Kett FD-720 User manual

Infrared Moisture Determination Balance
FD-720
Operating Manual

Infrared Moisture Determination Balance Safety NotesFPL950701
Improper use of the infrared moisture tester in violation of the following safety notes may result in death, injury or damage to
property due to fire, etc. Furthermore, the infrared moisture tester has high temperature components which can cause burns
if proper safety guidelines are not followed.
Observe all safety guidelines
Carefully read and observe all safety notes included in this user’s manual.
Do not use the unit if it appears to be malfunctioning
If you suspect a problem or malfunction in the unit, discontinue use and immediately have the unit inspected by certified
Kett service personnel.
Meanings of Warning Indicators and Symbols
The following symbols are used in this operating manual and product to prevent accidents from occurring as a result of
improper usage or handling. The meaning of each symbol is as described below.
Failure to observe these items may lead to death or injury to the user.
Failure to observe these items may lead to injury to the user or damage to property.
Items which the user should be aware of in order to use the unit safely.
Caution Symbols Stop Symbols Symbols Requiring User Action
Fire Hazard Burn Hazard Electric Shock Prohibited Do Not Do not Expose Required Disconnect Plug
Hazard Disassemble to Water Action from Electrical Outlet
Do not attempt to measure samples which may undergo dangerous chemical reactions when heated, as doing so
may result in an explosion or release of toxic gas.
Do not place flammable materials near the infrared moisture tester.
Some parts of the infrared moisture tester become extremely hot during operation and could lead to a fire if
flammable materials are placed nearby.
Never use with any power source for which the product was not designed.
Application of excessively high voltage may result in overheating, malfunction, or fire.
Do not attempt to disassemble, modify or rebuild the infrared moisture tester.
Doing so may result in accident, electric shock, etc. If you believe the unit may be malfunctioning, take it to an
authorized Kett service center for service.
Do not allow the unit to come in contact with water.
The infrared moisture tester is not waterproof. Do not allow water or other liquids to get into the unit’s enclosure as
this may lead to electric shock or malfunction.
Do not touch the heat-dispersing component of the heater cover or sample dish with your bare hands, as doing
so might result in burns.
This infrared moisture tester is at high temperature during and immediately after making measurements. When
touching the unit, only use the specified control knobs and accessories.
Warning
Caution
Note
Warning Fire Hazard Electric Shock Hazard
Caution Burn Hazard Electric Shock Hazard

Contents
1. Precautions to be observed when taking measurements .................... 6
2. Description of Features and Principles of Operation ................................. 8
2-1 Principles of Operation............................................................................................. 8
2-2 Features ................................................................................................................... 8
2-3 Applications (i.e., materials which can be measured) ............................................. 8
3. Specifications ........................................................................................... 9
4. Names of Individual Parts and Components ......................................... 10
4-1 Names of Parts of Main Unit .................................................................................... 10
4-2 Parts and Accessories ............................................................................................. 11
5. Display and Control Panel ....................................................................... 12
5-1 Display......................................................................................................................12
5-2 Control Panel Operations......................................................................................... 13
6. Assembly and Installation of Main Unit.................................................. 14
7. Tips on how to ensure accurate measurements ................................... 17
8. How to Conduct Measurements.............................................................. 19
9. Specifying Measuring Conditions........................................................... 23
9-1 Types of Settings...................................................................................................... 23
9-2 Descriptions of Individual Measuring Condition Settings ........................................ 23
9-2-1 Selecting the CONDITIONS (Measuring conditions storage area) ............. 24
9-2-2 Selecting the MODE (Measuring mode)...................................................... 25
9-2-3 TEMP (Drying temperature)......................................................................... 34
9-2-4 Bias .............................................................................................................. 35
10. Menu Settings ........................................................................................... 36
10-1 Types of Menu Settings............................................................................................ 36
10-2 Descriptions of Individual Menu Items ..................................................................... 36
10-2-1 Selecting units (measurement standard and minimum display units) ......... 37
10-2-2 Specifying the type and format of output ..................................................... 38
10-2-3 Specifying sample codes ............................................................................. 41
10-2-4 Setting the date and time............................................................................. 42
10-2-5 CAL (Scale calibration) ................................................................................ 43
10-2-6 Specifying a device ID ................................................................................. 45
10-2-7 Specifying a password ................................................................................. 46
10-2-8 Specifying the power settings ...................................................................... 47

11. Error Messages......................................................................................... 48
12. Predictive Measurements ........................................................................ 50
12-1 A Description of Predictive Measuring..................................................................... 50
12-2 Procedure for Obtaining Predicted Measurements.................................................. 52
12-2-1 Calculating the bias to be specified when operating in predictive
measurement mode ..................................................................................... 52
12-2-2 Evaluating predicted measurements ........................................................... 54
12-2-3 Obtaining predicted measurements............................................................. 55
13. Printing Output to a Printer (Option) ...................................................... 56
13-1 Sample Printer Output ............................................................................................. 56
13-2 Outputting Past Measurement Data......................................................................... 59
14. Computer Interface................................................................................... 60
14-1 RS-232C Interface Specifications ............................................................................ 60
14-2 Setting Up and Transmitting Data ............................................................................ 61
14-2-1 Connecting the RS-232C cable ................................................................... 61
14-2-2 FD-720 settings............................................................................................ 61
14-2-3 Starting up the computer ............................................................................. 61
14-3 Computer Output Format ......................................................................................... 62
15. Maintenance.............................................................................................. 64
15-1 Performing Maintenance .......................................................................................... 64
15-2 Replacing Fuses ...................................................................................................... 65

6
Be sure to follow proper procedures during operation
When opening or closing the lid to the heater, always be sure to use the
handle.
Be sure to put the wind shield, sample dish tray, handler, and sample
dishes properly into place. (See “6.Assembly and Installation of Main
Unit” on p. 14 for instructions.)
Always be sure to use the provided handler to remove sample dishes.
When removing a sample dish, do not allow your hands to come into
contact with the heater or any of the metal (aluminum) parts around the
heater, as doing so could result in burns.
The sample dish and area around the sample dish will be very hot
immediately after performing a measurement. Be sure to place the
sample dish in an appropriate place to allow it to cool.
Areas to touch and areas subject to high temperatures
1. Precautions to be observed when taking measurements
Handle for holding heater lid
Place to grasp handler
Heater
Never perform measurements using hazardous materials
Heating materials which would present a risk of explosion or combustion, or materials which could give
off noxious fumes when heated, is extremely dangerous and this instrument should never be used with
any such materials.The same also applies to the use of any materials which might cause hazardous
chemical reactions to take place when heated.
When heating materials that would first dry along the surface, and then allow the internal pressure to rise
excessively, there is a danger that heating such materials could cause them to rupture. Such materials
should never be measured, as doing so could be dangerous.
If any materials being measured ignite, immediately remove the power plug from its socket and take
appropriate measures extinguish the fire.
While a measurement is being performed or immediately after a measurement has been performed, the
areas marked in the accompanying diagrams as will heat up to high temperatures.When handling
the unit, always be sure to allow your hands to come into contact only with the designated areas.
Handle
Sample
dish
Handler
HOT
HOT HOT
HOT

7
Never place any easily flammable objects near the product
The components of the infrared moisture tester can become very hot when measurements are
being taken or immediately after measurements have been taken.The heat could cause
objects or materials to catch fire if they were to come into contact with the unit, an d no easily
flammable objects or materials should be kept near the product.
Never place any objects which might easily be damaged by heat near the unit, as doing so
might result in deformation or damage to the objects in question.
No objects should ever be placed upon the heater.
If you see fire coming from the unit or notice smoke, an odd smell, or any other sign of abnor-
mal functioning, remove the power plug from its socket, or take whatever other steps would be
appropriate to deal with the problem.
Notes on using the control keys
Never turn on the power to the unit while holding down any of the control keys.
Never press any keys other than those directed or press two or more keys together at the same
time unless directed to do so.
When there is any danger that the unit might be damaged by lightning, remove the power plug
from its socket.
Stopping operation
The key can be pressed at any time during operation to halt operation. If you suspect
for any reason that the product is not operating properly or that there is any sort of danger,
immediately press the key to halt operation.
Setup and storage
Avoid using or storing the unit in a location where it would be exposed to excessively high or
low temperatures, high levels of humidity, direct sunlight, electromagnetic interference, corro-
sive gases, or large amounts of dust.
Place the unit on a flat and stable surface where it will not be subjected to significant vibration
during use.
When moving the unit, never tilt it any more than necessary.
Take care never to drop or bump the unit or otherwise allow it to be subjected to strong shocks
or the application of excessive force.
When removing the power cord or RS-232C interface cable, never pull on the cord or cable and
instead hold the plug or cable connector when removing.
When the unit is not to be used over an extended period of time, remove the power plug from
its socket.

8
2. Description of Features and Principles of Operation
2-1 Principles of Operation
This unit determines the moisture and solid contents of samples by heating them using infrared
illumination and measuring changes in mass due to evaporation.This is referred to as the loss on
drying method and is the simplest method for determining moisture content and thus mandated by
many public regulations related to measurement standards.
2-2 Features
UniBloc sensor
The core of the scale is formed by a single-unit aluminum UniBloc*1weight sensor which provides excellent responsive-
ness, temperature characteristics, and shock resistance.This UniBloc*1sensor ensures excellent reliability in moisture
content measurements even over extended use.
New Auto Taring mechanism
The FD-720 comes with an internal Auto Taring mechanism which makes it possible to perform reset correction while
performing measurements, thus eliminating drift of the scale even when performing measurements over long periods of
time and making it possible to obtain extremely reliable measurements.
Mid-infrared quartz heating lamp
The FD-720 uses a mid-infrared quartz heating lamp (with a central wavelength of 2.6 µm).This heater provides
excellent drying efficiency over a wide range of different types of sample, makes it difficult for differences to occur as a
result of the colors of different samples, and eliminates the overheating of sample surfaces, thus making it possible to
obtain ideal drying conditions.
What‘s more, this heating lamp also provides a long service life 5~10 times greater (20,000 to 30,000 hours*2) than
older infrared or halogen lamps.
A wide selection of measuring modes
The FD-720 provides a wide selection of measuring modes (automatic halting mode, timed halting mode, high-speed
drying mode, low-speed drying mode, stepped drying mode, and predictive measuring mode) which makes it possible to
perform measurements under the drying conditions most appropriate to the drying characteristics of the sample being
measured.
The ability to store measuring conditions
The FD-720 provides 10 measuring conditions storage areas which may be used to store sets of measuring conditions
to be used for different types of materials, thus reducing the amount of time involved in specifying settings before
performing measurements.
Data memory
The FD-720 is able to store up to 100 sets of measurement data in memory, thus making it possible to output large
batches of data all at one time.
Printer port
The FD-720 is equipped with a printer port which may be used to connect to a (separately sold) printer, thus making it
possible to print out text or graph data showing final measurements, or intermediate drying states while performing
measurements.
Scale calibration
The scale of the FD-720 can be calibrated, and it is possible to print output during calibration meeting GLP, GMP, or ISO
standards.
The ability to display changes in moisture content (∆M) in a numeric and scalar display
The change (∆M) in moisture content over 30-second intervals is displayed in a numeric and scalar display, thus making
it easier to estimate when a measurements should be completed.This feature is also useful in helping to determine
measurement completion conditions.
*1 UniBlock is a product name of the Shimadzu Corporation.
*2 Indicates actual measured time for operation of infrared heater.Your performance may vary.
2-3 Applications (i.e., materials which can be measured)
Materials for which water is the only main component which evaporates as a result of heating
Materials for which no dangerous chemical reactions or other changes occur as a result of
heating
*Measurements can be performed using virtually any material meeting these conditions.

9
3. Specifications
Measurement format : Evaporation weight loss method (Heat drying and weight loss method)
Sample weight : 0.5~120 g using selective weight sampling method
Minimum displayable units
:Moisture content (solids): 0.1% or 0.01% (selectable), Weight: 0.001 g
Measurable quantities : Moisture content (wet base & dry base), weight, solid content
Measurement range: : 0-100% (wet base, solids)
0-500% (dry base)
Reproducibility (Standard deviation)*1
:Samples with a weight of 5 g or higher: 0.05%
Samples with a weight of 10 g or higher: 0.02%
*1When using standard samples and measuring conditions as determined
by Kett Electric Laboratory.
Measurement modes : Automatic halting mode
Timed halting mode (with measurement times of 1~240 minutes or
continuous measurement mode, with a maximum measurement time of
12 hours)
High-speed drying mode (may be used with either automatic or timed
halting mode)
Low-speed drying mode (may be used with either automatic or timed
halting mode)
Stepped drying mode (performs drying in 5 steps)
Predictive (comparative) measuring mode
Temperature range : May be set within a range of 30~180°C in 1-degree increments
Display : Backlit LCD display (137 x 43 mm)
External output : RS-232C interface
Communications : Data may be output from the Data Logger software KDL-01 (sold
separately) or similar software.
Storage of measurement conditions
:Allows for storage of 10 sets of measurement conditions
Data memory : Allows for storage of 100 sets of data
Environmental conditions : Pollution degree 2, Altitude up to 2000 m
Temperature/humidity operating range
:5~40°C, maximum of 85% RH
Heat source : Medium frequency infrared heater (200W x 2)
Temperature sensor : Thermistor
Power supply, Power consumption
:AC 100V~120V (50/60 Hz) 900W
AC 220V~240V (50/60 Hz) 900W
Weight and external dimensions
:4.5 kg, 220 x 415 x 190 mm (W x D x H)
Sample dish : SUS sample dish (Diameter: 130 mm; Depth 13 mm)
Items included : 2 sample dishes, 2 sample dish handlers, wind shield, sample dish tray,
spoon & spatula set, 2 spare (T8A 250V) fuses, 2 packages of aluminum
foil sheets (10 per package), operating manual
Optional equipment : Printer set (includes a VZ-330 printer, a printer interface cable (VZC-14),
printer paper, and an AC adapter), printer paper (10 rolls), package of
aluminum foil sheets (500 sheets), RS-232C cable (VZC-52),
Data Logger software KDL-01, TQ-100 sample crusher

10
4. Names of Individual Parts and Components
4-1 Names of Parts of Main Unit
Handle
Observation window
Temperature sensor
Heater lid
Display
Level
Heater
Wind shield
Sample dish
Sample dish handler
Control panel
Power conversion switch Power switch
Power inlet
Fuse holder
RS-232C port
Height adjustment legs

11
4-2 Parts and Accessories
Sample dishes (2) Sample dish handler (2) Wind shield
Sample dish tray Spoon & spatula set Spare (T8A 250V) fuses (2)
(Power cord) (Three-prong plug adapter)
Operating manual
Packages of
aluminum foil sheets
(10 per package) (2)
Note: The shape of the power plug varies in different countries.
The actual accessory may be different from the one in this
illustration.

12
5. Display and Control Panel
5-1 Display
Item
1
2
3
4
5
6
7
8
9
0
!
@
#
$
%
^
&
*
Name
Stability indicator
Measuring complete indicator
Heater on indicator
Predictive measuring indicator
Predictive measuring indicator (Lights
when performing comparative
measurement)
Menu display
Measuring conditions display
Measuring conditions storage area
display*
Measuring mode display*
Predictive measurement convergence
conditions display*
Halt conditions display*
Drying temperature display*
Bias display*
Moisture/Solid/Weight display
Temperature display
Measuring time display
Change in moisture (solid) content
display
Change in moisture (solid) content
scale display
Description
This indicator lights up when the internal scale is stable.
This indicator lights up when measuring has been completed.
This indicator flashes whenever the heater is turned on.
This indicator lights up when performing predictive measurements.
This indicator lights up when measuring has been completed after performing a comparative predictive
measurement.
Used to display individual menu items in sequence each time the key is pressed after pressing
the key.
Flashes to display individual items in sequence each time the key is pressed after pressing the
key. Values may be specified for a given item when it is flashing.
Used to display the number of the currently selected measuring conditions storage area.
Used to display the currently selected measuring mode.
Used to display the conditions for convergence of measured values when operating in predictive or
comparative mode. When operating in high-speed drying mode, used to display the conditions required
in order to maintain a high-speed drying temperature.
Used to display the currently selected halt conditions. When the value is displayed as a percentage, it
indicates that measuring will halt automatically, and when value is displayed in minutes, it indicates that
measuring will halt when the specified amount of time is reached.
Used to display the currently selected drying temperature.
Used to display the moisture (or solid) bias.
When measuring weight (i.e., when in idling mode), used to display the weight in grams. When
performing measurements, used to display the moisture content and solids content as percentages.
When measuring weight, this display is also used to display ‘oL’ (i.e., overload) when the weight
exceeds the maximum measurable weight and to display ‘–oL’ (i.e., no overload) when the weight does
not exceed the maximum measurable weight.
Used to display the temperature under the heater lid.
Used to display the amount of elapsed time during measuring.
Used to display the change (∆M) in moisture (or solid) content at 30-second intervals during
measurement.
Used to display the change (∆M) in moisture (or solid) content in scalar format. The scale may display a
maximum change of 2 percent/30 seconds.
* Items marked with an asterisk display as flashing items.
Display as it appears with the power on.
(All display items shown.)
12 3$ % ^ 9 8
&*
0
!
@
#
7
4
6
5

13
5-2 Control Panel Operations
The control panel keys are used to perform the following operations.
Name
START/STOP key
TARE/RESET key
ENTER key
SELECT key
UP key / DOWN key
CONDITION key
MENU key
Operation
Used to start measuring or to abort a measuring operation.
Also used to turn off the alarm which sounds to indicate that a measuring operation has been
completed.
Used to deduct the tare weight.
Also used to perform a reset after an error has occurred.
Also used to return to display of weight after completion of measurement.
Used to confirm currently selected settings.
When further settings must be specified, pressing the ENTER key causes the next specified
item to be displayed; when there are no further settings to be selected, the specified setting is
confirmed and takes effect.
Used to select different settings or setting values.
Used to change the value of different settings.
Pressing the key causes the value in question to increase, and pressing the key
causes the value in question to decrease.
Used to begin or end the specification of measuring conditions.
Used to begin or end the specification of menu settings.

14
6. Assembly and Installation of Main Unit
1Opening the package
Open the package and check to make sure all listed
items are included.
Scale stopper
Sample dish panel
2Installing the main unit
•Place the main unit on a flat, stable surface where
it will not be subject to vibrations or exposed to
drafts or breezes.
•Install the main unit so that it is at least 10cm from
the wall both to the front and back and to the left
and right. Make sure there is a space at least 30cm
above the top of the heater cover.
•Do not use it in a closed installation environment.
Depending on the sample, heating may produce
hazardous substances. Install it in a location that
can be adequately ventilated.
4Checking the power settings
Check the power conversion switch located on the
rear of the main unit to make sure that it is currently
set to the proper voltage setting for your power
source.
*Note that an error will occur if this switch is not set to
a position matching the power source being used. Power conversion
switch
3Removing the stopper from the sample dish panel
When using the unit for the first time after purchase,
remove the scale stopper attached below the sample
dish panel as indicated in the accompanying
diagram.
〜
〜
100V 220V
120V 240V

15
5Level is located to the left of the control panel.
Knobs
Round
holes
Stays
Sample dish panel
Grooves
Stay
8Attaching the sample dish handler
Next, attach the sample dish handler, being sure
when you do so that the grooves of the handler fit
smoothly over the projection located at the rear of the
wind shield.
*While the sample dish handler is shown with the
handle being placed to the right in the diagram shown
here, the handle may be placed either to the left or
right, and you should accordingly place the handle in
the position you find easiest to use.
7Attaching the sample dish tray
Place the sample dish tray gently into the sample
dish panel at the center of the main unit, being sure
when you do so that the round hole of the sample
dish tray fit smoothly over the stay on the sample
dish panel.
6Installing the wind shield
Open the lid of the heater, hold the wind shield by the
knobs on the top, and place it on top of the sample
dish panel so that the two round holes in the wind
shield fit over the stays of the sample dish panel.
*Place the wind shield firmly into position so that it
does not come into contact with the black projection
located at the center of the main unit (sample dish
panel).
5Ensuring that the unit is level
Turn the two height adjustment legs located at both
sides of the lower rear of the unit to adjust until the
level bubble falls within the red circle.
*The level is located to the left of the control panel. The
tester is perfectly level if the bubble appears in the
center of the red circle when viewed from directly
above. Not level Level
Bubble
⇒
Height
adjustment
legs
Sample dish
panel
Round hole
Stays

16
9Placing the sample dish into the tester
Please the sample dish gently down onto the sample
dish tray.
0Close the heater lid
!Connecting the power cord
Insert the female end of the power cord into the
power inlet located at the rear of he unit. Then insert
the power plug into the power outlet. Connect the
plug to a power outlet in an easily accessed location
so that it can be pulled out immediately if there are
any problems with the infrared moisture tester. And
be sure to always ground the main unit. If there is no
grounding terminal on the power outlet, use a
grounding adapter. The shape of the power plug
varies in different countries. Use a power cord set
suited to the shape of the plug that you actually use.
@Connecting the printer (sold separately)
If you are using a printer, connect the printer using
the provided printer interface cable. For instructions
on how to use the printer, see the separately
provided VZ-330 Printer User’s Manual.
Assembly is now complete.
*Some parts must be oriented in a fixed direction for
assembly. Note that placing parts in the wrong
direction may result in errors in operation or in
erroneous readings being obtained, and that you
should take care that all parts are put into place in their
proper positions.
Power cord inlet
Connector
Installation method
• When grounding with the connector
• When grounding with a grounding adapter
Power cord
Grounding terminal
Grounding terminal equipped
power outlet
Grounding adapter
Grounding by screwing in
the grounding adapter

17
7. Tips on how to ensure accurate measurements
Points to remember when conducting multiple measurements in succession
Placing a sample onto a sample dish which is already warm may cause moisture from the sample to
evaporate before measuring is begun and cause errors to occur in measurement. Always be sure to
use a cool sample dish when performing a second or subsequent measurements.
You should also take care to allow an even amount of time to elapse between measurements, as
errors in measurement may occur if the temperature of the internal scale of the unit does not remain
at a constant level.
*Two sample dishes and two sample dish handlers are included.
Use of sample dishes and aluminum foil sheets
It is impossible to obtain accurate measurements if residue from the sample last measured remains
on the sample dish. To avoid such problems, either wipe the sample dish clean of any dirt or soil (see
“15. Maintenance” on p. 64 for further instructions) or use disposable aluminum foil sheets to protect
against residues, soil, or dirt.
*Twenty disposable aluminum foil sheets are included with the unit.
Quantity and placement of powdered, particulate and viscous sample materials
The easier it is to heat the surface of a sample material, the easier it is for projecting portions of the
material or for material at the top of a mound of material to become burnt. If the material is placed in
a mound on the dish or if the material is not flat and evenly laid out, this is likely to happen, thus
making it impossible to obtain accurate measurements.
Note that while the precision of measurement improves the more flatly and evenly samples are
placed and the higher the amount of sample material used, the quantity of sample material used is
too great if the surface becomes burned before lower layers are fully dried.
Always be sure to lay out samples flatly and evenly as indicated in the diagram below.
Measuring liquid samples
Virtually all liquid materials will coagulate after being dried, and when working with such materials
they should be placed on the provided sheets of aluminum foil. Note that these aluminum foil sheets
are water-permeable, thus making it possible to obtain wide and even placement and making them
effective for use in shortening measuring times and obtaining accurate measurements.
Depending on the sample in question, the use of sand to speed up drying (Silica sand or ocean sand
with a mesh of 20 or so) may be even more effective.
Proper placement Incorrect placement

18
Crushing samples consisting of large particles before measuring
If samples consisting of large particles are measured in their original condition it not only takes longer
for drying to completed to the center, but also may result in problems such as the surface of the
sample becoming burned, thus making it impossible to obtain accurate measurements.
For this reason you should always crush samples to an appropriate size.
The TQ-100 Sample Crusher (sold separately) is excellent for this purpose.
TQ-100 Sample Crusher

19
8. How to Conduct Measurements
Before beginning a measurement, check to make sure that there is nothing remaining in the
sample dish. Also be sure that all parts of the main unit are firmly fixed in place and be sure that
the heater lid has been closed firmly before starting to perform measurements.
Also be sure to check on a regular basis that the main unit is level and readjust the height adjust-
ment legs if necessary. (See “6.Assembly and Installation of Main Unit” on p.14 for instructions on
how to do so.)
Display
* Display will show default settings at the
time of shipment. (See p. 24, “9-2-1
Selecting the CONDITIONS (Measuring
conditions storage area)”.)
Operating instructions
1Turn on the power switch
Turn on the power switch located at the rear of the unit.
When you turn on the power for the first time after purchasing your tester, a
tone will sound, the display will light up with all items lit and then change to
display first ‘CHE5’ and then a string of dashes (i.e., ‘- - - - -’).
At the bottom left of the display will be displayed the power settings
specified (as described in step 4of “6. Assembly and Installation of Main
Unit” on p. 14) with the display reading ‘100V’ when the power settings have
been set to 100~120V and reading ‘220V’ when they have been set to
220~240V.
If using the tester in a country that does not use 100V power, then this is the
time when you should specify the power settings to be used. (See step 3of
“10-2-8 Specifying the power settings” on p. 47 for instruction on how to do
so.)
* When using the tester in Japan, the settings should be left unchanged. Check
to make sure that the display reads ‘100V’ and then press the key.
As the power setting continues to be displayed in the lower left of the display,
the center of the display will change to display ‘CHE4’, ‘CHE3’, … , ‘CHE0’ and a
tone will sound and the display will change to weight reading display mode.
* When the power is turned on for the second or subsequent times, a tone will
sound, the display will light up with all items lit, the display will change to
display ‘CHE5’, ‘CHE4’, … , ‘CHE0’ while the currently specified power setting is
displayed, and then a tone will sound again and the display will change to
weight reading display mode.
* Note that it is recommended that you always turn on the tester about half an
hour before use in order to obtain consistent measurements.
2Specifying settings
When performing measurements for the first time, or when you wish to
change current settings before measuring, then you should specify the
settings required for measuring here. (See “9. Specifying Measuring
Conditions” on p. 23 and “10. Menu settings” on p. 36 for instructions on
how to do so.)
3Placing the sample dish in the tester
Open the heater lid, place the sample dish on the handler, and place the
handler into the tester, being sure when you do so that the grooves of the
handler fit smoothly over the projection located at the rear of the wind shield.
* If you have already placed the sample dish and handler (as described in “6.
Assembly and Installation of Main Unit”) then proceed directly to the next step.
*When using an aluminum foil sheet or other wrapping because of the nature of
the sample being measured, place the wrapping on top of the sample dish.
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Grooves
Stays

20
DisplayOperating instructions
4Performing a tare
Shut the heater lid, check to make sure that the steady-state mark ( ) is
displayed, and press the key. A series of hyphens and the word
‘TARE’ will be displayed, the sample dish will move vertically and a tare will
be performed. A sharp tone will then sound and the word ‘TARE’ will
disappear from the display, a weight of ‘0.000 g’ will be displayed and the
tare will then be complete.
* Always be sure that the heater lid is closed when performing a tare. Also make
sure that the tester is not exposed to drafts or breezes, or subjected to any
vibrations when a tare is being performed.
5Placing a sample in the tester
Open the lid to the heater and place the sample inside.
Be sure to place the sample as flatly as possible into the tester so that heat
is applied evenly to the sample during measurement. (See “7. Tips on how
to ensure accurate measurements” on p. 17 for further information.)
6Beginning measurement
Close the lid of the heater, check to make sure that the stability indicator ( )
is being displayed, and then press the key. The display will switch
from a display of the weight (i.e., grams) to a percentage display and the
measuring time will be displayed.
The heating indicator ( ) will start to flash and drying will begin.
*There may be times when the stability indicator ( ) is not displayed because of
external vibrations or drafts or breezes. While it is possible to perform
measurements at such times, there may be cases when it is impossible to
obtain accurate measurements at such times. You should always be sure to
conduct measurements in a location as free as possible of vibrations, drafts,
breezes, or any other harmful influences.