Kett HM-540 Manuel utilisateur
Wood Moisture Tester
HM-540
Operating Manual
Thank you for purchasing this product.
Please read the operating manual carefully and use this product properly.
Safety Precautions
If the safety precautions for the wood moisture tester are not observed damage to property may
result. While the safety of the product has been given considerable attention, read the precau-
tions in the operating manual and use the instrument properly.
• Observe the safety precautions.
Read the precautions noted in the operating manual.
• Do not use if broken.
Immediately contact our service representative if the unit malfunctions or does not
operate properly.
• 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. These
symbols have the following meanings.
Note Items which the user should be aware of in order to use the unit safely.
CONTENTS
1. Features of Wood Moisture Tester HM-540....................................... 4
2.Specications ................................................................................... 5
3. Part Names........................................................................................ 6
4. Description of Display........................................................................ 8
5. Battery Installation............................................................................. 9
6. Measurement Method...................................................................... 10
7. Various Settings............................................................................... 12
8. Extension functions [Other settings]................................................ 20
9. Notes Regarding Measurement....................................................... 29
4
This unit is a handy high-frequency moisture tester with integrated main unit and
sensorsection.Specifyingthethicknessofthewoodandthespecicgravityallowsthe
moisture of various kinds of woods to be measured. The moisture can be measured just
by pushing this device against an object to be measured, and therefore, the surface of
the wood is not spoiled. You can utilize this device as a device for moisture management
in the industry of handling wood including timber drying factories, antiseptic treatment
factories, lumber mills, plywood mills, wooden furniture factories, housing manufacturers,
and construction rms. This device has been authorized as a good moisture content
meter (authorization number: 1-21-001) in "Authorization as Moisture Content Meter
Used for Conifer Timber" by the Japan Housing and Wood Technology Center.
1. Features of Wood Moisture Tester HM-540
●Measuring principle
The more wood contains moisture, the
larger the high frequency capacity becomes.
Measuring af ter obtaining the relationship
between the moisture and high frequency
capacity allows the moisture to be obtained.
This device displays a moisture value by
applying this principle.
5
Measurement method : High frequency capacitance (20MHz)
Application : Wood
Measurement range : 2-150%(specicgravityandtreespeciesdependent)
Measurement precision :
Standard error: 0.5% or less (our standard sample, cedar/cypress: 20% or less)
Drying method: JIS Z 2101:2009
Data memory : 999 points
Compensation function : Thickness : 10-40 mm
Specicgravity:0.1to1.25(upto3settingvaluesstorable)
Moisture:slope(0-2.50),offset(−9.9-9.9)
Temperature:Automatic(10-40˚C),Manual(−10-70˚C)
Other functions : Statistics, Auto power off, Auto hold, Upper limit alarm, etc.
Display : 128 × 64 dot matrix LCD
Power supply : 9V alkaline battery (006P) ×1
Power consumption :350 mW
Dimensions and weight : 72 (W) ×146 (D) ×118 (H) mm, approx. 0.39 kg
Accessories :9V alkaline battery (006P) ×1, carrying pouch, specific gravity table,
operating manual
Options : Data Logger Software HDL-02 (USB)
2. Specications
6
3. Part Names
<Main unit>
key
Used to determine settings
or item selection.
［▲
］［ ▼ ］ keys
Used to move to differing
items on the sc reen or
used to change the number
values on the screen.
USB connector
ON
OFF button
Turns the power on and off.
Battery compartment
Moisture sensor (back side)
Buzzer
HOLD button
Used to hold or cancel the measured
value on the screen.
Display
Strap
7
<Accessories>
<Options>
Specicgravitytable Operating ManualBatteries (9V)
9V alkaline battery (006P) ×1
Data Logger
Software HDL-02
Carrying pouch
8
4. Description of Display
Item No.
Items to be displayed
①Thisindicatorisdisplayedwhentheremainingbatterycapacityisinsufcient.
［］
Low battery,
［ ］
Battery replacement
②The data number is displayed when the data memory is set.
③An icon ( ) is displayed when the measured value is held.
④
Theselectedobjecttobemeasuredisdisplayed.WhenSGisselected,thevalueofthespecicgravityisdisplayed.
⑤The date [Year/ month/ day] and time are displayed.
⑥The icon () is displayed when the correction setting of the measured value is conducted.
⑦The measured moisture value (%) is displayed. When the value exceeds the measurable
range, "Over Range" is displayed.
⑧The thickness setting value of the object to be measured is displayed.
⑦
④
①
②
③
⑤
⑥
⑧
9
The power supply of this unit uses one 9V (006P alkaline) battery.
Pull your thumb in the direction
of the arrow to remove the
battery compartment lid.
Put in the batter y properly
with attention to the positive (+)
andnegative(−)directions.
5. Battery Installation
10
6. Measurement Mode
Step
Operation Display Operation description
1
Start measurement
State of directing the
device to air until the
measurement screen
is displayed
Example) Cedar
measurement screen
Press the ON
OFF button with the moisture sensor
facing the air.
* The device is regulated at power-on. For accurate
me asurement, b e sur e to turn on th e power
with the moisture sensor facing the air. Keep
the moistur e se nsor facing the air until the
measurement screen is displayed.
The measurement screen is displayed about 3
seconds after the buzzer sounds.
* If setting is changed, the display section may
differ.
ON
OFF button
Moisture sensor
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