Technical Data; Maintenance And Cleaning - VOLTCRAFT MF-100 Mode D'emploi

6. Place the spherical head on smooth surfaces, Rough surfaces product inaccurate readings.
7. The penetration depth of the device is 20 to 40 mm. Depending on the density of the
material, reading of inner depth is not possible. If the material is less than 2 cm thick, the
moisture content value may not be as accurate due to influence from adjacent material.
8. The spherical head must be kept perpendicular to the surface being measured.
9. The density of the measured material is an important factor to the measured value. The
measured value increases with density.
10. A main field of application for this device is for comparative measurements, comparing
measured values against a reference value. The reference value is established by
measuring a similar or identical material at a clearly dry area. If the subsequent
measurements are much higher than the reference value, it can be deduced that the areas
being measured are damp. This procedure is well suited for water damage assessment, to
detect leaking locations and areas of high humidity.
b) Measuring the moisture content
1. Turn the measuring device on by using the on/off button (5). The device automatically
switches into "HOLD" (12) mode, i.e. no measurement is possible at this stage.
2. The measurement device has to be calibrated each time it is turned on. To calibrate it, hold
the measuring device up in the air, so that it does not touch any objects. The minimum
distance to any other surface should be 8 to 10 cm. Press the MEAS button (7) to start
the calibration.
3. During calibration, the LCD will show <CAL>.
4. After completion of the calibration, the LCD (6) will display the current humidity reading (10).
This value should be less than 0.5. If not, turn the measurement device off and repeat the
calibration.
5. Position the humidity sensor's spherical head (1) at a right angle to the surface. The display
will show the reading.
6. Move the measurement device to conduct measurements of larger surface areas. The
LCD should thereby display the current reading as well as the maximum (11) and minimum
reading (16).
7. If required, press the MEAS button to freeze the readings on the display. The display will
show "HOLD", in addition to the last measured reading.
8. The readings are then displayed on the LCD for another 60 seconds, before the
measurement device turns itself off.
9. Alternatively, in "HOLD" mode press the MEAS button to continue measuring.
c) Setting the alert function
• The meter also display three non-numerical formats of measurement: "DRY" (13), "RISK" (14)
and "WET" (15).
• When the moisture status is at "RISK" and "WET", the meter emits beeping alert noises.
• At "RISK" level, the meter will beep about once every second.
• At "WET" level, the meter will beep about three times every second.
• By default, a moisture reading of < 30 is indicated by "DRY"; 30 - 60, by "RISK"; above 60,
by "WET".
• Different materials have different tolerance of moisture. For more information, refer to
Technical Data under chapter 9. To program your threshold range:
1. When the "HOLD" icon (12) is displayed, press SET to enter the alert mode.
2. The "RISK" icon will blink. Press UP (2) or DOWN (4) to adjust the lower threshold value
for "RISK". The value can be adjusted from 0 to 50. Press SET to confirm your choice.
3. The "WET" icon will blink. Press UP (2) or DOWN (4) to adjust the lower threshold value
for "WET". The value can be adjusted from 50 to 100. Press SET to confirm your choice.
4. The LCD returns to the initial display.
5. The threshold value is permanently stored until it is changed next time.
d) Backlight
When the "HOLD" icon is displayed, press UP to switch the backlight on or off.

Maintenance and cleaning

• Clean the device as necessary with a soft damp cloth that is lint-free. Do not allow moisture
to penetrate into the housing.
• Never use aggressive detergents, rubbing alcohol or other chemical solutions, as these could
damage the casing or even impair the functioning of the product.
• Only use clean water to dampen the cloth.
Disposal
a) Product
Electronic devices are recyclable waste and must not be disposed of in the
household waste. At the end of its service life, dispose of the product according to
the relevant statutory regulations.
Remove any inserted (rechargeable) batteries and dispose of them separately from
the product.
b) (Rechargeable) batteries
You as the end user are required by law (Battery Ordinance) to return all used
batteries/rechargeable batteries. Disposing of them in the household waste is
prohibited.
Batteries that contain hazardous substances are labelled with this symbol to
indicate that they cannot be placed in household waste. The designations for the
heavy metals involved are: Cd = Cadmium, Hg = Mercury, Pb = Lead (name on
(rechargeable) batteries, e.g. below the trash icon on the left).
Used (rechargeable) batteries can be returned to collection points in your municipality, our
stores or wherever (rechargeable) batteries are sold.
You thus fulfil your statutory obligations and contribute to the protection of the environment.

Technical data

Power supply ................................ 3 x 1.5V AAA batteries
Current consumption .................... 10 mA
Accuracy ....................................... ± 0.1 unit
Measurement range ..................... 0 - 100 units
Penetration depth ......................... 20 - 40 mm
Operating temperature ................. 0 ºC to 40 ºC
Operating humidity ....................... <70 % relative humidity
Storage temperature ..................... -10 ºC to 60 ºC
Storage humidity ........................... <80 % relative humidity
Dimensions (W x H x D) ............... 63 x 235 x 28 mm
Weight .......................................... 218 g
Moisture threshold range
The following threshold range may be used as a reference.
Construction material
Gypsum
Cement
Wood
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in
electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited.
This publication represent the technical status at the time of printing.
Copyright 2017 by Conrad Electronic SE.
Moisture range (unit) Moisture status
< 30
30 - 60
> 60
< 25
25 - 50
> 50
< 50
50 - 80
> 80
*1529788_v1_0317_02_DS_m_4L_(1)
DRY
RISK
WET
DRY
RISK
WET
DRY
RISK
WET