CAISSON PM-20 Operation Manual

PM-20

Wood/Building Material Moisture Meter

DESCRIPTION

The device PM-20 is used to measure the moistu­re content of wood and building materials - on con-
dition they are not conductive materials! The
measurement is invasive by two needles with use
of resistivity method. Equipped with 3.5 mm jack for
connecting a wide range of measurement accessories
(SP1, PP2, BE3, PE4, PE5, CK6, VK7). Through the
graphical display, the device is easy to use and ensures
a quick determination of the tendency of moisture.

• Graphic display.

• Language selection.

• Auto Power OFF.

• GE 10 forks electrode 10 cm.

• GE31 forks electrode 31 cm.

PRODUCT FEATURES

• Dimensions: 132 x 79 x 24 mm

• Weight: 220 g (with batteries)

• Power supply: two AA batteries

• Operating time: 20 hours (with new batteries)

• Display: monochrom, resolution 128 x 64 pixels, bac-

klight

• Display orientation: manual

• Operating temperatur: from 5ºC to 40ºC

• Storage temperature: from -25ºC to 70ºC

• Normal temperature: 20ºC

• Accuracy: 0,1% humidity

• 13 scales:

» Relative (%)
» Spruce (wt. %)
» Pine (wt. %)
» Hemlock (wt. %)
» Meranti (wt. %)
» Oak (wt. %)
» Robinia (wt. %)

» Larch (wt. %)
» Merbau (wt. %)
» Wenge (wt. %)
» Beech (wt. %)
» Mahogany (wt. %)
» Teak (wt. %)

Accessories:

1. SP1 - extra pair of needles

2. PP2 - outer needle probe with cable 70cm

3. PE3 - circular pair of depth probes 23cm

4. FE4 - fl at pair of depth probes 23cm

5. BE5 - brush pair of depth probes 23cm

6. CK6 - calibration check set

7. VK7 - additional cable for PE3, FE4,
BE5

CAISSON ELEKTRONIK GmbH

Boschstrasse 16, D-47533 Kleve, Deutschland

T: [phone]

[e-mail] www.caisson-gmbh.de

OPERATION MANUAL

1. Switch on the moisture meter

To turn it on, press the ON / OFF button. The moisture meter will automatically turn on without calibration.
After switching on the device, the last selected scale appears on the display. If the battery level is too low,
the device will indicate this and then switch off .

Connection

2. Switch off the moisture meter

The device will switch off automatically if it is not
used for a long time (after 5 minutes). This extends
the life of the inserted batteries. To manually turn off
the moisture meter, press and hold the ON / OFF but­ton. Each time the power is turned off , the last settin­gs (scale, language) are saved.

for the

sensor

3. Measurement

The device examines the properties of the material
by means of a remanence measurement. The die­lectric properties depend on the humidity, the bulk
density of the material and the metal elements.

CAUTION!! Metal parts (such as nails, screws) in the measuring range of the device increase the measu­red value. The measurement results are shown on the display. The moisture meter has 13 scales that allow
to determine the humidity of the given material. The selected area is shown at the bottom of the display.

Before the measurement, remove the protective cap. Press the measuring needles lightly into the wood
or plaster to be measured. The measurement is automatic, so that the measured value can now be read from
the display. As soon as the measuring needles are removed, the measured value changes. After the measu­rement, replace the protective cap.

As an optional accessory, attachable depth probes are available for measurements in plaster and masonry
(GE10, GE31). The probes are connected via 3½mm jack connection.

Function

buttons

4. Selection of the scale

By including 13 scales in the device you can do without the correction table. This makes the measurement
not only more accurate but also easier and more convenient. The selected area is shown at the bottom of the
display. To change the scale, briefl y press the ‚SET’ key.
CAUTION!! After switching on the device, the last selected scale appears on the display.

CAISSON ELEKTRONIK GmbH

Boschstrasse 16, D-47533 Kleve, Deutschland

T: [phone]

[e-mail] www.caisson-gmbh.de

5. Operating menu

The operating menu is used to change the
individual measuring scales as well as for
language selection. To get into the operating
menu, you have to keep the left and right
buttons pressed at the same time. The left
and right buttons are used for navigation in
the operating menu. The ‚ON / OFF’ button
changes the menu levels and confi rms the set
parameters.
CAUTION!! The most important parame­ters are protected against unwanted changes
by an additional warning and confi rmation
query. Pressing the Back button will take
you to the higher menu levels. Confi rming
the Back option at the fi rst menu level will
take you to the main window.

6. Voice dialing

The software has been designed to allow the setting of diff erent languages. The change of the language
occurs at the menu level. After switching to the operating menu, select the option ‚Language’ and se­lect the language by pressing the ‚ON / OFF’ key. Confi rm the selected language with the right button.
To avoid accidental changes,it must be confi rmed. Press ‚ON / OFF’ again to confi rm, press the left button
to ignore the changes. The language is also saved after removing the batteries.

7. Power supply

The moisture meter PM-20 is powered by two AA batteries. Approved is the use of simple batteries and
rechargeable batteries. The battery level indicator shows the discharge status of the batteries. If the battery
image is not fi lled, the battery change is necessary. The batteries must be replaced with a new battery pack
of the same type. Using a rechargeable battery in a kit with a single battery or a partially discharged battery
with a new battery is not permitted. The location of the batteries in the battery compartment is shown in the
fi gure below.

CAISSON ELEKTRONIK GmbH

Boschstrasse 16, D-47533 Kleve, Deutschland

T: [phone]

[e-mail] www.caisson-gmbh.de

8. Guarantee

Without prejudice to the statutory warranty, CAISSON warrants under the laws of your country, but for a mi­nimum of 2 years from the date of sale of the device to the end user. The warranty covers only defects caused
by material or manufacturing defects. When asserting a warranty claim, the original sales receipt must be
enclosed with the date of sale. Warranty repairs may only be performed by authorized CAISSON Distribu­tors. The waaranty does not include:

• improper applications,

• use of force, damage caused by extraneous or foreign objects, e.g. sand or water,

• damage due to non-observance of the instructions for use,

• normal wear.
Partially or completely disassembled devices are also excluded from the warranty.

CAISSON ELEKTRONIK GmbH

Boschstrasse 16, D-47533 Kleve, Deutschland

T: [phone]

[e-mail] www.caisson-gmbh.de