Kett HK-300-1 User manual

Operating Manual
Thank you for purchasing this product.
Please read the operating manual carefully and use this product properly.
Paper Moisture Tester
HK-300-1/300-2/300-3

For safety precautions
Improper use of the Paper Moisture Tester in violation of the following safety notes may result in death, injury or
damage to property due to re, etc. While the safety of the product has been given considerable attention, read the
precautions in the operating manual and use the instrument properly.
■Observe the safety precautions.
Read the precautions noted in the operating manual.
The safety measure of the unit may be impaired if instructions are ignored during use.
■Do not use if broken.
If you suspect a problem or malfunction in the unit, make sure to contact the vendor.
■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............................................................................................... 7
2. Specications...................................................................................... 8
3. Part Names.......................................................................................... 10
4. Display................................................................................................. 11
5. Description of Keypad......................................................................... 12
6. Directions ............................................................................................ 13
6-1. Before Measurement................................................................... 13
6-2. Measurement Method................................................................. 14
6-3. Setting the Measurement Mode ................................................. 17
6-4. Displaying the Average Value...................................................... 18
6-5. How to make Bias Adjustment.................................................... 19
6-6. Setting the Alarm ........................................................................ 20
6-7. Printer Output.............................................................................. 21
6-8. Data Storage ............................................................................... 22
6-9. Date and Time Display ................................................................ 23

7. Preparing a Calibration Curve............................................................. 26
7-1. What is a Calibration Curve? ...................................................... 26
7-2. Precautions when Preparing a Calibration Curve....................... 27
7-3. How to Prepare a Calibration Curve ........................................... 28
7-4. Inputting a Calibration Curve...................................................... 29
7-5. Inputting a Name for the Calibration Curve................................ 33
7-6. Display of the Input Moisture Value
when Preparing a Calibration Curve........................................... 35
7-7. Erasing a Calibration Curve ........................................................ 36
8. Error Display........................................................................................ 38
9. List of Special Operations................................................................... 40
10. Calibration Curve List.......................................................................... 41

6

7
• Supports 3 types of sensors
Supports a light-weight hand-held grip sensor (HK-300-1) that has little measurement variation
from person toperson. In addition, calibration curves for use with a conventional rubber sensor
(HK-300-2) and pressure sensor (HK-300-3) are also built in.
• Able to compensate for moisture values
Able to compensate for moisture values in the range from -9.9 to +9.9% with respect to each
calibration curve.
• Can record a maximum of 10 user calibration curves (scaled)
Users can record their own calibration curves to support various types of paper.
• Auto power o
If no measurement is made or key is operated for approximately 5 minutes, the power is
automaticallyshutoandavoidswastingthebatteries.
• Alarm setting
Set any moisture value, and an alarm will sound if the measured moisture value is higher than the
set moisture value.
1. Features

8
2. Specications
Measurement Principle :Electrical resistance
Applications :All paper
Calibration Curves *1:See "Table 1"on the right
Measurement Range :See "Table 1" on the right
Measurement Precision :Standard error 0.4% (moisture values of 15% or lower)
Standard Method :JIS P8127 (copying paper, cardboard)
Display :Digital (LCD)
Resolution :0.1%
Operating Temperature Range
:0to40˚C
Functions :User calibration curves (10 types),Data storage (250 data), Moisture value bias
adjustment (-9.9 to +9.9%), Average value display, Upper limit alarm setting, Auto
powero (automaticallygoesoinabout5minutes)
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
Included sensors :HK-300-1: grip sensor (cable included)
HK-300-2: rubber sensor (underlay, conducting rubber (2), wrench included)
HK-300-3: pressure sensor
Accessories :Shoulder strap, 1.5 V batteries (AA alkaline) (6), Carrying case, Operating manual,
Calibration curve list (Japanese and English) (1 each)
Options :Printer VZ-390, Printer cable VZC70

9
<Table 1>
*1 Becausethiscalibrationcurveispreparedata20˚Ccondition,correctmoisturevaluesmaynotbedisplayed
whentemperatureconditionsaredierent.Inthiscase,pleaseusethemoisturebiascompensationfunction
(see p.19, "6-5. How to Make a Moisture Value Bias Adjustment").
*2 Because calibration curves may dier greatly depending on conditions such as the type and thickness of
paper, the correct moisture value may not be displayed depending on the paper. In this case, please use the
moisture value bias compensation function (see p.19, "6-5. How to Make a Moisture Value Bias Adjustment,")
and a user calibration curve (see p.26, "7. Preparing a Calibration Curve").
*3Uses the same calibration curve as our "K-100/200" paper moisture meter (production discontinued).
Copying paper *2(for use with each sensor)
* Paper that is generally used in copiers, printers,
fax machines, etc.
Cardboard *2(for use with the grip sensor)
* Base paper that makes up corrugated cardboard
(without decorative paper).
Liner, kraft *3(for use with the rubber sensor and
pressure sensor)
Sensor Calibration curve Measuring range
Grip Copying paper
Cardboard
4-15
6-20
Rubber
Copying paper
Liner
Kraft
4-25
6-23
5-24
Pressure
Copying paper
Liner
Kraft
2-10
5-15
2-10

10
Main unit Accessories
Rubber sensor Underlay Conducting Wrench
rubber (2)
Shoulder strap Calibration curve list 1.5 V batteries Carrying case Operating
(Japanese and English) (AA alkaline) (6) manual
(1 each)
Grip sensor Cord Pressure sensor
HK-300-1
HK-300-2
HK-300-3
Control panel
Battery cover (back)
Connector
Display
3. Part Names

11
4
5
6
7
1
2
3
Description of display
Item No. Name of display area Description
1Calibration curve number display Displays the number of the calibration curve being used.
2Battery indicator Comes on when battery is depleted.
3Measuring times Displays the number of times measured.
4Name of calibration curve Displays the calibration curve display name or the set
calibration curve name.
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 25% in 1% increments.
4. Display

12
* The AB to YZ keys are used for inputting alphabetical characters (name of calibration curve).
* Of the numeric keys of 0 to 9, some combine numerical input and other functions.
<Control panel>
5. Description of Keypad
Key Function
UsedtoturnpowerOnandO.
Used for moisture value bias compensation.
Used to select a calibration curve.
Usedwhendeterminingtheaveragevalueandtoconrmthenumericalvalue
input.
Used when there is an input error and to input a minus sign.
Used to set the measurement upper limit value.
Used to set the printer output.
Used to input the name of the calibration curve.
Used to input the calibration curve.
Used to make a measurement.
Used to switch the measurement values from a constant display to a continuous display.
Used for block functions.

13
6-1. Before Measuring
(1) The unit is powered by six 1.5 V batteries (AA, alkaline).
Remove the rear battery cover, and 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 near depletion. Replace all six
with new batteries.
(2) Connect the sensor to the main unit. Plug the sensor connector
into the socket on the main unit, and fasten and secure the lock
ring.
* When using the grip sensor, please plug the cord (for use with the grip
sensor) into both the main unit and the sensor.
* When plugging in the grip sensor or pressure sensor connector, plug it
in with the "upper side" label facing up.
(3) Prepare the paper to be measured, and adapt it to equilibrate to
the same temperature as the main unit.
* Errorsmay result when there isalarge dierence in thetemperature
of the paper and the temperature of the unit. To make more accurate
measurements, adapt the temperature of the paper to equilibrate to
the temperature of the unit.
1. Securely plug the
connector in
3. Take note of the upper side label
2. Tighten the lock ring
6. Directions

14
6-2. Measurement Method
(1) Press the key to turn on the power. All elements of the
LCD will be displayed for about 3 seconds. Subsequently, the
"calibration curve number," "TIMES," and "%" will be displayed.
* At this time, if the display shows something other than that described
above, there may be a problem with the unit. Refer to p.38, "8. Error
Display".
(2) Select a calibration curve from the included "calibration curve
list." Press the key, and the calibration curve number will
start blinking. Enter a 2-digit calibration curve number.
<Example> Entering the value 03
Press the key. The 1-digit will start blinking.
Then, press the key again. "03" will be displayed.
* Pleasemakeuseofthecalibrationcurvelistbyaxingittothebattery
cover.
* Once the calibration curve is set, unless otherwise changed, it will be
maintainedinmemoryevenwhentheunit'spoweristurnedo.
*The symbol denotes a blinking display.

15
(3) Hold the paper against the sensor electrode in accordance with
the usage method for each sensor. Keep the paper in position
until the measurement is complete.
<Grip sensor>
1. Hold onto the grip, and pull the lever up.
* When pulling the lever up, there may be a creaking noise, but this is
not unusual.
2. Insert paper in between the electrodes.
3. Loosen your grasp on the grip, and clamp the paper in by
lowering the lever.
<Rubber sensor>
1. Place the paper on top of the underlay (acrylic plate).
2. Hold the sensor against the paper.
<Pressure sensor>
1. Insert paper in between the electrodes of the pressure sensor.
2. Clamp the paper in by pushing down on the handle until it stops.
* When using the grip sensor or pressure sensor, be careful not to nip
yourngers.
Grip
Lever
Handle
Paper
Underlay
(acrylic plate)

16
(4) Press the key, and the decimal point will start to blink.
After approximately 3 seconds, the buzzer will sound with a
"beep", and the "number of measurement times," the "moisture
value," and the "bar graph" will be displayed.
* The bar graph will display up to 25% full scale in 1% increments.
* When the moisture value is outside of the measuring range, "HI" will be
displayed if the value is higher than the measuring range, and "LO" will
be displayed if the value is lower than the measuring range.
(5) Remove the paper from the sensor.
At this time, the moisture value will remain displayed, but if mea-
surements will continue to be made, please start from "(3) Hold
the paper against the sensor electrodes in accordance with the
usage method for each sensor." When making measurements is
completed, press the key,andturnothepower.
* Withitsautopowerofunction,theunitwillautomaticallyturnitselfo
when inactive after approximately 5 minutes.
*The symbol denotes a blinking display.

17
6-3. Setting the Measurement Mode
There are two measurement modes: "Normal measurement mode" and "Continuous measurement
mode." Immediately after pressing the key and turning on the power, the unit will be set to
"Normal measurement mode." If the unit is set to "Continuous measurement mode," measurements can
be made without pressing the key for each measurement.
(1) Setting the continuous measurement mode
In step "6-2. Measurement Method (4)," press the key.
The decimal point will blink, and the moisture value and bar
graph will be displayed.
* If the paper is not held against the sensor electrodes, and if the
measured value is outside of the measuring range, either "HI" or "LO"
will be displayed, and the decimal point will blink.
(2) Canceling the continuous measurement mode
Press the key, and a "beep" will sound. The display
will momentarily go blank, and the unit will return to normal
measurement mode.
* Pressing the key turns off the power and automatically
cancels this mode.
* Note that the battery life is shorter in continuous measurement mode.
*The symbol denotes a blinking display.

18
6-4. Displaying the Average Value
When the number of measurements is from 2 to 9, and you
press , the “AVE”, “average value”, and “measurement
number” will be displayed. At this time, the “AVE”, “average
value”, and “measurement number” remain displayed, but if you
proceed to make a measurement, the “measurement number”
resets to “1”.
* If the number of measurements exceeds 9, the measured value up to that
point resets and measurement starts from measurement number 1.
* The average value cannot be determined when making measurements
in continuous measurement mode.

19
6-5. How to Make a Moisture Value Bias Adjustment
The calibration curves (scale) for this unit were prepared by determining the relationship between the
moisture of paper resulting from a drying method and the electrical resistance of the paper, and then
statistically processing these results. However, the standard measurement method and the moisture
value may not agree as a result of various conditions such as the type and thickness of the paper. In
these cases, a moisture content bias adjustment can be made (-9.9 to +9.9% with respect to each
calibration curve) by the following method.
(1) Press the key and select the calibration curve.
(2) Press the key. The "BIAS" will blink, and the previously
entered bias value will be displayed. The bias is initially set to 0.0%.
(3) Enter a bias value.
To enter the 2-digit number "1.2%," press the
keys in succession. For a negative value, press the key
prior to pressing the numerical keys.
(4) Press the key to make measurements.
* If a bias adjustment value has been entered, "BIAS" will be displayed
when making measurements.
* To cancel the bias adjustment value, enter "0.0%."
*The symbol denotes a blinking display.

20
6-6. Setting the Alarm
An upper limit moisture alarm can be set. When paper having higher moisture than the set value is
measured, the alarm will sound with a beeping tone.
(1) Press the key.
The numbers to the right of "ALARM" will blink.
(2) Enter the alarm value.
Enter a 2-digit number. To enter "8%", press the
keys in succession.
(3) A value set for the alarm of "08%" will be displayed. Press the
key to make measurements.
* To cancel the value set for the alarm, enter "00%."
*The symbol denotes a blinking display.