CM%]
Concrete
3
[Wt%]
Gypsum screed
4
[Wt/%]
5. "HOLD" function
The Hold function displays the last measured value. It is activated automatically when the
"ON" button is release. When the device switches to the Hold mode, the following symbol
appears at the top of the display on the status bar.
6. Menu
The operating menu allows for changinge alarm thresholds for the respective
measurement scales and selecting at language. To access the operating menu, press and
hold down the "SELECT MATERIAL" and "SELECT DISPLAY" buttons. Use the "SELECT
MATERIAL" and "SELECT DISPLAY" buttons to navigate the menu. Use the "ON" switch to
change menu levels and to confirm the settings. CAUTION! Critical parameters are
protected against unintended modification with the use of an additional warning and
request for confirmation.
To navigate to the parent menu, press "Back" and briefly press the "ON" button. To exit to
the main window, confirm the "Back" option of the top level menu.
Mode d'emploi
Description
Basic scale. Shows the relative humidity of the material.
This scale is used to measure the moisture content of anhydrite. The displayed value is an
approximate value that can be also determined with the Carbide Method (CM).
This scale is used to measure the moisture content of concrete. The content of water is
expressed as a percentage of weight.
This scale is used to measure the moisture content of gypsum plaster. The content of water
is expressed as a percentage of weight.
93271 - INDICATEUR D'HUMIDITE HC-3