Kett MT-200 Manuale utente

Operating Manual

Thank you for purchasing this product.

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

Wood Chip Moisture Tester

MT-200

Safety Precautions

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

result. The utmost care has been given to the safety of the product, however take care to read the precautions in

this operating manual for proper handling.

■Be sure to carefully follow all safety precautions.

Carefully read the operating manual.

■Do not use the unit if it is not functioning properly.

Immediately contact our service representative if the unit malfunctions or does not operate properly.

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

2. Specications ...............................................................................................6

3. Part names....................................................................................................7

4. Display ..........................................................................................................8

5. Description of Main Unit Keys (control panel) ..............................................9

6. Before Measuring .........................................................................................10

7. Directions......................................................................................................11

7-1. Measurement.......................................................................................11

7-2. Average display ...................................................................................14

7-3. Continuous measurement mode setting .............................................15

7-4. Moisture Content Value Correction .....................................................16

7-5. Setting the Alarm.................................................................................17

8. User Calibration Curve and Moisture Value Bias Adjustment Function .......18

9. Warnings and Errors .....................................................................................22

Contents

This unit is a wood chip moisture tester that applies electric resistance of an object to be measured. Only

putting the bar sensor into wood chips displays their moisture content (%). This moisture tester needs only

simple operation for quick measurement without selecting an operator or measurement environment.

1. Features

● Autopowerofunction

If no measurement is made or key is operated

for approximately 5 minutes, the power is

automatically shut off and avoids wasting the

batteries.

● Upperlimitsettingfunction

Setting any moisture value enables a buzzer to

sound when a measured moisture value exceeds

the set moisture value.

● Abletocompensateformoisturevalues

A moisture value can be corrected in the range

from -9.9 to +9.9%.

● Up to 13 types of user original calibration

curvesregistrable

In order to support various t ypes of wood

chips, user-originated calibration curves can be

registered under numbers from 03 to 15.

●Calibrationcurveselectablefrom2types

Regarding an electric resistance type moisture

tester, an electric resistance value of an object

to be measured is measured, and a moisture

content is converted from the resistance value.

This transformation formula is called a calibration

curve. This unit has pre-registered calibration

curves for cutting chips and crushing chips in

accordance with a dierence in shape and type

of wood chips, and accordingly, only selecting a

calibration curve number enables a user to simply

conduct measurement.

Calibration curve No. 02:

Crushing chips

Calibration curve No. 01:

Cutting chips

<Displayofmoisturetester>

There are two types, "wet base" and "dry base", of moisture contents that indicate the

hydrous state of a substance. A moisture content is generally calculated by a means called

drying method.

 Whatisthedryingmethod?

The drying method is a method by which a moisture content is measured by comparing

the weight of a sample before drying and the weight of the sample after drying at a certain

temperature. The calculation of a moisture content with use of the drying method varies

depending on what is the percentage is calculated with respect to, and the formulas are

shown as follows:

* Ingeneral,thewetbaseisusedforgrainsuchasriceandwheat,andthedrybaseisusedfortimber

andminerals.

*Beawarethatallthemoisturecontentsdisplayedonthisunitareindicatedonthewetbase.

● Wetbase

Moisture content (%) =Sampleweightbeforedrying(g)−Sampleweightafterdrying(g)×100

Sample weight before drying (g)

● Drybase

Moisture content (%) =Sampleweightbeforedrying(g)−Sampleweightafterdrying(g)×100

Sample weight after drying (g)

2.Specications

Measurement method :Electrical resistance

Applications :Cutting and crushing chips

Measurement range : 15-55% (wet base)

Measurement precision : <Cutting chips> Standard error: 5.0%, repeatability: 2.0%

<Crushing chips> Standard error: 3.0%, repeatability: 2.0%

Standard method: Constant weight method at 103°C (ISO 18134)

Display : Digital (LCD, minimum displayed digit is 0.1%)

Operating Temperature :Operatingtemperature:0to40℃(nocondensation)

Functions :Upper limit alarm setting (15 to 55% and OFF), Moisture value bias adjustment (-9.0 to

9.9%), Auto power off (automatically turned off in approx. 5 minutes), Average value

display, Continuous measurement mode, Calibration curve memory function (13 types)

Power supply : 1.5 V batteries (AA alkaline) x6

Power consumption :0.54W

Dimensions : 110 (W) x 210 (D) x 50 (H) mm

Mass :0.5kg

Accessories : Bar sensor (PU-360), Shoulder strap, 1.5 V batteries (AA alkaline) x6, Operating manual

<Mainunit> <Accessories>

Connector

Display

Control panel

Battery cover (back)

Bar sensor (PU-360)

Operating Manual1.5 V batteries (AA alkaline) x6

Shoulder strap

3.Partnames

Calibration curve number

Battery indicator

Number of measuring

Calibration curve name

Set value for the alarm

Moisture value

Bar graph

4. Display

*The numerical keys from 0 to 9 are used for number input. Some keys combine numerical input and other

functions.functions.

5.DescriptionofMainUnitKeys(controlpanel)

Key Functions

Turns the power “ON” and “OFF”.

Adjusts a moisture value bias.

Selects a sample number.

Averages measured values.

Enters a minus correction value.

Activates an alarm.

Enters a calibration curve and a value.

Conducts measurement.

Changes the current mode to the continuous

measurement mode.

(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 become low. Replace all six with

newbatteries.

(2) Plug the connector of the bar sensor into the main unit securely, and

tighten the lock ring to secure the connection.

* At this mom en t, direct the silver indentation to the front side, or

measuredvaluesmaybeaected.

(3) Prepare a sample to be measured, and allow the sample to equilibrate

to the same temperature as this unit.

*Errors may occur when there is a large difference in the temperature

between the sample and this unit . To ma ke more accurate

measurements,allowthetemperatureofasampletoequilibratetothat

of this unit.

(1) Direct the silver indentation to the front

side and securely insert the connector

(2)Tighten the lock ring

6. Before Measuring

Indice

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