Schaller Messtechnik humimeter GE1 User manual

User manual
floor screed moisture meter
humimeter GE1
Version 1.0_en
© Schaller GmbH
2015

page 2 Version 1.0_en
Evaluation scale of measuring value
For some calibration curves, the measuring value shown on the display is
evaluated in 4 different increments. This evaluation scale bases on the
experience of Schaller GmbH. As the increments can differ according to the
craft resp. business, a plausibility check is recommended.
At increasing moisture, the 4 increments are:
dry -> optimum -> moist -> wet
The evaluation scale differs depending on the material!
Design of GE1 basic device (article no. 13400)
calibration curve
temperature measuring value
batteries slot
(flipside) selection of
calibration curve
Power button
evaluation

Version 1.0_en page 3
Measuring procedure GE1 basic device
To switch on the instrument, press the key for
three seconds.
After showing the logo, the measuring window
opens and the current measuring values are
displayed.
Now you can select the desired calibration curve
by pressing or . The calibration curves saved
in the device can be found in the list below.
Look for some representative positions that are suitable for monitoring the
floor screed moisture. The thickness of concrete in these places has to be at
least 30mm.
Please make sure that there are no pipes, electric cables or iron gratings in
this area. Metal objects within the measuring field of 30mm lead to incorrect
measuring values.
Before measuring, clean the measuring area with a broad scraper. The
measuring device has to rest on the concrete with its full surface without any
air space. The measuring area must not be polluted by grit.
Select the calibration curve that best fits your material to measure using the
arrow keys. For a list of material types and corresponding densities, please
see the chart below.
Please ensure that the measuring instrument has nearly the same
temperature than the material to measure.
Press the measuring instrument with downward measuring surface
with a pressure of approx. 4kg onto the cleaned measuring area. The
water content is displayed immediately.
The interpretation of the shown floor screed water content needs the
experience of the user, based on the recommendations of the floor screed
producer.
The thickness of floor screed can differ. The humimeter GE1 always
measures the supreme layer of 30 mm.

page 4 Version 1.0_en
If the thickness of floor screed is less than 30 mm, iron gratings, heating
pipes and other metal can cause an incorrect measuring value. Therefore
please look for a measuring position without any metal in the measuring
field.
The device displays an average value of a layer of 30 mm. The moisture of
deeper layers may be considerably higher than that value.
The water content of deeper layers can only be determined by the CM
method or in a drying chamber.
List of calibration curves
calibration curve description density measuring
range
floor screed cement screed
normally compacted
approx.
2000kg/m³ 0.5 to 4.5%
CM floor screed
cement screed
normally compacted
conversion in CM %
approx.
2000kg/m³ 0.2 to 4.0%
concrete concrete normally
compacted
approx.
2400kg/m³ 0.5 to 5.0%
anhydrite
floor screed
anhydrite floor screed
normally compacted
approx.
2600kg/m³ 0.5 to 5.0%
Digit ------- 0 to 100
reference
! only for device check!
------- -------
Information regarding measurements with GE1 basic device
Screed and concrete
The degree of drying and the moisture dispersal can differ significantly.
Therefore we recommend to find out the wettest area by effecting a large
number of measurements with the humimeter GF2. Then knock off the
bottom layer of the wettest area and effect a final evaluation by drying in a
drying chamber or via CM device.

Version 1.0_en page 5
Density ranges:
Concrete: between 2200kg/m³ and 2600kg/m³
Floor screed: between 1800kg/m³ and 2200kg/m³
Anhydrite floor screed: 2600kg/m³
CM method
Another common method of determining the moisture of the bottom layer
of screed is the CM method. The accuracy of the CM method depends on
various parameters and is not suited for a comparison with the humimeter
GF2 resp. for material calibration. In the following chart of producers of CM
devices you can find comparative values of measurements in drying
chamber in weight% to CM% for some concrete types. Please find
comparative values for other concrete types in the user manual of your CM
device.
CM calibration curve
The CM floor screed calibration curve is a conversion from water content
into CM %. The measurement values of this calibration curve are guidance
values and do not replace the CM method. However, via the non-destructive
measuring process of the GF2 the measurement is simplified. Subsequently
a CM measurement according to the norm is recommended
cement
screed
weight %
1.8 2.2 2.7 3.2 3.6 4.1 4.5 5.0
CM %
0.7 1.0 1.4 1.8 2.1 2.5 2.9 3.2
anhydrite
floor
weight %
0.1 0.3 0.6 1.0 1.4 1.8 2.2 2.5
CM %
0.1 0.3 0.6 1.0 1.4 1.8 2.2 2.5
concrete
B15,B25,B35
weight %
1.3 1.9 2.5 3.2 3.8 4.4 5.0
CM %
0.3 0.8 1.3 1.7 2.2 2.7 3.2
If your CM device shows a cement screed moisture value of 1.8 CM%, this
value corresponds to 3.2 weight% corresponding to the norm method in the
drying chamber.

page 6 Version 1.0_en
Menu level overview
Service
menu
Switch lower
Options
Status
Options
Language
Unlock
°C/°F
Calib.
Userlevel
Materialcalib.
Password
Reset
Status
Type selection menu
Switch upper
Open this menu/Enter
Power off
Keypad symbols
Measuring window:
Rolling Menu
Power ON / OFF
Switch upper
Switch lower
Hold
Menu:
Enter
Switch upper
Switch lower
Exit
Enter numbers
Enter letters
Next or right
Left
Yes
No
Shift
OK
Previous calibration curve
Next calibration curve
Hold last measuring value

Version 1.0_en page 7
Changing the batteries
The delivery of your humimeter GE1 contains 4 enclosed batteries. Please
insert resp. change the batteries as follows:
1.) At first remove the rubber protection cover.
For that, hold the rubber protection cover at
the upper side and pull it over.
2.) Press with your finger onto the arrow of the
battery cap und pull it back.
3.) Remove the empty batteries.
4.) Put four new 1.5V Alkaline AA batteries in
the device. Make sure that the position of
the battery poles is correct.
5.) Press down the batteries and close the cap.
6.) Mount the rubber protection cover again.
If the battery symbol appears in the measuring window resp. if a critical
charge of battery is shown in the status (!), the batteries have to be changed
IMMEDIATELY. If you do not use your humimeter device for a longer period,
remove the batteries. For eventual resulting damages we cannot provide
any warranty.

page 8 Version 1.0_en
Operating the instrument
Switching on: Press for three seconds.
Changing the calibration curve: press or .
Switching off
Press the key in the measuring window for 5 seconds. The instrument
switches off after releasing the key. The instrument switches off
automatically after approx. four minutes.
Activation of the “super user” function
2 times - Options – Unlock
Enter the 4-digit password by using the button (standard is the 4-digit
serial number) and confirm by pressing the button.
Changing the Userlevel
Changing from advanced user to single user:
Make sure that you have activated the “super user” functions according to
the instructions above. Afterwards change to the menu and choose
„Options“.
In the submenu please select „o Userlevel“ (2 times - Options –
o Userlevel)
Confirm by pressing the button. Now the single user is activated.
Changing from single user to advanced user:
Keep both the buttons and pressed directly after switching on the
device. Your humimeter automatically starts the main menu. Activate the
“super user” functions according to the instructions above.
Navigate to “Options – o Userlevel” and confirm by pressing the button.

Version 1.0_en page 9
Notes
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page 10 Version 1.0_en
Device maintenance instructions
To provide a long life of your device please do not expose it to strong
mechanical loads or heat e.g. dropping it or direct sunlight exposure.
Clean your device using a dry cloth. Any kind of wet cleaning or cleaning
agents may damage the device.
The instrument is not rainproof. Keep it in dry areas. When the device isn’t
used for a longer period (2 months) or when the batteries are empty, they
should be removed to prevent a leakage of the battery acid.
Exemption from liability
For misreadings and wrong measurements and of this resulting damage we
refuse any liability. This is a device for quick determination of moisture. The
moisture depends on multiple conditions and multiple materials. Therefore
we recommend a plausibility check of the measuring results. Each device
includes a serial number and the guarantee stamp. If those are broken, no
claims for guarantee can be made. In case of a faulty device, please contact
Schaller GmbH (www.humimeter.com) or our dealer.

Version 1.0_en page 11
Technical data humimeter GE1 (article no. 13400)
Measuring depth
30 mm
Minimum material thickness 30 mm
Resolution 0.1% water content; 0.1°C ; 0.3°F
Measuring range 0% to 100% water content
(dependent on the material)
Operating temperature 0°C to +50°C
Storage temperature -20°C to +60°C
Temperature compensation automatically
Menu languages English, German, French,
Italian, Spanish, Russian
Power supply 4 pcs. of 1.5Volt AA Alkaline
batteries (900 measurements)
Auto Switch Off after approx. 4 minutes
(adjustable)
Power consumption 60 mA (with light)
Display matrix display, lighted
Dimensions 150 x 75 x 30 mm
Weight 270g (with batteries)
Degree of protection IP 40
Scope of supply humimeter GE1, 4 x 1.5Volt AA
Alkaline batteries

page 12 Version 1.0_en
!IMPORTANT! Please read
Most common reasons for measuring errors
•In case of dew on the measuring device resp. on the sensor make sure
to wait until it is completely dry again. Switching on resp. using a dewy
device may lead to wrong measuring results and in the worst case may
destroy the device.
•Direct sunlight exposure causes the display of wrong temperature and
resulting wrong water content.
•A temperature difference between measuring device and material to
measure strongly influences the measuring value. Therefore let the
device adjust to the surrounding temperature.
•Wrong calibration curve: double-check the selection of the right
calibration curve
•It is obligatory that the measuring instrument rests on an even measuring
area without any air space! In addition, the measuring area has to be
cleaned from sand or anything similar.
•The measuring depth is 30 mm. Deeper layers with a possibly higher
water content cannot be measured!
•Calibrated for hardened and conditioned building materials
•Electric cables, insulation or iron gratings in the measuring field lead to
measuring errors!
•Wrong calibration due to changed material composition because of
various additives e.g. insulation material, chemical substances