Schaller Humimeter PM4 User manual

User manual
humimeter PM4
paper moisture meter
with paper temperature measurement
version 2.0_en
© Schaller GmbH
2016

page 2 version 2.0_en
Measuring procedure
1. Switch on the device by pressing the
power button ( )for 3 seconds.
2. As the next step, please do the self
calibration. The word “Reinitialize?” will
show up on your display. Accept by
pressing the button. Hold the
humimeter PM4 in one hand up in the air
and make sure that nothing stands
behind the steel clamps (distance min.
200 mm). 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
(steel clamps) must NOT be touched.
Hold PM4 same in your hand like at
measuring process. The device is ready
when measuring menu appears at
display.
3. Select the right calibration curve using
the buttons or . The name of the
calibration curve is shown at the top of
the display. Please see the instructions
for selection of calibration curve below.
4. Hold the device in one hand and press it
onto the paper roll (at the breadth) resp.
onto the paper pile with gentle
compacting pressure (1,0 kg). The
contact-free temperature sensor on the
back side must not be covered.
5. Now the display shows the water content.
The temperature of the paper is shown
on the left.

version 2.0_en page 3
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. The menu level „Options -> Log time”
offers the possibility to activate the menu
item „3 sec.“. If you press the (
button) in the measuring window after
activation, the device will save a
measuring value every 3 seconds.
8. Pressing the button ( button)
completes the saving series. Now you
can name the saved values using the
arrow keys (supplier 1).
Checking the calibration
We recommend to check the calibration of your humimeter PM4
every 4 weeks, using the proof plate delivered with the device. For
this check the device has to show a temperature between 18,0
and 24,0°C.
Switch on the instrument and select the
calibration curve „reference“ using the arrow
keys. Hold the humimeter PM4 in one hand
and press it onto the grey proof plate
(compacting pressure of 1,0kg). Make sure
that you hold the device horizontally and the
steel clamps are positioned at least 1 cm
from the edge of the proof plate.
The shown value should range between 18,5 and 20,5.
If the shown value is out of this range, please contact Schaller
GmbH.

page 4 version 2.0_en
100%

MnMtMn WG
Selection of calibration curve
Due to the countless number of paper types there is no
standardised allocation of calibration curves. The different
calibration curves refer to the different densities of paper or paper
rolls. The list of calibration curves below shows suggestions for
paper types.
To ensure the best accuracy of your measurement you have to
carry out a comparison measurement using your online moisture
measuring system or by kiln-drying (according to DIN 287) once.
1.) Measure the water content of your paper using all calibration
curves that offer realistic results and write down the measuring
results of the different calibration curves.
2.) Now please note the effective water content determined by
your online measurement system or carry out a reference
measurement according to EN ISO 287.
3.) Compare the determined reference water content with the
measuring results of the different calibration curves. Use the
calibration curve with the measuring result nearest to the
reference water content. Info: The name of the calibration curve
can be modified to your specific paper name!
Determination of the reference water content
The humimeter PM4 determines the water content, which means that it
calculates the moisture referred to the total mass (EN ISO 287):
Contact-free temperature sensor
The back side of the humimeter PM4
contains an embedded temperature sensor
for the contact-free temperature
measurement below the sensor. This
ensures the determination of the
temperature of the product within seconds
and consequently the temperature
compensation of the displayed water
content.
The sensor must not be covered by a hand or any other object!
Mn: Mass of the sample before drying
Mt: Mass of the dried sample
%WG: Calculated water content

version 2.0_en page 5
Calibration curves
name
paper type
density
600 paper
Very low density paper
600 kg/m³
650 paper
Low density paper
650 kg/m³
700 paper
Low density paper
700 kg/m³
750 paper
Fluting, Schrenz
750 kg/m³
800 paper
Newsprint paper
800 kg/m³
850 paper
Kraftliner brown
850 kg/m³
900 paper
Kraftliner White Top, Testliner brown
900 kg/m³
950 paper
Testliner white, copy paper
950 kg/m³
1000 paper
Copy paper, LWC raw
1000 kg/m³
1050 paper
Copy paper calendered
1050 kg/m³
1100 paper
Copy paper calendered
1100 kg/m³
1200 paper
LWC calendered
1200 kg/m³
1300 paper
Flysheet paper
1300 kg/m³
1400 paper
Flysheet paper
1400 kg/m³
1500 paper
Flysheet paper high density
1500 kg/m³
1600 paper
Flysheet paper very high density
1600 kg/m³
Empty 1700
For creation of customer calibration curve
Empty 975
For creation of customer calibration curve
Empty 550
For creation of customer calibration curve
reference
! Only for checking the instrument !
List of calibration curves
By pressing one of the arrow keys in the
measuring window for approx. 3 seconds a list
of all available calibration curves opens. Now
you can select your desired curve using the
arrow keys and confirm by pressing .

page 6 version 2.0_en
Design of the device
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.
The instrument is not rainproof. Keep it in dry areas. Clean the
device only with a dry cloth (excluded temperature sensor). For
cleaning the steel clamps you can also use alcohol. Please do not
deform the steel clamps.
Do not touch the contact-free temperature sensor. Clean it by
blowing, but do not use compressed air.
If the device is not 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.
name of
calibration
curve
rolling menu
button
protective
rubber
housing
(removable)
ON-OFF
button
measuring
value
water content
measuring
value
temperature
steel clamp
(sensor area)
slot for accu
(backside)
changing the
calibration
curve
USB socket

version 2.0_en page 7
Next calibration curve
Previous calibration curve
Power off (3 sec.)
Watch last saved data
Save new value
Power off (3 sec.)
Switch upper
Switch lower
Open this menu/Enter
type selection menu
store menu
main menu
Keypad symbols
measuring window:
Rolling menu
Power ON / OFF
Switch upper
Switch lower
Save
Hold
Watch saved data
Add supplier´s data
menu:
Enter
Switch upper
Switch lower
Back
Enter numbers
Enter letters
Next or right
Left
Yes
No
Shift
OK
Menu level overview
Data storage
Manual logs
Auto logs
Clear logs
Print logs
Last logs
All logs
Clear logs
Send logs
Manual logs
Auto logs
Clear logs
Options
Status
Options
Date / Time
Emission ratio
Log Time
Language
Unlock
°C / °F
Calibrate
o Userlevel
BL On time
Auto Off time
Materialcalib.
Password
Reset
SN.
Logo
TM
Admin
Overview main menu

page 8 version 2.0_en
Charging the batteries
Connect the provided USB cable to the
device and the other end of the cable to a
PC or another USB charging adapter. It
takes about 6 hours to charge the
completely discharged batteries. Please
make sure that the temperature during the
charging process is between 0°C and
45°C, as otherwise the batteries may be
destroyed.
Hardware Reset
In case that your humimeter device does not respond
to any key press or cannot be switched on, there can
be carried out a hardware reset directly by the
customer. Please note: the accumulator must be
charged before your start the following procedure:
Slide a pair of tweezers or a small screw driver below
the cover cap. If your tool stick, try again at another
position (the arrows on the image show the
positions). Do not use any force. Open the cover cap
and push the push button using your tool. Now the
humimeter will restart. Fix the cover cap again.
If it will not restart, please contact your technical support.
Exemption from liability
For miss-readings 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.

version 2.0_en page 9
Transfer saved data to the PC
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 PM4.
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 select „Send
Logs“ and confirm by pressing the key.
Now select „Manual Logs“ and confirm by
pressing again. All saved logs will be sent
to your PC.
Starting the data transfer on your PC:
Press the button „remote control“ in the
LogMemorizer software. A drop-down menu
with several options opens (see image
below).
For transferring the data you can select
„Import last manual log“ (the last saved
measuring series is transferred) or „Import
all manual logs“ (all saved logs are
transferred).
If you click on one of these menu items, the
transfer starts immediately.
For the basic adjustments of the software
please look through the instructions on the
LogMemorizer USB flash drive.

page 10 version 2.0_en
Print saved data (logs)
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
PM4. At first plug in the side of the
connector with the close plastic casing at
the humimeter PM4. 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). Select „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.
Emission ratio
The infrared temperature measurement
depends on the emission ratio of the
measured product. By default, the
humimeter PM4 contains the emission ratio
of paper (0.950). For changing this value,
please proceed as follows:
Press the key as long as you reach the
main menu. Choose the menu item
“Options” and confirm by pressing . Then
choose the item “emission ratio” and confirm
with again.

version 2.0_en page 11
Technical data
Measuring depth 50 mm
Minimum material thickness 100 mm
Resolution 0.1% water content; 0.1°C; 0.3°F
Measuring range 1 to 25% water content
Temperature measurement -25°C to +125°C; -13°F to 256°F
Angle temperature sensor 90°
Paper temperature 0°C to +80°C; 32°F to 176°F
(for moisture measurement)
Surrounding temperature 0°C to +50°C; 32°F to 122°F
(for measuring device)
Storage temperature -20°C to +60°C; 32°F to 122°F
(for measuring device)
Temperature compensation automatically
Memory for measured values up to 10.000 values
Menu languages German, English, French, Italian, Spanish,
Russian
Power supply 4 pcs. 1.5 Volt AA Alkaline batteries
(for approx. 900 measurements)
Switch off time after approx. 4 minutes
Power consumption 60 mA (with display lighting)
Display 128 x 64 matrix display,
with LED backlighting
Dimensions device 182 x 75 x 54 mm
Weight device 340g
Protection class IP 40
Dimensions case 340 x 275 x 83 mm
Weight case & device 1,1 kg
Scope of supply humimeter PM4, accumulator, USB data
interface, contact-free temperature
sensor, plastic case, proof plate,
protective rubber housing, user manual
Options mobile printer

page 12 version 2.0_en
Common reasons for incorrect measurements
Wrong calibration curve
Double-check the correct selection of the calibration curve
before measuring.
Inadequate thickness of the paper pile
A single sheet of paper must NOT be measured. Make sure
that the paper pile below the steel clamps has a thickness of
at least 100 mm.
Electro conductive material
Every metallic object as well as electro conductive packing
material e.g. paper coloured by soot or wire has a negative
effect on the accuracy of your measurement. Make sure that
in an area of 20 cm below the sensor steel clamps there is no
such material.
Product temperature out of application range
Paper temperature for moisture measurement must be
between 0 and +80°C (32 and 176 °F).
Discrepancy in temperature between device and material
Please ensure that the device and the material under test are
being stored at nearly the same temperature before
measuring. A high temperature difference has a negative
effect on the stability of the measurement results.
Measurement at the front side
A measurement at the front side of a paper roll will bring
different measuring results. For that you have to select a
different calibration curve.
Bended steel clamps
If the steel clamps (measuring area) are bended you might get
wrong measuring results.
Please note:
After measuring at the running paper roll for a longer period
the steel clamps will get hot –don´t touch! => risk of getting
burned!
Measuring fine paper at the running roll may cause pressure
marks on the paper => for possible damages at the paper we
refuse any liability.