Yamato DF Series User manual

Instruction Manual
For
FINE OVEN
ModelDF811/DF1011
DH811/DH1011
Version 1
●Thank you for purchasing “DF/DH Series" of Yamato
Scientific Co., Ltd.
●To use this unit properly, read this "Instruction Manual"
thoroughly before using this unit.
Keep this instruction manual around this unit for
referring at anytime.
：WARNING!:
Carefully read and thoroughly understand the
important warning items described in this manual
before using this unit.
Yamato Scientific Co., LTD.
This paper has been printed on recycled paper.

Table of Contents
SAFETY PRECAUTIONS .................................................................................................................1
Explanation of pictograms ..............................................................................................................1
Symbol mark table ..........................................................................................................................2
Warning・Cautions.........................................................................................................................3
BEFORE USING IT ..........................................................................................................................4
To install and preparation before using.........................................................................................4
PRECAUTIONS IN HANDLING......................................................................................................8
SAFETY DEVICES AND ERROR CODES .....................................................................................12
Purposes and Operations of Safety Device and Counter-measures...........................................12
DESCRIPTION AND FUNCTION OF EACH PART......................................................................13
Main unit .......................................................................................................................................13
Control Panel .................................................................................................................................14
PREPARATION AND CHECK BEFORE USING ..........................................................................15
POWER ON/OFF.............................................................................................................................16
METHOD OF OPERATION MENU ...............................................................................................17
Selection of operation mode ..........................................................................................................17
FIXED TEMPERATURE OPERATION INSTRUCTION ..........................................................19
AUTO START OPERATION INSTRUCTION ............................................................................21
AUTO STOP OPERATION METHOD ........................................................................................23
PROGRAMMED OPERATION METHOD......................................................................................26
To choose program menu function ...............................................................................................29
TO MAKE OUT NEW PROGRAM...............................................................................................31
TO EDIT PROGRAM ....................................................................................................................32
TO EDIT SEGMENT ....................................................................................................................33
TO ADD SEGMENT......................................................................................................................37
TO FINISH PROGRAM EDITING ..............................................................................................38
TO DELETE PROGRAM ..............................................................................................................39
HANDLING METHOD OF FUNCTION MENU ............................................................................40
To select function menu item........................................................................................................40
TO SET UP TIMER MODE.............................................................................................................43
TO SET UP KEYLOCK MODE.......................................................................................................44
TO SET UP BUZZER MODE ..........................................................................................................45
CALIBRATION OFFSET FUNCTION ...........................................................................................46
SETTING THE CALIBRATION OFFSET FUNCTION .................................................................47
TO CHECK ACCUMULATED OPERATION TIME.......................................................................48
TO ADJUST TIME..........................................................................................................................49
TO MODULATE FAN BLADE (OPTION) ......................................................................................51
TO MODULATE DAMPER (OPTION) ...........................................................................................52
SETTING THE COMMUNICATION LOCKOUT (OPTION) .........................................................54
INDEPENDENT OVERHEAT PREVENTION...............................................................................55
Activation/Setting Method ............................................................................................................55
Precautions ....................................................................................................................................55
MAINTENANCE AND INSPECTION............................................................................................56
Daily check/care.............................................................................................................................56
LONG STORAGE AND DISPOSAL................................................................................................56
AFTER SERVICE AND WARRANTY.............................................................................................57
TROUBLESHOOTING ...................................................................................................................57
MEASURE.......................................................................................................................................58
SCHEMATICS.................................................................................................................................59
REPLACEMENT PARTS TABLE...................................................................................................64

1
SAFETY PRECAUTIONS
Explanation of pictograms
About pictograms
A variety of pictograms are indicated in this operating instruction and on
products for safe operation. Possible results from improper operation
ignoring them are as follows.
Be sure to fully understand the descriptions below before proceeding to the
text.
Warning
Caution
Indicates a situation which may result in minor injury (Note 2) and
property damages (Note 3.)
（Note 1）Serious injury means a wound, an electrical shock, a bone fracture or intoxication that may
leave after effects or require hospitalization or outpatient visits for a long time.
（Note 2）Minor injury means a wound or an electrical shock that does not require hospitalization or
outpatient visits for a long time.
（Note 3）Property damage means damage to facilities, devices and buildings or other properties.
Meanings of pictograms
This pictogram indicates a matter that encourages the user to adhere to warning
(“caution”included).
Specific description of warning is indicated near this pictogram.
This pictogram indicates prohibitions
Specific prohibition is indicated near this pictogram.
This pictogram indicates matters that the user must perform
Specific instruction is indicated near this pictogram.
Indicates a situation which may result in death or serious injury (Note 1.)

2
EXPLANATIONS ABOUT SYMBOL MARKS
Symbol mark table
Warning
Warning,
generally
Warning,
high voltage
Warning,
high temperature
Warning,
drive train
Warning,
explosive
Caution
Caution,
generally
Caution,
electrical shock
Caution,
scald
Caution,
no road heating
Caution,
not to drench
ONLY
WATER
Caution,
water only
Caution,
deadly poison
Prohibit
Prohibit,
generally
Prohibit,
inflammable
Prohibit
to disassemble
Prohibit
to touch
Compulsion
TAL
HORIZON-
Compulsion,
generally
Compulsion,
connect to the
grounding terminal
Compulsion,
install on a
flat surface
Compulsion,
disconnect the
power plug
Compulsion,
periodical
inspection

3
EXPLANATIONS ABOUT SYMBOL MARKS
Warning・Cautions
WARNING
Prohibit to use in the following locations, where a flammable or explosive gas is present.
Never to use this product in the locations as a flammable or an explosive gas is present.
If not, it may cause a fire or an explosion, because this product is not expansion-proof.
Always connect the protective grounding wire to the ground.
Connect the ground-line correctly. This could cause a fire or an electrical shock due to
leakage.
Prohibit to use in unusual operation.
If the smoke or unusual smell come up, turn-off the power switch immediately and disconnect
the power plug from the receptacle. This could cause a fire or an electrical shock.
Do not use the power cord tie up in a bundle.
This could cause to a fire from overheating of the power cord.
Do not injure the power cord.
Do not bend or twist or tug the power cord forcibly. This could cause a fire or an electrical
shock.
Do not use samples containing a flammable or explosive substance.
Never to use samples containing a flammable or explosive substance. This could cause a fire
or an explosion.
Do not disassemble and make modifications this product.
Do not disassemble and make modifications this product. This could cause a failure or a fire
or an electrical shock.
Never try to touch a hot part.
Do not touch the door during or immediately after operation. Severe burning injury may be
caused due to the high temperature.
CAUTION
When thunder is coming.
When it thunders, turn off the power switch immediately. This could cause a failure or a fire
or an electrical shock.

4
BEFORE USING IT
To install and preparation before using
WARNING
1. Always ground the unit
Be sure to connect the earth wire (the green cable of power cord) to the grounding
conductor or ground terminal to prevent accidents caused by electric leakage.
Ask the nearest electrical contractor for the power including the connecting work. The
setting (connecting) work is performed following the related electrical equipment
technical standard published by the corresponding country to be used this unit.
Electrical specifications of ModelDF811/DF1011 and DH811/DH1011 are 3-phase 220V.
Connect to a distribution board or 220V outlet surely.
2. Choose a proper place for installation.
Do not install the oven in a place where:
・Flammable gas or corrosive gas is generated.
・Ambient temperature exceeds 35℃
・Ambient temperature fluctuates violently.
・There is direct sunlight.
・There is excessive humidity.
・There is a constant vibration.
Keep the following clearance around the oven.
3. Operation with ventilation
When using this machine with ventilation (with Damper opened) it is required to make sure
of full ventilation around the place. Without enough ventilation around the machine a hot
air from its exhaust opening will raise room temperature or the room can be filled with
smoke and gas discharged from its materials. Therefore do not forget to connect an exhaust
duct at its exhaust opening in order to discharge a blast wind outside. We can offer exhaust
pipe flange and exhaust dust as an option by request.
1m and more
60 cm
and more
60 cm
and more
1m and more

5
BEFORE USING IT
REQUIREMENTS FOR INSTALLATION
WARNING
4. Choose a correct power distribution board.
・Choose a correct power distribution switchboard or receptacle that meets the oven’s
rated electric capacity.
Electric capacity：
Model DF811
AC220V
3-phases
16.5A
Model DF1011
AC220V
3-phases
22A
Model DH811
AC220V
3-phases
24A
Model DH1011
AC220V
3-phases
33A
・Do not connect the oven to an outlet that differs from the above specifications because a fire or
electrical shock will occur.
5. Supply connections for the oven
・Request the supply connection for the 3-phases 220V specifications from a licensed
electrician.
・Failure to have this operation complete by certified personnel will cause a fire or
electrical shock during Oven operations.
6. Do not use the unit in an area where there is flammable or explosive gas.
・Never use the unit in an area where there is flammable or explosive gas. The unit is
not explosion-proof. An arc may be generated when the power switch is turned ON or
OFF, and fire/explosion may result.
可燃性ガス
爆発性ガス
Explosive gas
Flammable gas

6
BEFORE USING IT
REQUIREMENTS FOR INSTALLATION
WARNING
7. Do NOT make modifications
to the product
TAL
HORIZON-
8. Installation on flat surface
Modification of the product is strictly
prohibited. This could cause a failure
Install the product on a flat surface.
Unanticipated problems or failures may occur
otherwise.
CAUTION
After installed, you should:
It may cause injury to a person if this oven falls down or moves by the earthquake or the
impact, etc. To prevent, take measures that the unit cannot fall down.
Modification

7
BEFORE USING IT
REQUIREMENTS FOR INSTALLATION
CAUTION
Handling of power code.
Do not use the power cord if it is bundled or tangled. If it is used in this manner, it
can overheat and fire may be caused.
Do not process, bend, wring, or stretch the power cord forcibly. Fire or electrical shock
may result.
Do not put the power cord under the desk, chair, etc., or through an object. Fire or
electrical shock may be caused.
Do not run the power cord next to heating equipment such as a heater. The cover of
the cord may melt and fire or electrical shock may result.
When the power cord is damaged (exposure of the core wires, disconnection, etc.), turn
off the power key right immediately, then turn off the circuit breaker and the main
power. Contact customer service for a replacement immediately. If this procedure is
not followed, fire or electrical shock may be caused.
Connect the power cord to a adequate distribution board or outlet.
Caution for setting shelves
Do not use any shelves but the attached ones.
If it is used in this manner, the oven cannot occasionally regulate temperatures
properly.
Put the attached shelves on the shelf brackets fitted to the chamber when you use the
oven.

8
PRECAUTIONS IN HANDLING
WARNING
Substances that can not be used
Never use explosive substances, flammable substances or substances that include
explosive or flammable ingredients in the unit. Explosion or fire may occur. (Please
refer to “List of dangerous materials” on page 65.)
Prohibition of use for error
If a smoke or abnormal smell may be occurred, turn off the power switch of the main unit
immediately, and turn off the original power source, and finally contact to either the dealer
you purchased this unit or our sales office. Leaving the failure may cause the fire or
electric shock. Since the repairing of this unit is dangerous for non-specified service
person, never repair the unit by the customer himself.
Do not put the foreign substances in the oven
Do not put a foreign substances such as metals or flammable substances in the opening
of the unit (ventilation hole, exhaust port, etc.). If this procedure is not followed, fire,
electrical shock or burn may result.
If the foreign substances enter the unit, turn off the circuit breaker immediately and
contact a service technician for inspection. If this procedure is not followed, fire,
electrical shock or burn may result.
Caution for handling samples
During and immediately after operation, the internal surfaces of the chamber and the
door are extremely "HOT". To prevent injury, take out the samples when the chamber
has cooled down or wear gloves while the chamber is still hot.
When you open the door during working at the high temperature.
Do not touch the internal surfaces of the chamber and the door when you will open the
door, because they are extremely hot.
To open the door while the chamber is still hot may cause the malfunction of a fire
detector if it is installed near the oven.
Do not touch heated parts.
Do not touch the door and exhaust port during or immediately after operation. Severe
burning injury may be caused due to the high temperature

9
PRECAUTIONS IN HANDLING
CAUTION
1. When operating the unit for the first time
When you use the unit for the first time, a strange odor may generate at a higher
temperature. This is due to decomposed binding agent contained in the heat insulator and
does not indicate a malfunction of the unit.
2. If you fully open the exhaust duct
The maximum operating temperature will not be reached if you fully open the exhaust
duct.
3. When processing a sample that contains moisture
When you want to process a sample that contains moisture, open the exhaust damper;
raise the temperature to remove moisture. When water exists inside the unit, an electric
shock or a malfunction of the unit may result.
4. About processing of a sample
To improve temperature distribution within the bath, the unit employs air blow
circulation. When processing powder sample or a small sample, make sure that the
sample will not scatter. Entering of a flammable material or a metal into the heater
assembly may cause a fire or an electric shock.
Some time may be necessary for the temperature to rise when processing a large amount
of sample or a sample with a larger thermal load. Confirm a correct amount as necessary
and set the sample. Note that the indicated temperature may become unstable when
processing a heat-generating sample [note however, the sample must be free of risk of
explosion, firing, or ignition of itself (whose density is less than the explosion limit
density).
5. Distribute samples
The withstand load of each shelf board included with the unit is about 30kg. Do not put
any sample that exceeds this load.
Set two or more samples as dispersed as possible.
If a shelf is congested with samples, the oven occasionally cannot regulate temperatures
properly. To ensure the oven’s temperature accuracy, there should be open space of at
least 30% on each shelf.
6. Do not climb on the oven
Do not climb on top of the oven because it will fall down and break. Failure to observe
this caution may cause injury to a person

10
PRECAUTIONS IN HANDLING
CAUTION
7. Do not put anything on the oven
Do not put anything on top of the oven because they will fall and result in injury to a
person.
8. During a thunder storm
During a thunder storm, turn off the power key immediately, then turn off the circuit
breaker and main power. If this procedure is not followed, fire or electrical shock may
be caused.
9. When having a blackout
Once the power supply is recovered, the oven can resume when it stopped because of
having a blackout.
10. About independent overheat preventive unit
Be sure to set the independent overheat preventive unit for safety. Set the
temperature of the independent overheat preventive unit to a temperature +15℃or
more higher than that of the temperature controller.
11. About the operating temperature range
Always operate the unit within the specified operating temperature range.
DF811/1011:40 to 200℃
DH11/1011:40 to 300℃
Operating the unit outside the operating temperature range may cause a malfunction
or an unexpected accident.
12. About the operating procedures
Always operate the unit following the procedures specified in this operation manual.
Operating the unit other than the way indicated in the operation manual may cause a
trouble. Note that operating the unit other than the way indicated in the operation
manual will void the product warrantee.

11
PRECAUTIONS IN HANDLING
CAUTION
13. Do not place any samples on the bottom of the chamber
Do not place any samples on the bottom of the chamber to heat, because it affects the
temperature control of the oven. Always put the samples on the attached shelves.
Place sample so that it does not touch the interior wall of the chamber. Set the
shelves on the shelf brackets that will accommodate the size of the sample.
14. Never use corrosive samples
Stainless steel is used for major passage of circulating air. However, strong acid
occasionally corrodes even stainless steel. Besides this, the silicone rubber packing is
also vulnerable to acid, alkali, oil and halogen’s solvent.
15. When you open and shut the door
Do not put your hand either face near the door when you open and shut the door.
Failure to observe this caution may result in injury because the door hits your hand
or face.
16. When using the cable port
When you have inserted a measurement sensor or a probe into the cable port, close
the cover to the maximum extent possible and then securely seal it with
heat-resistant packing or sealant taking care not to leave any gaps. Insufficient seal
will degrade temperature characteristics or other performances.

12
SAFETY DEVICES AND ERROR CODES
Purposes and Operations of Safety Device and Counter-measures
When an abnormal condition occurs, an error code is displayed in the main display. Immediate
action should be taken according to the specific counter-measures.
Er. No
Error name
Main Display
Sub display
Er.00
Communication Er
Communication Er
Ex ａconnection
Er.01
Sensor Error
Sensor Error
Calls a service
Er.02
SSR Error
SSR Error
Calls a service
Er.03
Heat Error
Heat Error
Calls a service
Er.04
Fan Error
Fan Error
Calls a service
Er.05
Auto-damper Er
Auto-damper Er
Calls a service
Er.07
Overheat Error
Overheat Error
Calls a service
Er.08
Controller Er
Controller Er
Calls a service
Er.10
Main relay Er
Main relay Er
Calls a service
Er.14
RAM Error
Controller Er
Calls a service
Er.15
EEPROM Error
Controller Er
Calls a service
How to manage
●In case these error code mentioned above is displayed, recode the error code and shut
off the power immediately.
●In case “Er14”is displayed, once turn off a circuit breaker. Then, after more than 30
seconds, turn on the breaker again. In case “Er14”is still displayed even after the
breaker is turned on, then contact a customer support center.
●In case any abnormal condition occurs, parts replacement or device inspection should
be taken. Contact a customer support center. In contacting, never fail to inform of
error number. Refer to P 57 (AFTER SERVICE AND WARRANTY).

13
DESCRIPTION AND FUNCTION OF EACH PART
Main unit
Exhaust damper
Cable port
Exhaust
port
Heater
maintenance door
Power cable
Handle
Control panel
Door
Circuit
breaker

14
DESCRIPTION AND FUNCTION OF EACH PART
Control Panel
ERROR
℃
DOOR
Standby
End
Heater
Fan
Fixed temp
Auto-start
Auto-stop
Program
1 2 3 4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
POWER
MEMUPROGRAMMODE
No.
Name
Description
1
MODE key
Key to select a function from program input, edit,delete modes,hour/time setting,
change-over mode, and other functions.
2
PROGRAM key
Starting/Closing of program menus
3
MENU key
Key to select the operation mode. Each mode of fixed temprature,
auto-start,auto-stop and program operation can be selected.
4
POWER key
Key to change over the controller from the standby mode to the operation mode or
from the operation mode to the standby mode.
5
Jog dial
Key to select menu items, compile parameters, etc.
6
Main Display
It displays temperatyre measurements,set values (temperature, time, hour, etc.),
program information, error information, etc.
7
Sub Display
It displays set temperture, remaining time, current hour and execution segment
No. etc.
8
℃lamp
It comes ON when displaying temperature of the inside of tank at main display
9
ERROR lamp
It comes ON when any trpuble within equiment.
10
DOOR lamp
It comes ON to indicate that door is being opened. (not provided on this unit).
11
STANDBY lamp
It comes ON in the standby mode and blinks in the preoperational state.
12
END lamp
It blinks at the end of auto-stop/program operation.
13
HEAT lamp
The lamp comes ON when the heater is energized.
14
FAN lamp
The lamp comes ON when the fan is energized.
15
FIXED-TEMP
It comes ON while it is operated at fixed temperature. It blinks when operation
mode is selected.
16
AUTO-START
It comes ON to indicate that auto start is carried out. It blinks when operation
mode is selected.
17
AUTO-STOP
It comes ON to indicate that auto stop is carried out. It blinks when operation mode
is selected.
18
PROGRAM lamp
It comes ON to indicate that program operation is carried out. It blinks when
operation mode is selected.

15
PREPARATION AND CHECK BEFORE USING
Warning
Never fail to connect earth (green core wire of power supply code) with your grounding wire or
grounding terminal part in order to avoid electric shock.
・Don’t connect earth to gas pipe or water main.
・Don’t use forked plug receptacle since it can cause heat generation etc.
・Don’t install it at place where inflammable gas or corrosive gas breaks out.
Caution
Plug receptacle check
・Connect power supply code to proper switch board or plug receptacle.
Safety check
・Make sure that independent overheat prevention is set 15℃higher than the temperature
of its inside to be used.
Charge check
・In order to charge battery for date back-up, in case of new installment or circuit breaker is
off for many hours, turn on the breaker and keep the equipment with electricity on and
have it for more than 25 hours.

16
POWER ON/OFF
Turn the circuit breaker on.
・When power supply is off, present date and time are shown on sub display.
※Clock is not set correctly when it is forwarded from factory. Refer to page 49 for
handling and adjust date and time accordingly.
Push the POWER key
1999-09-17 12:00
待機
終了
ヒータ
ファン
FIXED TEMP
AUTO START
AUTO STOP
PROGRAM
POWER
MODEPROGRAMMENU
・After short sound of beep, power supply is turned on.
Standing by
1999-09-17 12:01
℃
STANDBY
END
HEATER
FAN
FIXED TEMP
AUTO START
AUTO STOP
PROGRAM.
電源
運転メニュープログラム機能メニュー
・After power supply is turned on, fan starts to spin and “fan lamp” flashes. Main display
indicates temperature of the inside of tank and “℃lamp”flashes. Sub display indicates
“standing by” and “standing by lamp”flashes. This is “On standby”state.
・When you press “POWER” key again, the power will be turned off.
・In case of first use, power supply of the equipment is still off. If you turn off short circuit
breaker while using or main power supply is shut out because of power failure, it will be
restored to the condition which main power supply is yet to be shut out. This is
“Instantaneous suspension recovery function”.

17
METHOD OF OPERATION MENU
Four kinds of “Operation modes” as follows
No.
Operation mode
Function
1
FIXED-TEMP
It is a operation method to bring the oven to the desired temperature and keep it steady.
2
AUTO-START
It is a operation method to start a fixed temperature operation when reached the set time
or hours.
3
AUTO-STOP
It is a operation method to stop the fixed temperature operation when reached the set
time or hours.
4
PROGRAM
It is a operation method that can start or stop a operation either when reached the set
time or hours. Moreover, it can change the temperature when reached time and repeat
to do that.
Selection of operation mode
・Confirm that a power supply is on.
1. Push the MENU key
ﾀｲｷﾁｭｳ
1999-09-17 12:02
定値運転
ｵｰﾄｽﾀｰﾄ
ｵｰﾄｽﾄｯﾌﾟ
ﾌﾟﾛｸﾞﾗﾑ運転
MENU
・Operation menu starts and becomes an Operation mode choice screen.
Fixed temp OP.
OP.mode choice
STANDB Y
END
HEAT
FAN
FIXED TEMP
AUTO START
AUTO STOP
PROGRAM
・On operation mode choice screen, you can see blinking display at sub display which
indicates the name of operation mode currently selected, and operation lamp blinks
correspondingly.
※When the equipment is used for the first time, fixed temperature operation mode is
already selected. Other than that case, the operation mode that is carried out in the last
use will be selected.
No.
Operation mode
Indicate lamp
Sub display
1
Fixed temp OP.
Fixed temp Lamp
Fixed temp OP.
OP. mode choice
2
Auto-start OP.
Auto start Lamp
Auto-start OP.
OP. mode choice
3
Auto-stop OP.
Auto stop Lamp
Auto-stop OP.
OP. mode choice
4
Program OP.
Program OP. Lamp
Program OP.
OP. mode choice