Kett PM-450 Manuel utilisateur

Grain Moisture Tester PM-450

(version 4501)

Operating Manual

CONTENTS

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

2.Specications ....................................................................................... 5

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

4.Display/Keyboard ................................................................................. 7

5.PreparationandConguration ............................................................ 8

 5-1.BatteryInstallation ........................................................................ 8

 5-2.Productnumberviewing .............................................................. 8

 5-3.Productnumberselection............................................................ 9

6.SampleExtractionandMeasurement................................................. 10

 6-1.Manualhopper............................................................................... 10

 6-2.Howtoextractasample............................................................... 10

 6-3.Measurement ................................................................................ 11

7.Otherfunctions ..................................................................................... 14

 7-1.Displayingtheaveragemoisturevalue ........................................ 14

 7-2.Autopoweroff ............................................................................... 14

 7-3.Batterylevelicon........................................................................... 14

8.ErrorDisplay ......................................................................................... 15

9.Instructionsforproperuse .................................................................. 17

10.ProductList.......................................................................................... 18

This instrument can measure the moisture content of many kinds

of grain, seeds, and other products. Using a fixed sample volume

allows the weight, temperature, and capacitance (dielectric) of the

sample to be measured. After processing this information with

the use of the embedded microprocessor, the “Moisture Value” is

displayed. Refer to the “Product List” for measurable grain versions.

Because the calibration curves of products on the “Product List”

have been already stored, the measurement of a sample on the list

can be instantly performed by simply pressing the product number.

1. Features

[Note]

The entered product versions may be different even among the same

PM-450 models. The display may be different between examples in the

Operating Manual and the real ones on the actual tester, but the usage

is the same.

2. Specifications

Measuring principle :Capacitance(Dielectric) (50MHz)

Applications :Grain, seeds, small objects

Measurement range : 1 - 40% (sample dependent)

Sample volume :240 mL

Operating temperature range

: 0 - 40 °C

Precision :<Moisture> Standard error of 0.5% or less versus drying method (all samples with

moisture content of less than 20%)

Correction function :<Mass> By integrated weighing scale

<Temperature> By thermistor

Other functions : Average, auto power off

Display :Digital (LCD)

Power supply : Batteries (1.5V "R6" or "AA" size, x4)

Power consumption :240 mW

Dimensions and weight : 125 (W) x 205 (D) x 215 (H) mm, 1.3 kg

Accessories : Funnel, Manual hopper, Brush, Batteries (1.5V “R6” or “AA” size, x4), Operating manual

3. Part Names

Measuring section

(sample inlet)

Battery cover

Keyboard

Display

Inner cylinder

Funnel Manual hopper

(Sample cup)

Operating manual

Brush Batteries

(1.5V “R6” or “AA” size, x4)

4. Display / Keyboard

MEA. key

Measurement

POWER key

Power On/Off

Moisture value

Battery level icon

Product name

Product number

Sample in/out icon

Number of

measuring

SELECT key

Selection of products

AVG. key

Average value

5. Preparation and Configuration

• This instrument is equipped with an integrated weighing scale. For optimal results, this instrument should

be placed on a horizontal surface and used in locations where the wind is not strong and the instrument isn’t

subject to vibration.

• Donothittheinstrumentduringoperationanddonotleavetheinstrumentupsidedown.

• Althoughthisinstrumentperformsautomatictemperaturecorrection,foroptimalmeasurement,leavethis

instrument at ambient temperature for 2 hours or more before use.

• Thetemperaturesensorembeddedinthemainunitmeasurestheambienttemperaturearoundthemeasuring

unit and automatically performs temperature correction. If the temperature difference between the main unit

and a sample is ±10 °C or more, a measurement error may be generated and, therefore, the displayed measured

value blinks (warning indication) (see “8. Error Display” on page 15 and 16).

5-1. Battery Installation

Theunit is powered by four 1.5 V batteries (A A,

manganese). Remove the bottom battery cover,

place the batteries into the compartment, ensuring

to correctly orient the positive (+) and negative (–)

terminals. Then replace the battery cover.

5-2.Product number viewing

(1) Press the key.

(A buzzer sounds for 2 seconds, and all contents are

displayed)

(2) The number of the product that was measured during

the last test is displayed. In the case of the drawing

(right) the product number is “01 WHEA”.

5-3.Product number selection

Select a product number to be measured from the

"Product List".

(1) Every time the key is pressed, the product

number is displayed in the following order:

"01→02→03→04→· · ·".

(2) For example, to change to “03 CORN” when “01

WHEA” is displayed.

(3) Press the key twice to adjust the product number

to "03".

(4) Now, “03 CORN” is selected.

[Note] The product number is memorized while

the instrument is off, and therefore, the

last selected number is displayed when the

instrument is turned on the next time.

6-1. Manual hopper

6. Sample Extraction and Measurement

Use of Manual hopper

6-2.How to extract a sample

(1) Mount the funnel on the manual hopper, and load

a sample into the funnel to one-third of the funnel

depth.

(2) Remove the funnel to eliminate surplus sample and to

level off the sample.

[Note] Never extract a sample directly with the manual

hopper.

Funnel Manual hopper

Funnel

Manual hopper

Ce manuel convient aux modèles suivants

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