Bedienungsanleitung Vonroc MM501DC (Seite 6 von 36) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Spanisch, Polnisch)

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Material modes (Fig. A, C)

The MODE button (3) on the front panel provi-

des a convenient way to switch between testing

wood and building materials. When the moisture

meter is powered on, it automatically enters wood

measurement mode. To switch between modes,

brieﬂy press the mode button (3). The moisture

meter automatically selects the WME% moisture

measurement of wood or building material.

Measuring wood (Fig. A, C, D)

Power on the moisture meter. The LCD will display

the word WOOD (9) and the pin-mode icon (10).

2. Remove the pin cover (6).

3. Remove the black rubber insulating sleeves

from the pins.

4. Carefully press the test pins into the sample. Its

absolute moisture level will be displayed as a

percentage, with the unit %WME (8). Simultane-

ously, the bar graph LEDs (4) will illuminate to

mirror the digital reading.

Note: In wood measurement mode, the available

moisture level range is 5% to 50%. When the level

is below 5%, the LCD will show __ __ __. When it is

above 50%, the LCD will show ______ .

Measuring building materials (Fig. A, C, D)

1. Power on the moisture meter.

2. Press the MODE button (3) to change the indi-

cation on the top line of the LCD from WOOD to

BLDG (11).The LCD will also display the pin-mo-

de icon (10).

3. Remove the pin cover (6).

Remove the black rubber insulating sleeves from

the pins. Carefully press the test pins into the

sample. Its absolute moisture level will be dis-

played as a percentage, with the unit %WME (8).

Note: In building material measurement mode, the

available moisture level range is 1.5% to 33%. When

the level is below 1.5%, the LCD will show __ __ __.

When it is above 33%, the LCD will show

______

Hold function (Fig. A, C)

To hold a digital reading, brieﬂy press the HOLD

button (2) within one minute of making the measu-

rement. The LCD will add the word HOLD (13) to

the digital reading, and the bar graph LEDs (4) will

“freeze” in their current state (illuminated or not).

To start a new measurement, simply press the

HOLD button (2) again.

Excessive-moisture alarm (Fig. A, C)

Whenever a test sample is determined to be “wet”

(above 16% moisture content for wood, or above

20% for a building material), one or more red LEDs

(4) will illuminate and the meter will produce an

audible alarm. The alarm will continue to sound

until the test pins are removed from the sample, or

moved to a drier area.

To silence the excessive-moisture alarm or re-ena-

ble it, press and hold the HOLD button (2) for at

least three seconds.

Calibration (Fig. A, E)

Although the moisture meter automatically cali-

brates each time it is powered on, you can also

manually check its calibration. Perform a calibra-

tion check whenever the meter cannot produce a

reading, or if multiple measurements of the same

sample produce very different readings. To manual-

ly check calibration:

1. Power the meter on

2. Open and remove the pin cover (6)

3. Flip the cover over and insert the test pins

(15) into the calibration holes (16) through the

top of the cover. The LCD should show a value

between 17.3% and 19.3%.

Note: If the reading is outside this range, please

contact VONROC customer service.

Hints for optimum use

Ideally, your test sample should be at least 9.5mm

thick. That is the thickness for which the meter is

calibrated. If your sample is too thin, readings may

be inaccurate.

Measurements of wood are inﬂuenced by two

variables: ambient humidity and the density of the

wood species. The best way to compensate for the

effect of these variables is to develop your own

moisture level curves, based on your experience

working with different species of wood.

5. MAINTENANCE

Clean the machine casings regularly with a soft

cloth, preferably after each use. Make sure that the

ventilation openings are free of dust and dirt. Re-

move very persistent dirt using a soft cloth moiste-

ned with soapsuds. Do not use any solvents such

as gasoline, alcohol, ammonia, etc. Chemicals such

as these will damage the synthetic components.

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