Laserline 082.332A MoistureFinder Compact Moisture Meter Instruction Manual

Laserline 082.332A MoistureFinder Compact Moisture Meter

Completely read through the operating instructions, the “Warranty and Additional Information” booklet as well as the latest information under the internet link at the end of these instructions. Follow the instructions they contain. This document must be kept in a safe place and passed on together with the device.

Function / application

This material moisture measuring device operates in accordance with the capacitive measuring principle. Moisture-dependent permittivity of the material is measured between 2 conductive sensor pads on the underside of the device and the material moisture is calculated in % with internal material- dependent characteristics. The intended purpose of the device is the non- destructive assessment of moisture content in wood, cement screed and plaster.

General safety instructions

• The device must only be used in accordance with its intended purpose and within the scope of the specifications.
•  The measuring tools and accessories are not toys.

Keep out of reach of children.

• The structure of the device must not be modified in any way.
•  Do not expose the device to mechanical stress, extreme temperatures, moisture or significant vibration.
• The device must no longer be used if one or more of its functions fail or the battery charge is weak.

Dealing with electromagnetic radiation

• The measuring device complies with electromagnetic compatibility regulations and limit values in accordance with EMC-Directive 2014/30/EU.
• Local operating restrictions – for example, in hospitals, aircraft, petrol stations or in the vicinity of people with pacemakers – may apply. Electronic devices can potentially cause hazards or interference or be subject to hazards or interference.
• The measuring accuracy may be affected when working close to high voltages or high electromagnetic alternating fields.

Information on maintenance and care

Clean all components with a damp cloth and do not use cleaning agents, scouring agents and solvents. Remove the battery(ies) before storing for longer periods. Store the device in a clean and dry place.

Calibration

The meter needs to be calibrated and tested on a regular basis to ensure it produces accurate measurement results. We recommend carrying out calibration once a year.

Insert battery

Open the battery compartment on the housing‘s rear side and insert a 9V battery. Correct polarity must be observed.

ON

HOLD

Hold symbol flashes until  the value  is stable.

instructions

1. ON/OFF
2. Material setup / switchover
3. Hold current measurement
4. Selected material characteristic
5. Battery charge
6. Present measurement is retained
7. Measured value in % of relative material  moisture
8. Sensor pads
9. Wet/dry LED display 12-position LED:

Material characteristics

This instrument has 4 selectable material characteristics. Before making a measure-ment, press the MODE button to select the appropriate material.

• Screed: cement screed CT-C30-F4 DIN EN 13813
• Plaster: gypsum plaster (machine plaster) in accordance with DIN EN 13279-1/plaster thickness = 10 mm
• Soft wood: low-density woods: e.g. spruce, pine, limewood, poplar, cedar, mahogany
• Hard wood: higher-density woods: e.g. beech, oak, ash, birch

Wet/dry LED indicator

In addition to numeric measurement display in % of relative material moisture, the LED display also provides a material- dependent evaluation of moisture. The LED display bar becomes larger, from left to right, with increasing moisture content. The 12-position LED display is subdivided into 4 green (dry), 3 yellow (moist) and 5 red (wet) segments. Wet material causes an additional acoustic signal.

The classification „dry“ means that materials in a heated room have reached a balanced moisture level and are thus suitable for further processing.

Application notices

Place the device such that the sensor pads fully rest on the material to be measured and exert a pressure of about 2.5 kg onto the surface to be measured. TIP: Use scales to test the contact pressure.

Always hold and press down the measuring device in the same way (see illustration).

• Make sure that the sensor pads make good contact with the material with no air inclusions.
• The contact pressure compensates for unevenness of the surface and small dust particles.
• Measured surface should be free of dust and dirt
• Always take spot measurements while exerting a contact pressure of 2.5 kg.
• For quick checks, while exerting light pressure, you can slide the device over the surface. (Look out for nails and pointed objects! Danger of injury and damage to sensor pads!) Measure again at the highest deflection point while applying 2.5 kg contact pressure.
• Keep at least a 5 cm distance from metal objects
• Metal pipes, electric lines and reinforcing steel can falsify measurement results
• Always measure at several different spots

The operating principle of the device can only determine the material moisture measurement in % and show the moisture content on the LED display when the material matches the specified internal material characteristics.

Plaster with wallpaper: Wallpaper affects the measurement to such an extent that the displayed value is falsified. Never-theless, the reading can still be used to compare the measure-ment at this spot with the measurement at another spot. The same is true of tiles, linoleum, vinyl and wood used to cover building materials.
In some cases the measuring device can measure through these materials as long as they contain no metal. The reading should however be taken as a relative measured value.
Plaster: Plaster mode is configured for a plaster thickness of 10 mm applied on concrete, lime-sand brick, cellular concrete. Other masonry must be checked beforehand.
Wood: The measured depth in wood is 30 mm maximum but does vary somewhat with differing wood densities. Measure-ments made on thin wood boards should, if possible, be made on a stack of these boards as otherwise the measurement will be too low. Measurements made on installed wooden structures are influenced by the structural conditions and their chemical treatments (e.g. paints) with various materials. Thus such measurements should only be viewed relatively. Maximum accuracy is achieved between 6% and 30% wood moisture. In very dry wood (< 6 %) irregular moisture distribu-tion can be detected, in very wet wood (> 30 %) saturation of the wood fibres begins.
Material relative moisture reference values, in %, for use with wood:

• Outdoor usage: 12% … 19%
• Use in unheated rooms: 12% … 16%
• In heated rooms (12°C … 21°C): 9% … 13%
• In heated rooms ( > 21°C): 6% … 10%

Example:
100% material moisture for 1 kg of wet wood = 500 g water.

Functional and operational safety is only warranted when the instrument is operated within the specified climatic conditions and is only used for those purposes for which it is designed. The assessment of measure-ment results and actions taken as a consequence lie in the user‘s scope of responsibility, depending on the given type of work.

Technical data

Technical data

Variable| Moisture content of material (capacitive)
Mode| Wood (2 groups)

Building materials (2 materials)

Measuring range wood| Softwood 6.7% … 51.4%

Hardwood: 3.8% … 31.6%

Accuracy (absolute) wood| ± 2%
Resolution wood| 0,1%
Measuring range building materials| Cement screed: 0% … 5%

Plaster: 0% … 23,5%

Accuracy (absolute) building materials| ± 0,2%
Resolution building materials| 0,1%
Power supply| 1 x 9V 6LR61 (9-volt block)
Operating time| approx. 35 h
Automatic shut-down| after 3 minutes

Operating conditions

| 0°C … 40°C, max. humidity 85% rH, no condensation, max. working altitude 2000 m above sea level
Storage conditions| -10°C … 60°C, max. humidity 85% rH, no condensation
Dimensions (W x H x D)| 81 x 154 x 36 mm
Weight| 226 g (incl. battery)

EU directives and disposal

for the free movement of goods within the EU. This product is an electric device and must be collected separately for disposal according to the European Directive on waste electrical and electronic equipment. Further safety and supplementary notices at: http://laserliner.com/info?an=ADM

SERVICE
Umarex GmbH & Co. KG – Laserliner – Möhnestraße 149, 59755 Arnsberg, Germany
Tel.: +49 2932 638-300,
Fax: +49 2932 638-333
info@laserliner.com 

Umarex GmbH & Co. KG Donnerfeld 2
59757 Arnsberg, Germany Tel.: +49 2932 638-300, Fax: -333 www.laserliner.com

References

• Info - Laserliner
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