Table 1. Names and descriptions of the measurement scales available in GM-200
Scale No. Scale name
Description
1
Relative Scale
[%]
Basic scale. Shows the relative humidity of the material.
2
Anhydrite Screed
[Wt%]
This scale is meant for moisture measurements in anhydrite floors. The displayed value is
an approximation of the value that normally would be indicated using a CM-measurement
device.
3
Anhydrite screed
[Wt/CM%]
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).
4
Cement screed
[Wt%]
This scale is used to measure the moisture content of cement screed. The content of water is
expressed as a percentage of weight
5
Cement screed
[CM%]
This scale is used to measure the moisture content of cement screed. The displayed value is
an approximate value that can be also determined with the Carbide Method (CM).
6
Concrete
[Wt%]
This scale is used to measure the moisture content of concrete. The content of water is
expressed as a percentage of weight.
7
Gypsum screed
[Wt/CM%]
This scale is used to measure the moisture content of gypsum plaster. The content of water
is expressed as a percentage of weight.
8
Hardwood / Oak
[Wt%]
This scale is used to measure the moisture content of wood with a density of
0.6-0.9 [103 kg/m3] (i.e. oak). The content of water is expressed as a percentage.
9
Softwood / Spruce
[Wt%]
This scale is used to measure the moisture content of wood with a density of
0.4-0.55 [103 kg/m3] (i.e. spruce). The content of water is expressed as a percentage.
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.
CAISSON Elektronik GmbH
Boschstrasse 16, D-47533 Kleve, Deutschland
