Kett MT-730 Manuel utilisateur

Operating Manual

Thank you for purchasing this product.

Please read the operating manual carefully and use this product properly.

Wood Moisture Tester

MT-730

Safety Precautions

If the safety precautions for the wood moisture tester are not observed, injuries or damage to property may

result. While the safety of the product has been given considerable attention, please read the precautions in

the operating manual and use the instrument properly.

• Please observe the safety precautions.

Please read the precautions noted in the operating manual.

• Do not use if broken.

If the tester breaks or malfunctions, please consult our repair service.

• Meaning of warning symbols.

In order to prevent damage resulting from erroneously operating the equipment, the following symbols are

indicated in the operating manual and on the product. The following are their meanings.

Note Items which the user should be aware of in order to use the unit safely.

1. Features.............................................................................. 4

2.Specications..................................................................... 5

3. Part Names ........................................................................ 6

4. Display................................................................................ 7

5. Description of Keypad........................................................ 8

6. Directions ........................................................................... 9

6-1. Before Measurement ................................................. 9

6-2. Measurement Method................................................ 10

6-3. Setting the Measurement Mode ................................ 13

6-4. Displaying the Average Value..................................... 14

6-5. How to make Bias Adjustment................................... 15

6-6. Setting the Alarm ....................................................... 16

6-7. Spare needle, Conductive rubber Replacement ....... 17

7. Error Display....................................................................... 18

8. Wood Group Number Table ............................................... 20

CONTENTS

• Built-incalibrationsforhardwoodandsoftwood

In addition to the calibrations for the 16 wood groups up to now, calibrations corresponding

to the overall hardwood and softwood can be selected with the single push of a button.

• Automatictemperaturecompensation

Compensation for the temperature of the wood is automatically performed by means of a

built-in temperature sensor.

• Autopowero

 Wheninactive,theunitwillautomaticallyturnitselfoafterapproximately5minutestoavoid

draining the battery.

• Alarmsetting

Set any moisture value, and an alarm will sound if the measured moisture value is higher than

the set moisture value.

• Biasadjustment

The moisture value can be corrected corresponding to each calibration curve in the range from

–9.9% to +9.9%.

1. Features

*1Calibrationswerepreparedusingthemostrecentwoodandmeasurementtechniques.Dierentvaluesaredisplayedforthecalibrationsofthe16woodgroupclassications.

*2Uses the same calibrations as our “TURKU, MT-8S, MT-700 (production of the preceding 3 products discontinued) ” wood moisture testers. Refer to p. 20 “8. Wood

Group Number Table”.

*3Range when measured at 20°C. For temperatures below 20°C, the measurable lower limit value increases by 0.1% per 1°C.

2. Specications

Measurement Principle :Electrical resistance

Applications :Veneer/wood

Calibrations :For hardwood and softwood use*1(Reference method: ISO 13061-1)

16woodgroupclassications*2

Measurement Range*3: 6 to 40% (hardwood), 7 to 40% (softwood)

4 to 40% (when wood groups 1-16 are selected, varies with group type*2)

Measurement Precision : Below 20%: ±0.5%,

20% and higher: ±2.0% (precision with respect to base resistance)

Display :Digital (LCD)

Resolution :0.1%

Operating Temperature Range

:0to40˚C

Functions : Automatic temperature compensation, average value display, Upper limit alarm setting (10 to

39%andO),Autopowero(automaticallyturnsoafterapproximately5minutes),Mois-

ture value bias adjustment (–9.9 to +9.9%)

Power Supply, Power Consumption

:1.5Vbatteries(AAalkaline)(6),approximately0.45W

Dimensions and Weight :110mm(W)x210mm(D)x50mm(H),0.5kg

Accessories

Needle probe, spare needle (10), conductive rubber (2), wrench, shoulder strap, 1.5 V battery

(AA alkaline) (6), carrying case, operating manual, wood group number table (Japanese and

English) (1 each)

Carrying case

Shoulder strap

Wood group

number table

1.5 V battery (AA) (6)

Operating manual

Needle probe Conductive rubber (2)Spare needle (10)

Wrench

Connector

Display

Control Panel

Needle

Cap

Battery cover (back)

Needle probe

3. Part Names

Description of display

4. Display

Item No. Name of display area Description

1Wood group number Displays set wood group number.

2Battery indicator Comes on when battery is depleted.

3Measuring times Displays the number of times measured.

4“HRD” or “SFT” Displays the wood group selected.

5Alarm set-point value Displays the set-point value for the alarm for the upper moisture limit that

was set.

6Moisture value Displays the measured moisture value (%).

7Bar graph Displays the measured moisture value by means of a bar graph.

Displays up to 40% in 2% increments.

3

5. Description of Keypad

Key Function

PowerOnandO

Bias correction

Selection of wood group number

Average value and number input

Setting of upper and lower alarm limit

Making measurement

Continuous measurement

For inputting numerical values (This unit has no print function.)

Selection of hard wood

Selection of soft wood

Entering a minus input

For inputting numerical values

6-1. Before Measurement

1.Theunitispoweredbysix1.5Vbatteries(AA,alkaline).Remove

the rear battery cover, place the batteries into the compartment

taking care to correctly orient the positive ( ) and negative ( )

terminals. Then attach the battery cover.

• isdisplayedwhenthebatteriesaredepleted.Replaceallsixwith

new batteries.

2. Plug the needle probe connector into the socket on the main

unit, and fasten and secure the lock ring.

3. Remove the cap on the needle probe.

4. Prepare the wood sample to be measured. Allow the sample to

equilibrate to the same temperature as the main unit.

• Errorsmay occur when thereis a largedierence in thetemperature

of the wood and the temperature of the unit. To make more accurate

measurements, allow the temperature of the wood to equilibrate with

the temperature of the unit.

2Tighten the lock ring

1Securely plug the

connector in

6. Directions

6-2.Measurement Method

1. Press the key to turn on the power. All elements of the

LCDwillbedisplayedforapproximatelythreeseconds.

Subsequently, the “Wood group or wood group number”,

“TIMES”, and “%” will be displayed.

• The display will indicate “HRD” for HARD (hardwood) or “SFT” for

SOFT (softwood).

• Ifthedisplayshowssomethingotherthanthatdescribedabove,there

may be a problem with the unit. Refer to p. 18 “7. Error Display”.

2. Select the wood group object to be measured.

A. When selecting hardwood / softwood:

Press the key to select hardwood.

Press the key to select softwood.

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