User manual
Portable leather moisture
humimeter LM6
Version 2.4_en
© Schaller GmbH
2017
page 2 Version 2.4_en
Start-up
Insert the four delivered 1.5V Alkaline AA 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. If your moisture meter is provided
with an optional USB port, you have to
remove the protection cap before.
2.) Press with your finger onto the arrow of
the battery cap und pull it back.
3.) Put the four 1.5V Alkaline AA batteries
in the device. Make sure that the position of the battery poles is correct.
4.) Press down the batteries and close the
cap.
Design of device
temperature
value
measuring
value
batteries slot
(flipside)
selection of
calibration
curve
ON button
optional USB interface
calibration
curve
Version 2.4_en page 3
Measuring procedure
1. To ensure best possible measuring
results, please make sure that the device
has nearly the same temperature than
the material to measure.
2. Switch on the device: Press the key
for three seconds.
3. Select the right calibration curve (density
of leather) using the buttons or . The
name of the calibration curve is shown at
the top of the display.
4. Hold the device centrally in one hand and
press it onto the leather with a compact-
ting pressure of 4 kg. For the measurement, the leather has to be piled to guarantee a minimum thickness of 10mm!
5. The display immediately shows the water
content (11.7%) and temperature.
6. To save the results in the save menu
press the ( button). The storage was
successful when the number in front of
the symbol increased. To reach the
store menu please press the left ( )
button.
7. To name the saved results press the
button and additional data like batch
number can be added.
page 4 Version 2.4_en
Calibration curves overview
Name
Explanation
Leather LD
Leather with a density of 550 kg/m³
Leather CR
Leather with a density of 600 kg/m³
Leather MD
Leather with a density of 650 kg/m³
Leather FOC
Leather with a density of 700 kg/m³
Leather HD
Leather with a density of 750 kg/m³
Leather VHD
Leather with a density of 800 kg/m³
Reference
! only for checking the moisture meter !
Selection of calibration curves
Due to different manufacturing methods and different densities of
the leather there is no standardised allocation of calibration curves.
In the above list of calibration curves you can find information
regarding density that enables a pre-selection of the calibration
curve.
To ensure the best accuracy of your measurement, we recommend
carrying out a comparison measurement by kiln-drying (EN ISO
4684) once:
1.) Take a leather pile of 10-15 mm of the format A6 with average moisture content.
2.) Measure the water content of this leather pile using all available calibration curves and write down the measuring results of
the different calibration curves.
3.) Take the 2 top leather pieces of the pile and carry out a reference measurement according to EN ISO 4684.
4.) Compare the determined reference water content with the
measuring results of all calibration curves. Use the calibration
curve with the measuring result nearest to the reference water
content.
Version 2.4_en page 5
Reference water content
The humimeter LM6 determines the water content, which means
that it calculates the moisture referred to the total mass (according
to EN ISO 4684):
100%
Mn
MtMn
WG
List of calibration curves
Pressing the or key in the measuring
window for at least three seconds, a list with
all available sorts will appear. Select your
sort by pressing or and confirm it with
the key. The measurement will continue
automatically.
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:
Activate 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.
Mn: Mass with average moisture content
Mt: Mass of the dried sample
%WG: Calculated water content
page 6 Version 2.4_en
Checking the calibration
We recommend to check the calibration of the humimeter LM6
every 4 weeks, using the proof plate delivered with the device. For
this check the device has to show a temperature between 20.0 and
26.0°C.
Switch on the instrument and select the
calibration curve „reference“ using the
arrow keys. Hold the humimeter LM6 in one
hand and press it onto the grey proof plate
(compacting pressure of 4.0kg).
The shown measuring value should range
between 14.5 and 15.5. If the shown value
is out of this range, you have to carry out a
calibration (see instructions below)
Calibration
If the deviation revealed in the calibration
check is out of tolerance, it can be corrected
as follows:
Press the left key twice to reach the menu
level. Navigate to the menu item „Options“
using the arrow keys. Confirm by pressing
the button.
Select the menu item „Calibrate“ using the
arrow keys and confirm by pressing the
key.
The request “Reinitialize?” will appear at
the display.
Hold the humimeter LM6 in one hand and
make sure that nothing stands behind the
measuring field (black plate). Now press the
second button ( ) with one finger.
The calibration procedure will take a few
seconds. During that time, the instrument
has to be held up in the air and the measuring field must NOT be touched.
The device is ready when the shown picture
on the right disappears automatically.
Version 2.4_en page 7
Menu level overview
Keypad symbols
Measuring window:
Rolling Menu
Power ON / OFF
Switch upper
Switch lower
Save
Hold
Watch saved data
Enter supplier´s
data
Menu:
Enter
Switch upper
Switch lower
Exit
Enter numbers
Enter letters
Next or right
Left
Yes
No
Shift
OK
Overview main menu
Edit Logs
Manual Logs
Clear Logs
Print Logs
Last Logs
All Logs
Clear Logs
Send Logs
Manual Logs
Clear Logs
Options
Status
Options
Bluetooth
Date / Time
Log Time
Calibrate
Language
Unlock
°C / °F
O Userlevel
BL On Time
Auto Off time
Materialcalib.
Password
Reset
Save menu
Type selection menu
Main menu
Next calibration curve
Last calibration curve
Switch off (3 sec.)
Watch the saved data (logs)
Switch off (3 sec.)
Enter new log
Switch lower
Switch upper
Open this menu/Enter
page 8 Version 2.4_en
Changing battery
If the battery symbol appears in the measuring
window or if a critical charge of battery is shown in
the status (!), the batteries have to be changed
IMMEDIATELY. Also remove the batteries if you do
not use your humimeter device for a longer period.
For eventual resulting damages we cannot provide
any warranty.
Operating the instrument
Switching on: Press for three seconds.
Setting date and time: Two times -> Options -> Date / Time
Saving: Press the button to switch to the save
menu level. Press the button to save
the shown measuring value. To name the
saved results press the button.
Hold: Select the menu item „Options“, then
select „Log time“. Activate the Hold function there and change to the measuring
window again. When the symbol is
pressed, the shown measuring value is
frozen on the display until another button
is pressed.
Display lighting: Press the key briefly; the display
lighting switches off automatically after 30
seconds. The lighting is activated automatically when pressing any button.
Switching off: Press the key in the measuring window
for five seconds. The instrument switches
off after releasing the key. The instrument
switches off automatically after approx.
four minutes.
Measuring range: If the measuring value is blinking in grey,
the measuring range has been exceeded.
In this case the
measuring accuracy
is decreasing.
Version 2.4_en page 9
Transfer saved data to the PC
(only possible with optional USB interface!)
To send your saved logs to the PC, connect
the humimeter device to your PC using the
USB cable that was delivered with your
device. Carefully loose the protection cap on
your humimeter and plug in the USB mini B
connector. The bigger connector has to be
connected to a USB slot on your PC.
Start the LogMemorizer software on your
PC and switch on your humimeter.
The data transfer can be started on your
humimeter or on the software.
Starting the data transfer on the humimeter:
Press the key until you reach the menu
(see image on the right). Then choose
„Send Logs“ and confirm by pressing the
key. Now choose „Manual Logs“ and
confirm with again. All saved logs will be
sent to your PC.
Starting the data transfer on your PC:
Press the button „communication“ in the
LogMemorizer software. A menu with
several options opens (see image below).
For transferring the data you can select „get
last manual log“ (the last saved measuring
series is transferred) or „get all manual logs“
(all saved logs are transferred).
If you click on one of these buttons, the
transfer starts immediately.
For the basic adjustments of the software
please press the F1 key and look into the help
file.
page 10 Version 2.4_en
Print saved data
(only possible with optional USB interface and Schaller
thermo printer!)
To print your saved data, connect the device
to the printer using the printer cable that
was delivered with your device. Carefully
loose the protection cap on the humimeter.
At first plug in the side of the connector with
the close plastic casing at the humimeter.
Then switch on the device.
Not till then the other side of the cable has
to be plugged in at the printer. Switch on the
printer by pressing . Now the green LED is
blinking. If it does not blink, please change
the batteries and try again.
Press the button at your humimeter until
you reach the menu (see image on the
right). Choose „Print Logs“ and confirm by
pressing .
Now you can select if you want to print the
last saved measuring series or all saved
measuring series (logs).
Confirm by pressing again. The selected
logs are printed out now.
To save paper, please think of clearing the
data storage regularly.
Version 2.4_en page 11
Technical Data
Measuring depth
5 mm
Minimum material thickness
10 mm
Range of leather density
525 to 825 kg/m³
Resolution
0.1 % water content; 0.5 °C/°F temp.
Measuring range
3 to 65 % water content
Operating temperature
0 °C to 40 °C, 32 to 104 °F
Storage temperature
-20 °C to +60 °C, -4 to 140 °F
without batteries
Measuring value storage
up to 10,000 measuring values
Temperature compensation
automatically
Menu languages
German, English, French, Italian,
Spanish, Russian
Power supply
4 x 1.5 Volt AA Alkaline batteries
Current draw
60 mA (incl. display backlight)
Display
128 x 64 matrix display with backlight
Dimensions
147 x 75 x 30 mm
Weight (incl. batteries)
265 g
Protection class
IP 40
Scope of supply
humimeter LM6, 4 x 1.5Volt AA Alkaline
batteries, rubber protection cover,
wooden case with test plate, user manual
Options
USB interface incl. cable and PC
software, portable printer (only with USB
available), bluetooth modul (only with
USB available)
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 or direct sunlight
exposure. Clean your device using a dry cloth. Any kind of wet
cleaning damages 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.
page 12 Version 2.4_en
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 your dealer.
Common reasons for incorrect measurements
Product temperature out of application range
Material below 0°C resp. above +40°C may lead to wrong
measurements.
Inadequate thickness of the leather pile
A single leather hide MUST NOT be measured. Pile the leather
to ensure a thickness of at least 10 mm.
Discrepancy in temperature between device and material
Please ensure that the device and the material under test are
being stored at the same temperature before measuring (+/3°C). A high temperature difference has a negative effect on the
stability of the measurement results.
Wrong calibration curve
Double-check the selected calibration curve before measuring
curve.
Contact pressure is too low
Ideal is a contact pressure of 4 kg.
Interfering material
To prevent that the measuring value is influenced by the bottom
(table or similar), we recommend to pile the material to
measure.
Rain-wet and mouldy material
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