Kett HI-700 User manual

Operating Manual
Thank you for purchasing this product.
Please read the operating manual carefully and use this product properly.
Biomass Fuel Moisture Tester
HI-700

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o ............................................................................... 14
 7-3.Batterylevelicon........................................................................... 14
8. Error Display ......................................................................................... 15
9.Instructionsforproperuse .................................................................. 17

4
This instrument can measure the moisture content of biomass
fuel. 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” attached for measurable biomass fuel 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 dierent even among the same
HI-700 models. The display may be dierent between examples in the
Operating Manual and the real ones on the actual tester, but the usage
is the same.

5
2. Specications
Measuring principle :Capacitance (Dielectric) (50MHz)
Applications : Solid Biomass Fuels
Measurement range : 3 - 60% (product dependent)
Sample volume :240 mL
Operating temperature range : 0 - 40 °C
Precision :<Moisture> Standard error of 1.0% or less versus drying method (all products
with moisture content of less than 20%)
Correction function :<Mass> By integrated weighing scale
<Temperature> By thermistor
Other functions :Average, auto power o
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), Product list,
Operating manual

6
3. Part Names
<Front> <Accessories>
Measuring section
(sample inlet)
Battery cover
Keyboard
Display
Inner cylinder
Funnel Manual hopper
(Sample cup)
Product list Operating manual
Brush Batteries
(1.5V “R6” or “AA” size, x4)
HI-700 PRODUCT LIST

7
4. Display / Keyboard
MEA. key
Measurement
POWER key
Power On/O
Moisture value
Battery level icon
Product name
Version No.
Product number
Sample in ( )
Sample out ( )
icon
Number of
measuring
SELECT key
Selection of products
AVG. key
Average value

8
5. Preparation and Conguration
• 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 displayed measured value blinks (warning
indication), see “8. Error Display” on page 16.
5-1. Battery Installation
Theunit is powered by four 1.5 V batteries (A A ,
manganese). Remove the bottom batter y 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, the four-digit number in the upper left while
displaying the all contents is the version number.)
(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 PKSD”.

9
5-3.Product number selection
Select a product number to be measured from the
"Product List".
(1) Ever y time the key is pressed, the product
number is displayed in the following order:
"01→02→03→04→· · ·".
(2) For example, to change to “04 WP” when “01 PKSD”
is displayed.
(3) Press the key 3 times to adjust the product
number to "03".
(4) Now, “04 WP” 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.

10
6-1. Manual hopper
6. Sample Extraction and Measurement
Use of Manual hopper
<Items to be used>
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 o the sample.
[Note] Never extract a sample directly with the manual
hopper.
Funnel Manual hopper
Funnel
Manual hopper

11
6-3. Measurement
(1) Make sure that there is no residual sample in the
measuring section, and press the key.
[Note] First, the decimal point blinks.
During the blinking, a zero adjustment (tare)
of the weighing scale is performed. Therefore,
never move the instrument. If the instrument
vibrates even slightly, a zero adjustment cannot
be performed, and the decimal point blinking
may not stop.
(2) After the sample in icon starts to blink, load the
sample from the manual hopper into the center of the
measuring unit as shown in the drawing on the right.
Load the sample at a constant speed for the entire
sample to be loaded within 5 to 6 seconds.
The sample should be level within the measuring
section.
[Note] If the sample is not level in the measuring
section, t he moisture content may not be
correctly measured.
During blinking, do not move the instrument.

12
(3) After the decimal point blinks for approx. 5 seconds, the
measuring count and moisture content are displayed.
Display example : 01 PKSD 1TIMES 13.5%
(Product number : 01 PKS (Dura),
1st measurement, moisture content 13.5%)
The measuring count is displayed from 1 to 9.
The 10th measuring count is displayed as 1.
[Note 1] For samples with high moisture content, the moisture
content difference among individual grains is
large. While the moisture content can be displayed,
measurement precision is not as good as lowe r
moisture content samples.
[Note 2] When the moisture content is below the measurement
range, "Lo" is displayed, and when the moisture
content is above the range, "Hi" is displayed.
[Note 3] When the sample is loaded into the measuring unit,
some sample may remain on the electrode at the
center of the measuring unit. In such cases, use the
attached brush to put the sample into the measuring
unit within 5 seconds of the decimal point blinking. If a
measurement is performed while the sample remains
on the electrode, an error may occur.
(example of below measurement range)
(example of above measurement range)

13
(4) After the sample out icon is displayed, discharge the
sample to prepare for the next measurement.
[Note 1] The moisture content is displayed even after
discharging the sample, but pressing the key
clears the moisture content, blinks the decimal point,
and starts the zero adjustment.
[Note 2] The high moisture sample remaining may cause the
measurement error due to the deterioration of the
electrode. Discharge immediately and clean with the
included brush.
When samples with the same product number are
continuously measured, repeat operations from “6-2. How
to extract a sample” on page 10.
When samples with dierent product numbers are measured,
repeat operations from “5-3. Product number selection”
on page 9.

14
7-1. Displaying the average moisture value
When the measurement count is 2 to 9, the average
value can be calculated (simple arithmetic mean).
Pressing the key displays the average value of
measurements from 1st to the current (up to 9).
In the example at the right, “the average of 2
measurements is 13.5%”.
[Note] When the key is pressed once, the next
measurement count starts from 1st.
7-2. Auto power o
If no measurement or operation is performed for 3
minutes with the power on, the power is automatically
turned o to avoid battery drain.
A buzzer sounds and the displayed contents disappear.
7-3. Battery level icon
When the battery is low, the battery level icon ( )
appears on the display.
When the icon appears, replace the battery with new
ones reference "5-1. Battery installation" on page 8.
[Note] The moisture content may not be properly
measured when the battery level icon displayed.
7. Other functions

15
The following error are displayed when this instrument or usage conditions are not normal. In such cases, please
contact us because repair may be necessary. This is also true should other error messages be displayed.
8. Error Display
Error Display Description Remedy
001 Problem with the temperature measurement circuit.
Contact to our distributor.
002 Problem with the capacitance measurement circuit.
003 Problem with the weight measurement circuit.
011 The measurement of empty capacitance is too high.
013 Main unit temperature is too high: over 60 °C.
Use the tester in the operating temperature
of 0 to 40 °C.
014 Main unit temperature is too low: under -10 °C.
015 Main unit board temperature is too high: over 60 °C.
016 Main unit board temperature is too low: under -10 °C.
017 Tare weighing is unstable for more than 20 seconds. Use the tester in conditions that wind is
not strong and no vibration is sensed.
018 Tare weight is too high.
Contact to our distributor.
019 Tare weight is too low.
021 Sample weighing is unstable for more than 20 seconds. Use the tester in conditions that wind is
not strong and no vibration is sensed.
024 Sample temperature is too high: over 60 °C. Try measurement after the samples
are thermally homogenized in the
measurement environment.
025 Sample temperature is too low: under -10 °C.

16
Warning indication (measured value blinking)
• The main unit temperature is above (or below) the
operating temperature range 0-40°C.
• The main unit board temperature is above (or
below) the operating temperature range 0-40°C.
• The sample temperature is above (or below) the
operating temperature range 0-40°C.
• The temperature difference between the sample
and main unit board is 10°C or more.
[Note1] The measurement value displayed with a warning may have a large error. Use within the
operating temperature range 0-40°C.
[Note2] An error code is displayed when the main body temperature or the sample temperature less
than -10 °C or higher than 60°C.
This tester will display the warning in dication (measured value blinking) with following situations.

17
(1) This tester is a precision instrument equipped with an integrated weighing scale. To avoid instrument
failure, do not hit the instrument or drop it.
(2) Do not directly touch the metal part of the measuring unit with your hand. Failure to observe this may
generate static electricity which may lead to breakdown.
(3) The protrusion inside the measuring unit is the temperature sensor and, therefore, be careful not to break it.
(4) When the inner portion of the measuring unit becomes dirty, use a soft damp cloth to wipe inside.
Never wash this tester in water.
(5) When this tester is not used for a long period of time, remove the batteries.
(6) If a displayed measured value is not normal or is questionable, stop using this tester immediately and
contact us.
9. Instructions for proper use

060303
Caution
● Itis strictlyprohibitedtotransferpart orallofthis manualwithout
permission.
● Thecontentsofthismanualaresubjecttochangewithoutnotice.
● Theappearances,screens, etc. ofthe productandaccessories
displayedonthismanualmaydifferfromtheactualones,however,
operationsandfunctionsarenotaffected.
● Alleffortshavebeenmadetoensurethecontentsofthismanualare
accurate.However,ifyounotice anypart tobeunclear,incorrect,
omitted,orthelikeinthismanual,pleasecontactus.
● Beawarethatwearenotliablefortheeffectsresultingfromopera-
tionsaccordingtothismanualregardlessoftheitemsabove.