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Moisture Encounter Plus

User Guide

Table of Contents

Introduction ............................................................................3

Instrument Features ..............................................................4

Operating Instructions ..........................................................5

Working with your Moisture Encounter Plus......................6

Scale 1 ................................................................................6

Testing wood and wood products ................................6

Relative humidity and moisture content......................8

Wood Flooring ................................................................8

Notes on Specific Gravity (SG) ....................................9

How to use the Wood SG Tables ..................................9

Wood S.G. Table, 5% to 17% meter reading ..............10

Wood S.G. Table, 18% to 30% meter reading ............11

Scale 2 ..............................................................................12

Testing built-up-roofing ..............................................12

Testing Drywall. ............................................................12

Testing on ceramic tiles and other wall and floor

coverings.......................................................................13

Scale 3 ..............................................................................13

Testing plaster or brick................................................13

Limitations............................................................................14

Warranty................................................................................14

Warranty Claims ..................................................................15

Product Development..........................................................15

Wood Timber Drywall Tiling Floor Covering

Roofing

Block Brick Coverings Plaster

®

MEP0306

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Moisture Encounter Plus

User Guide

TRAMEX MOISTURE/HUMIDITY INSTRUMENTS

SURVEY ENCOUNTER: The intelligent moisture meter.

“State of the art” non-destructive moisture meter for measurement and data log- ging of moisture in building materials.

MOISTURE ENCOUNTER PLUS

General purpose non-destructive moisture meter employing advanced analog

and digital technology.

CONCRETE ENCOUNTER CME 4

Non-destructive moisture meter for concrete floors.

CRH FLOORING

Non-destructive testing and data logging of moisture content and relative humid- ity measurements in concrete (to ASTM F 2170-02, ASTM F 2420-05 and BS

5325:2001 & 8203:2001), gypsum screeds and sub-floors.

RHR FLOORING HYGROMETER KIT

Complete kit for relative humidity testing of flooring by either the in situ probe

method (to ASTM F 2170-02 and BS 5325:2001 & 8203:2001) or the RH hood

method (ASTM F 2420-05).

FLOOR INSPECTION KIT

Complete kit for moisture testing concrete, hardwood flooring, sub-flooring and

environmental monitoring.

MRH

Digital Moisture and Humidity Meter with 4 scales for wood, roofing, masonry

and drywall. Humidity probe also available. Suitable for humidity testing of

flooring by either the in situ probe method (to ASTM F 2170-02 and BS

5325:2001 & 8203:2001) or the RH hood method (ASTM F 2420-05).

PROFESSIONAL MOISTURE METER

Digital resistance meter with probes, tests deep into wood.

COMPACT MOISTURE METER

Economical pin-type resistance meter for wood.

SKIPPER PLUS

Checks wooden boats for decay and finds osmosis in GRP.

LEAK SEEKER

Leak tracing in flat and built-up roofing.

DEC SCANNER

Mobile non-destructive surveying of flat roofs.

WET WALL DETECTOR

Non-destructive moisture evaluation and tracing in EIFS.

RWS ROOF AND WALL SCANNER.

For moisture scanning and leak tracing on roofing, EIFS and the building enve- lope.

MOISTURE & HUMIDITY INSPECTION KITS ARE AVAILABLE FOR

THE FOLLOWING INDUSTRIES:

Floor inspection / EIFS wall inspection / Roof inspection / Indoor Air Quality /

Water damage restoration.

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Moisture Encounter Plus

User Guide

Introduction

Your Moisture Encounter Plus is a patented instrument, which

enables non-invasive moisture measurement and detection in a

wide range of building materials.

The instrument operates on the principle that the electrical

impedance of a material varies in proportion to its moisture con- tent.

To measure/detect moisture, the two co-planar conductive rubber

electrodes mounted on the base of the instrument case are

lightly pressed onto the wood or material sample. The instrument

measures the electrical impedance of the sample by creating a

low frequency alternating electric field between the electrodes.

This field penetrates the material under test to a depth of

approximately 30 mm (11/4 inches). The very small alternating

current flowing through the field is inversely proportional to the

impedance of the material. The instrument detects this current,

determines its amplitude and, after processing, drives the

pointer of the moving coil meter to the computed moisture value.

As there is a wide variation in the nominal electrical impedance

of different material types, the instrument is provided with three

selectable scales which are optimized for testing (1) Wood,

Timber (2) Drywall, Roofing and (3) Plaster, Brick. By selection

of an appropriate scale, the instrument can also be used for the

detection and location of elevated moisture in or behind a range

of covering materials such as wall, floor, and ceiling tiles, siding,

carpet, ceramic tiles and laminated floor coverings.

Transmit

Electrode

Moisture Encounter Plus

Alternating

Electric Field

Material sample

under test

Receive

Electrode

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Moisture Encounter Plus

User Guide

Instrument Features

Your Moisture Encounter Plus employs advanced analogue and

digital technology to enable the incorporation of many new fea- tures, which greatly extend the capability of the instrument.

• Three simple pushbutton controls, ON, SCALE and HOLD.

• Non-destructive moisture readings taken in wood from 5% to

30% are displayed on a moving coil meter with linear scale.

• Audio signal sounds when meter indicates high reading.

• Comparative readings between zero and 100 can be taken in

or through drywall, ceramic tile, carpet, floor coverings,

roofing, plaster, and other materials such as brick and cement

block. Meter scale is also color coded to assist in identifying

areas of wet and dry.

• Automatic supply timeout (2 minutes) conserves battery life.

• Supply timeout is automatically extended if a change in meter

reading is detected or if any button is pressed.

• 10 second bleep warning on instrument sounder prior to end

of supply timeout period.

• Last used scale is memorized at supply timeout and

automatically selected next time ON button is pressed.

• Three LEDs (light emitting diodes) show selected scale,

indicate if HOLD selected and provide warning of battery

nearing end of useful life.

• HOLD button freezes moving coil meter, which facilitates

readings taken out-of-sight.

• If HOLD was selected prior to supply timeout, the frozen

meter reading is digitally memorized and restored next time

ON is selected.

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Moisture Encounter Plus

User Guide

Operating Instructions

The instrument face with brief notes on the push button controls

and LED indicators is shown below.

1. Press the ON button to power up. The LED for the last used

scale will light. [Note – If the battery voltage is getting low,

the three LEDs will flash sequentially for a short period. The

instrument will continue to operate for some time but it is

recommended that the PP3 (9 volt) battery be changed as

soon as convenient.]

2. To change scale, press/release the SCALE button until the

LED opposite the required scale lights.

3. Hold your Moisture Encounter Plus directly on the mate- rial being tested ensuring both conductive rubber elec- trodes are fully in contact with the surface.

4. For wood or wood products read the moisture content from

the upper line (Wood) of the meter dial which is marked from

5% to 30%. Audio signal will sound when meter indicates

high reading.

5. To turn audio signal on or off, press ON button twice in quick

succession.

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Moisture Encounter Plus

User Guide

6. For drywall, felt roofing, plaster or brick comparative

(Relative) readings are taken from the lower line on the

meter dial, which is marked from 0 to 100.

7. The instrument will automatically power-off after two

minutes if no button is pressed or if no change in meter

reading is detected. If a button is pressed or the meter

reading changes, the power-off will be extended for a further

two minutes.

8. To freeze readings press the HOLD button once. While on

Hold, the LED for the selected scale will flash slowly. This

facility is extremely useful if readings are being taken in

areas where it is difficult to see the instrument dial. To

remove freeze, press the HOLD button again.

Working with your Moisture Encounter Plus

Scale 1

Testing wood and wood products

a) When testing wood, power-on, select Scale 1 and press the

rubber electrodes directly to the surface. Read the moisture

percentage from the top line of the analog dial where

calibration is marked from 5% to 30%. If switched on, the

audio signal will sound when readings are above 18%.

b) If possible, always take readings with the length of the

instrument parallel to the direction of the wood grain.

c) Calibration tests were carried out by Forbairt, the Irish

Institute for Industrial Research and Standards, and are based

on Douglas fir, which has a published specific gravity (SG)

of 0.50. For wood having an SG other than 0.50 see “Notes

on Specific Gravity” and “How to use the Wood SG

Adjustment Tables” on page 9.

d) Acceptable levels of moisture content depend on climatic

conditions and we advise you check the levels acceptable in

your area. The table on page 8 shows the approximate rela- tionship between the ambient relative humidity and equilib- rium moisture content in woods.

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