DampFinder Home - Measuring equipment Laserliner - Free user manual and instructions

Product type	Material moisture meter (resistive)
Brand	Laserliner
Model	DampFinder Home
Dimensions (L x H x D)	57 x 120 x 44 mm
Weight (incl. battery)	146 g
Power supply	1 x 9V battery (6LR61)
Measuring principle	Resistive measurement via integrated electrodes
Measuring modes	2 wood groups (A, B); 3 building materials (cement screed, plaster, aerated concrete); auto test mode
Measuring ranges (wood)	5 % … 99 %
Measuring ranges (cement screed)	1 % … 4.5 %
Measuring ranges (plaster)	0.1 % … 38.2 %
Measuring ranges (aerated concrete)	2.2 % … 99 %
Accuracy (wood)	± 1 % (5 % … 30 %); ± 2 % (<5 % or >30 %)
Accuracy (building materials)	± 0.15 % (0 % … 10 %); ± 1 % (>10 %)
Operating conditions	0 °C … 40 °C; RH max 85 % (non-condensing); max altitude 2,000 m
Storage conditions	-10 °C … 50 °C; RH max 85 %
Display	LCD screen with symbols (battery level, auto test, wood mode, construction mode, Hold, % unit, measured value)
Main functions	Auto-Hold (hold 5 s), auto power off (3 min), mode switching, auto test, recommended annual calibration
Accessories supplied	Protective cap
Safety	Do not use on electrical/water conduits; do not force electrodes; keep out of reach of children; do not modify the device
Maintenance and cleaning	Clean with a slightly damp cloth; do not use solvents; remove battery for prolonged storage; store in a dry and clean place
Warranty	Consult the complete user manual on the Laserliner website

Frequently Asked Questions - DampFinder Home Laserliner

How to use the DampFinder Home?

Turn on the device with the on/off switch. Select the measurement mode (wood or building materials) with the MODE button. Insert the electrodes into the material to be measured (without forcing) and read the value on the screen. After removal, the value remains displayed for 5 seconds (Auto-Hold function).

What do the wood measurement modes A and B mean?

Woods are divided into two groups (A and B) according to their density and response to resistive measurement. The table in the manual indicates which group corresponds to each species. Select the appropriate group for accurate measurement.

How to change the battery?

Open the battery compartment on the back of the device. Replace the used battery with a 9V battery (6LR61) respecting the indicated polarity. Close the compartment.

What is the measurement accuracy for wood?

For wood, accuracy is ±1% in the range 5% to 30% humidity, and ±2% outside this range (less than 5% or more than 30%).

Can measurements be taken on metallic surfaces or near electrical cables?

No. Before measuring, ensure that no supply lines (electrical cables, water pipes) are present at the measurement location and that there is no metallic background, as this would distort the results.

How to interpret the displayed humidity values?

The displayed value corresponds to the moisture content of the material in % relative to dry mass. For example, 100% means the water mass equals the dry mass. For correct interpretation, take comparative measurements at several points and compare with a dry area of the same material.

What to do if the device does not turn on?

First check the battery: replace it if necessary. If the problem persists, perform an auto test by holding the electrodes in the air. If the screen displays 'T 0.K', the test is successful. Otherwise, contact customer service.

How to clean and maintain the device?

Clean the device with a slightly damp cloth. Do not use cleaning products, solvents, or abrasives. For prolonged storage, remove the battery and store the device in a dry and clean place.

Where to find the complete manual and updates?

The complete manual as well as safety and warranty information are available on the laserliner.com website at http://laserliner.com/info?an=dafiho. You can also download the PDF manual from our portal.

What are the recommended storage conditions?

Store the device at a temperature between -10°C and +50°C and a maximum relative humidity of 85% (non-condensing). Avoid exposure to extreme temperatures, excessive humidity, or vibrations.

USER MANUAL DampFinder Home Laserliner

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Laserliner

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Laserliner

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Materialkennlinien

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 instrument detects and evaluates the material moisture content of wood and building materials by way of electric resistance measurement. The displayed value is material moisture in % with respect to dry mass. Example: 100% material moisture for 1 kg of wet wood = 500 g water.

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.
• Do not use the measuring probe with an external voltage.
• Please ensure compliance with the safety regulations set out by local and national authorities with regard to the correct and proper use of the device.

Safety instructions

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.

a Battery charge
b Self-test function
c Measuring mode Wood
d Measuring mode Building Materials
e Hold function
f Unit of measurement %
g Measured value display

DampFinder Home

1 Protective cap
2 Measuring electrodes
3 LC display
4 On/Off switch
5 Measuring mode selection
6 Battery compartment (rear)

1 Inserting battery

Open the battery compartment and insert battery according to the symbols. Be sure to pay attention to polarity.

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The device switches itself off automatically after 3 minutes to save battery power. If the device has switched itself off, use the On/Off switch again to switch it on again.

Laserliner

4 To change measuring mode

— Device on

MODE

1 sec 1 sec 1 sec 1 sec 1 sec 1 sec

The device starts with the measuring mode last selected.

5 Self-test function

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Measurement procedure notice

Be sure neither supply lines (electric lines, water pipes, etc) nor a metal subsurface is present at the location to be measured. Insert the electrodes as far into the material as possible but never use excessive or sudden impact force as this could damage the unit. Always pull the unit out of the material with left/right twisting motion. Perform several comparative measurements at different locations to minimise measurement error. The sharply pointed electrodes present an injury hazard. Always put the safety cap on the unit when it is not in use or being transported.

6 Wood

The location to be measured should be untreated, free of knots, dirt and resin. Measurements should not be made on the end faces of wood because these areas dry particularly quickly such that they produce incorrect measurement results.

Perform multiple comparative measurements. Wait until the

% symbol stops blinking and remains constantly lighted. Only then are measurement values stable.

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7 Mineral building materials

Be aware that walls (or surfaces) with differing material structures, or even variations in material composition, can cause measurement results to be falsified. Perform multiple comparative measurements. Wait until the % symbol stops blinking and remains constantly lighted. Only then are measurement values stable.

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Material characteristics

The material characteristics available for selection in the measuring device are listed in the tables below. The different types of wood are divided into Groups A and B. Please set the measuring device for the respective group in which the type of wood to be measured is found (see Step 4). A similar setting must also be made for measurements performed on building materials (see Step 4). Building materials are classified from 1 to 3.

8 Wood tables

Wood group A
Abachi	Cypress Pine, Mexican	Niové
Abura	Ebony, African	Oak, Red
Afzelia	Gum, Manna	Oak, White American
Albizia falcatara	Hickory, Mockernut	Okoumé
Ash, American	Hickory Pecan	Pau amarello
Ash, Japanese	Hickory, Pignut	Pear
Ash, White American	Idigbo	Pine, Brazilian
Beech, American	Ilomba	Rosewood, Brazilian
Beech, European	Ipe	Rosewood, Indian
Beech, Red (Sapwood)	Iroko	Teak
Canarium, Grey	Lime, American	Willow
Canarium, (PG)	Lime, European	Willow, Black
Cedar, common	Mockernut
Cypress, Alaska	Niangon

Wood group B

Agba	Cembra Pine	Mahogany, Cherry
Alder, Black	Cherry, European	Maple Black
Alder, Common	Chestnut, Horse	Maple, Great
Alder, Red	Chestnut, Sweet	Maple Red
Alerce	Cypress, Italian	Oak, European
Andiroba	Douka	Pine, Common
Ash, Common	Elm	Pine, Maritime
Ash, Silver (Southern)	Emien	Pine, Ponderosa
Aspen	Fir, Douglas	Pine, Western Yellow
Balsa	Fréne	Plum, European
Basralocus / Angelique	Hornbeam, common	Poplar, all
Bean, Black	Izombé	Poplar, White
Birch	Jacareuba	Purpleheart
Birch, European White	Jarrah	Sandalwood, Red
Birch, Yellow	Kapok	Scots Pine
Bloodwood, Red	Karri	Spruce, European
Box, Black	Kosipo	Tola branca
Canarium (SB)	Larch, European	Tree heath
Cedar, Incense	Limba	Walnut, European
Cedar, Pencil	Logwood
Cedar, Western red	Mahogany, African

9 Table of building materials

Integrated building materials / measuring range

1 Cement screed without additive / 1.0 ... 4.5%

2 Gypsum plaster / 0.1 ... 38.2%

3 Cellular concrete (Hebel) / 2,2 ... 99%

Tip: Moisture measuring devices that operate in accordance with the resistance method can be used to compare measuring points – in this case the numerical value only serves as an index value. Take a sample measurement in a dry area of the same material, note down the value and compare against values of the areas to be measured. Higher values indicate more moisture. In this way it is possible to detect moisture paths in the material irrespective of the material or material combinations (e.g. plaster with wallpaper).

10 Auto-Hold function

The last measurement value will continue to display for about 5 seconds after removing the device from the measured material. The Hold symbol flashes and the measured value last determined is displayed for this period of time. The device is ready for a new measurement as soon as the flashing stops and the measured value is reset to 0.

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.

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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 measurement results and actions taken as a consequence lie in the user's scope of responsibility, depending on the given type of work.

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.

Technical data

Measurement principle	Resistive material moisture measurement by way of integrated electrodes
Modes	2 wood groups3 building materialsTest mode
Materials / Measurement range	Cement screed: 1% ... 4,5%Gypsum plaster: 0.1% ... 38.2%Cellular concrete: 2.2% ... 99%Wood: 5% ... 99%
Accuracy (absolute)	Wood: ±1% (5% ... 30%)±2% (<5% and >30%)Building ±0.15% (0% ... 10%)materials: ±1% (>10%)
Operating conditions	0°C...40°C, Max. humidity 85% rH,no condensation, Max. working altitude 2000 m above sea level
Storage conditions -10°C	...50°C, Max. humidity 85% rH
Power supply	1 x 6LR61, 9V
Dimensions (W x H x D) 57	x 120 x 44 mm
Weight (incl. battery) 146	g

Subject to technical changes without notice. 19W09

EU directives and disposal

This device complies with all necessary standards 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=dafiho

Laserliner

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7 Minerale bouwmaterialen

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Materialekarakteristika

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Mittausohjeita

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Materiaalikäyrät

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Materialkurvor

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Materialenes karakteristika

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SERVICE

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