Yamato DP43 Vacuum Drying Oven

Yamato DP43 Vacuum Drying Oven
INSTRUCTION MANUAL
FOR
VACUUM DRYING OVENS
Models:
DP23
DP33
DP43
DP63
Version 4
Yamato Scientific America Inc.
Santa Clara, CA
Congratulations on your selection of Yamato Scientific’s DP Vacuum Drying Oven Series!
Please read these operating instructions, user notes and the warranty card thoroughly before the
initial operation of your VACUUM drying oven. This will ensure proper operating procedures and
extended life for the unit. Please keep the operating instructions together with the warranty card
for easy access whenever you need them.
Attention: Read the warnings in the operating instructions carefully to familiarize
yourself with the initial operation of your Vacuum drying oven.
Depending on the extent and nature of danger, the warnings given in these operating instructions
are classified into the following two categories by symbol.
To protect operators from accident -Negligence of this warning may result in a serious accident.
To protect the VACUUM Drying Oven from damage -Negligence of this warning may result in damage to the Vacuum Drying Oven.
This warning also gives you tips on performance that are useful in its operation
and maintenance or indicates the common mistakes that operators often make.
TABLE OF CONTENTS
EXPLANATION OF PICTURE DISPLAY ...................................................................................................1
CAUTIONS IN USING WITH SAFETY.......................................................................................................2
NOTES TO USERS........................................................................................................................................4
DESCRIPTION AND FUNCTION OF EACH PART...................................................................................4
Main unit (Model DP23/33) .......................................................................................................................4
Main unit (Model DP43/63) .......................................................................................................................5
Control Panel ..............................................................................................................................................6
REQUIREMENTS FOR INSTALLATION...................................................................................................8
PRECAUTIONS IN HANDLING................................................................................................................14
OPERATING PROCEDURE .......................................................................................................................18
FIXED TEMPERATURE OPERATION INSTRUCTIONS.......................................................................19
AUTO START OPERATION INSTRUCTIONS .........................................................................................20
AUTO STOP OPERATION METHOD ..................................................................................................................21
PROGRAMMED OPERATION METHOD .............................................................................................................23
SWITCHING FROM ONE OPERATION TO ANOTHER .........................................................................24
METHOD OF USING DISPLAY KEY........................................................................................................25
USAGE OF MODE.......................................................................................................................................26
CONTENT OF FUNCTION MENU.......................................................................................................................26
CALIBRATION OFFSET FUNCTION ..................................................................................................................27
Outline of Function ..................................................................................................................................27
Setting The Calibration Offset Function ................................................................................................28
SAFETY DEVICES AND ERROR CODES ................................................................................................29
PURPOSES AND OPERATIONS OF SAFETY DEVICE AND COUNTER-MEASURES................................................29
INDEPENDENT OVERHEAT PREVENTION .........................................................................................30
MAINTENANCE AND INSPECTION .......................................................................................................31
MAINTENANCE PROCEDURE ..........................................................................................................................32
LONG STORAGE AND DISPOSAL......................................................................................................................32
AFTER SERVICE AND WARRANTY ........................................................................................................33
IF A SERVICE CALL IS REQUIRED: ..................................................................................................................33
TROUBLESHOOTING................................................................................................................................34
SPECIFICATIONS ......................................................................................................................................35
WIRING DIAGRAM ....................................................................................................................................37
(DP23/33) - AC 115V ....................................................................................................................................37
(DP43/63) - AC 220V ....................................................................................................................................38
HEATER DETAILS .....................................................................................................................................39
REPLACEMENT PARTS TABLE...............................................................................................................40
DP23 .............................................................................................................................................................40
DP33 .............................................................................................................................................................40
DP43 .............................................................................................................................................................41
DP63 .............................................................................................................................................................41
REFERENCE ...............................................................................................................................................42
HAZARDOUS MATERIAL..........................................................................................................................42
EXPLANATION OF CHARACTER ON THE DISPLAY ............................................................................................43
BEHAVIOR AFTER POWER RESTORATION .........................................................................................44
FLOWCHART OF OPERATIONAL PROCEDURES ................................................................................45
RUN “MENU”................................................................................................................................................45
PROGRAM “MODE” .......................................................................................................................................46
FLOWCHART FOR PROGRAMMING ...................................................................................................................47
REFERENCE DATA....................................................................................................................................48
Explanation of picture display
MEANING OF ILLUSTRATED SYMBOLS
Illustrated
Symbols
Various symbols are used in this safety manual in order to use the unit
without danger of injury and damage of the unit. A list of problems
caused by ignoring the warnings and improper handling is divided as
shown below.
Be sure that you understand the warnings and cautions in this manual
before operating the unit.
If the warning is ignored, there is the danger of a problem that may
cause a serious accident or even fatality.
If the caution is ignored, there is the danger of a problem that may
cause injury/damage to property or the unit itself.
Meaning of Symbols
This symbol indicates items that urge the warning (including the
caution).
A detailed warning message is shown adjacent to the symbol.
This symbol indicates items that are strictly prohibited.
A detailed message is shown adjacent to the symbol with specific
actions not to perform.
This symbol indicates items that should be always performed.
A detailed message with instructions is shown adjacent to
1
the symbol.
Cautions in using with safety
WARNING
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.
Always ground the unit.
Always ground the unit on the power equipment side in order to avoid electrical shock due to a
power surge.
If a problem occurs, you should:
If smoke or strange odor should come out of the unit for some reason, turn off the power key
right away, then turn off the circuit breaker and the main power. Immediately contact a
service technician for inspection. If this procedure is not followed, fire or electrical shock may
result.
Never perform repair work yourself, since it is dangerous and not recommended.
Do not use the power cord if it is bundled or tangled.
Do not use the power cord if it is bundled or tangled.
overheat and fire may be caused.
If it is used in this manner, it can
Do not process, bend, wring, or stretch the power cord forcibly.
Do not process, bend, wring, or stretch the power cord forcibly.
result.
Fire or electrical shock may
Do not put the power cord under the desk, chair, etc.,
Do not put the power cord under the desk, chair, etc., or through an object.
shock may be caused.
Fire or electrical
Do not run the power cord next to heating equipment such as a heater.
Do not run the power cord next to heating equipment such as a heater.
may melt and fire or electrical shock may result.
2
The cover of the cord
WARNING
Substances that can not be used.
Never use explosive substances, flammable substances and substances that include explosive
or flammable ingredients in the unit. Explosion or fire may occur.
Do not disassemble or modify the unit.
Do not reconfigure the unit.
Fire or electrical shock may be caused.
Do not touch the door or window during or immediately after operation.
Do not touch the door or the window during or immediately after operation.
injury may be caused due to the high temperature.
Severe burning
CAUTION
During a thunder storm . . .
During a thunder storm, turn off the power key immediately, then turn off the circuit breaker
and the main power. If this procedure is not followed, fire or electrical shock may be caused.
Periodic check of the safety component.(Only DP43/63)
The independent temperature over-rise prevention device is important safety component.
sure to inspect it periodically. (See Chapter on Maintenance & Inspection.)
3
Be
Notes to Users
DESCRIPTION AND FUNCTION OF EACH PART
Main unit (Model DP23/33)
Observation window
Vacuum gauge
Door handle
Control panel
Purge valve
(When turned clockwise, the valve
is closed)
Power switch
(Circuit breaker)
Vacuum valve
(When turned clockwise,
the valve is closed)
4
Main unit (Model DP43/63)
Observation window
Door handle
Purge valve
(When turned clockwise, the valve
is closed)
Vacuum valve
(When turned clockwise,
the valve is closed)
Vacuum gauge
Control panel
Purge port
Power code
(220V Plug not attached)
5
Power supply switch
with a circuit breaker
Control Panel
⑪
⑪f
⑪
⑪e
⑪b
⑪c
⑪
⑯
⑭
⑫
⑨
②
①
④
③
⑮
⑤
⑧
(1) POWER key:
(2) MODE key:
(3) DISPLAY key:
(4) MENU key:
(5) ENTER key:
(6)/(7)
(UP/DOWN) key:
(8) ESCAPE
key:
(9) Main Display:
(10)Sub Display:
(11)Operation monitor:
a) (11) STANDBY lamp:
b) (11) Temperature
pattern lamp:
c) (11) OVER lamp:
d) (11) TROUBLE
indicator lamp:
⑥⑦
⑩
⑬
Key to change over the controller from the standby mode to the
operation mode or from the operation mode to the standby mode.
Key to select a function from program input, edit, delete modes,
hour/time setting, change-over mode, and other functions.
Key to change-over the display content of the sub display (10).
Display content is changed over to set temperature, remaining
time, hour, execution segment No.
Key to select the operation mode. Each mode of fixed
temperature, auto-start, auto-stop and program operation can be
selected.
Key to determine the input value of set value (temperature, time,
hour, etc.), selection mode, execution segment No. etc.
Key to change set value (temperature, time, hour, etc.) and to
choose a selection from various parameters on the function menu.
Key to cancel the latest entry and recover the status that was valid
prior to the making the latest selection.
It displays temperature measurements, set values (temperature,
time, hour, etc.), program information, error information, etc.
It displays set temperature, remaining time, current hour and
execution segment No. etc.
It indicates an operation mode.
It flashes to indicate that the instrument is in the preoperational
standby mode.
It illuminates to indicate the heat treatment process pattern
executed by the controller with flashing light indicating the point
currently in execution.
It flashes to indicate the end of auto-stop or program operation.
It blinks when an error is detected and displays the corresponding
code for that particular problem.
6
e) (11)REMOTE operation
indicator lamp:
f) (11)KEY LOCK
indicator lamp:
(12)Operation menu
indicator lamp:
(13)Sub display menu
indicator lamp:
(14)HEAT ON indicator
lamp
(15)TIME indicator lamp:
(16)Independent
Temperature
Overheating Prevention
Device:
It illuminates when the instrument is put into remote operation
(optional) and displays the word “REMOTE.”
It illuminates to indicate that the operation panel key lock function is
in operation.
It illuminates to indicate the active operation mode in the operation
menu.
It illuminates to indicate the item (set temperature, remaining time,
hour or execution segment) shown in the sub display.
It illuminates when the heater is on.
It illuminates when the operation starting time of the auto-start and
the operation completion time of the auto-stop is set in the hour
setting mode.
Setting the instrument to the operational temperature of the
independent over rising prevention.
7
REQUIREMENTS FOR INSTALLATION
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.
Explosive gas
Flammable gas
Always ground the unit.
z Connect the Oven’s power plug to a receptacle with grounding connectors.
z Do not forget to ground the Oven, to protect you and the unit from electrical shock
in case of power surge. Choose a receptacle with grounding connectors as often
as possible.
z Do not connect the grounding wire to a gas pipe, or by means of a lightning rod or
telephone line. A fire or electrical shock will occur.
115V receptacle with grounding terminals
Power plug
z If only bipolar receptacles are available for the oven, connect an optional
grounding adapter to the oven’s power plug. Check the polarity of the receptacle
before connecting the adapter to the receptacle. Connect the adapter’s
grounding wire (green) to a grounding terminal to the power supply. Contact our
sales representative in your vicinity or our service center for additional information
or assistance.
115V bipolar receptacle
Grounding wire
z Connect the proper power supply for any other equipment (vacuum pump, etc.) for
this oven. When connecting the other equipment to the same power supply as
this oven, be sure that there is enough power for both units.
NOTE:
Neither of DP43/63 oven has a plug connected because of the 220V
specification. Select a plug suitable to this capacity and connect it.
8
Choose a correct power distribution board or receptacle.
z Choose a correct power distribution board or receptacle that meets the oven’s
rated electric capacity.
Electric capacity
DP23: 115 VAC, 6A
DP33: 115 VAC, 9.5A
DP43: 220 VAC, single phase 10.5A
DP63: 220 VAC, single phase 14.5A
z Do not connect the oven to an outlet that differs from the above specifications
because a fire or electrical shock will occur.
Supply connections for Model DP43/63
z For Model DP43 and DP63 (220V) -- Request the supply connection for the 220V
specifications from a licensed electrician.
z Failure to have this operation complete by certified personnel will cause a fire or
electrical shock during Oven operation.
Install the Oven on a level area.
z Do not installation the oven on a non level surface. This will cause hazards to the
operator and create problems during actual operation.
9
Choose a proper place for installation.
z Do not install the oven in a place where:
♦
♦
♦
♦
♦
♦
Flammable gas or corrosive gas is generated.
Ambient temperature exceeds 35°C.
Ambient temperature fluctuates violently.
There is direct sunlight.
There is excessive humidity and dust.
There is constant vibrations.
z Keep the following clearance around the oven.
More than15
More than 20 cm
More than15
DP23: More than 31
cm
DP33: More than 42
cm
DP43: More than 58
When installing DP43/63, adjust both right and left adjusters and raise the two front
castors from the floor after setting the unit. Then secure the adjusters with nuts.
After installed, you should:
z It may cause injure to a person if this oven fall down by the earthquake and the
impact, etc..
z To prevent, take measures that the unit cannot fall down.
10
Connecting a vacuum pump
z Appropriate vacuum pumps for the ovens and the necessary plumbing parts for
connecting are listed in the Table below. Referring to this Table, select an
appropriate vacuum pump with the necessary plumbing parts. The vacuum pump
should have a back current prevention valve attached. Also, the plumbing parts
are assembled as optional parts at our facility to comply with your request. (Refer
to the Chapter “Options.”)
z Be sure to connect the vacuum port of the oven to the suction port of the vacuum
pump with the prescribed plumbing parts to prevent air leakage.
z There is a special storage compartment for a vacuum pump in the lower portion of
the DP43/63 ovens. When putting a vacuum pump in this storage compartment,
install it properly so that the oil gauge of the vacuum pump can be seen easily from
the front of the oven.
z If you select the vacuum pump cart (the exclusive option for the DP43/63 ovens),
refer to the instruction manual for the vacuum pump cart and release the bottom
board from the unit to store the pump cart in the unit. Before arranging a vacuum
pump, be sure that it can be stored in the unit.
NOTE: The vacuum pump cart is designed to place a rotary pump up to the following
size.
DP43/63 : L 520 mm × W 200 mm × H 280mm
Before purchasing the vacuum pump cart, be sure that your vacuum pump fits the
cart .
Contact our sales or service representative, for further information.
Suitable Displacement Of Vacuum Pump For The Vacuum Oven And Necessary Plumbing Parts
Item
Appropriate Displacement
of vacuum pump (L/min)
Nipple/Suction Port
of Vacuum Pump
Req. Plumbing Parts
50 ∼135
φ3/4”(19mm)
Vacuum rubber tube, I.D. 5/8”(15.8mm): 1 pc.
φ28mm
Vacuum rubber tube, I.D. 5/8”(15.8mm): 1 pc.
Vacuum rubber tube, I.D. 1”(25mm): 1 pc.
Reducer A or C( φ18mm/φ30mm):
1 pc.
Flexible hose: 1pc.
Clamp(NW20/35): 2pc.
Center Ring (NW25): 2pc.
Vacuum Oven
DP23/33
(Vacuum connection
port : φ18mm)
DP-43/63
(Vacuum connection
port : NW25)
135 ∼ 260
NW25 or KF25
flange
φ28mm
Vacuum rubber tube, I.D. 1”(25mm):
Rubber tube adapter:
Clamp (NW20/25):
Center ring (NW25):
1 pc.
1 pc.
1 pc.
1 pc.
NOTE: When the connecting port of the oven differs in diameter from the suction port of the
vacuum pump, be sure to connect them with the appropriate adapter.
11
Pump and Necessary Plumbing Parts
Port for connecting Model DP23/33
ovens to vacuum pump
O.D. φ18 mm
Port for connecting Model DP43/63
ovens to vacuum pump
NW25 flange
Clamp
Vacuum hose
(I.D. φ15mm)
Clamp
Centering
ring
Centering
ring
Hose adapter
(O.D.φ28mm)
Flexible tube with
NW25 flange
(Stainless steel)
Reducer A or C
(O.D.φ18/φ30mm)
Vacuum hose
(I.D. φ25mm)
Clamp
Vacuum hose
(I.D. φ25mm)
Centering ring
Inlet : φ30mm
Inlet : φ30mm
Rotary vane vacuum pump
12
Inlet : NW25 flange
Handling of power code.
z Do not use the power cord if it is bundled or tangled.
can overheat and fire may be caused.
If it is used in this manner, it
z Do not process, bend, wring, or stretch the power cord forcibly.
shock may result.
Fire or electrical
z Do not put the power cord under the desk, chair, etc., or through an object.
or electrical shock may be caused.
z Do not run the power cord next to heating equipment such as a heater.
cover of the cord may melt and fire or electrical shock may result.
Fire
The
z 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.
Caution in setting shelves
z Do not use any shelves but the attached ones.
If it is used in this manner, the oven cannot occasionally regulate temperatures
properly.
z Put the attached shelves on the shelf brackets fitted to the chamber when you use
the oven.
13
Precautions in handling
Substances that can be used
z Never use explosive substances (shown on page 42) , flammable substances
(shown on page 42) and substances that include explosive or flammable
ingredients in the unit. Explosion or fire may occur.
z Because copper piping is used for the plumbing, avoid using corrosive substances
such as acid, alkali, halogen class, amine class, ester, etc.
z Because silicone rubber is used for the door packing, benzoic acid (used in the
rubber manufacturing process) and rubber volatile matter will be generated while
the oven is in operation. When using a sample that is affected by these
substances, use the optional Viton packing.
NOTE: The silicone rubber for the standard door packing and fluorocarbon rubber (Viton)
for the optional door packing are affected by the substances that are shown in the
following Table. Therefore, never dispose of those substances and the samples
containing such substances. Inquire about the possibility of using the other
substances shown in the Table.
Typical Example of Substance That Affects Door Packing
Material/
Classification
Carbohydrate
Halogen,
Halogen
Carbohydrate
Ketone, Aldehyde
Ester
Ether
Alcohol
Polyhydric Alcohol
Derivative
Fatty acid, Phenol
Nitrogen compound
Sulfur, Phosphorus
Compound
Other Compound
Inorganic Solvent
Silicone Rubber
Fluorocarbon Rubber
Butane, Isooctane, Benzene, Toluene,
Xylene, Styrene, Diphenyl, Pinene, Kerosene
Methyl Chloride, Methylene Chloride,
Chloroform, Carbon tetrachloride,
Trichlorethylene, Phlorobenzene,
Monochlorobenzene, Chlorotoluene,
Chloronaphthalene, R-11, R-12, R-21, R-22,
R-113, R-114, Bromine
Methyl Ethyl Ketone, Diisopropyl, Ketone,
Cyclohexanone, Acetophenone
Methyl Acetate, Ethyl Acetate, Propyl Acetate,
Butyl Acetate, Amyl Acetate, Ethyl
Acetoacetate, Butyl Acrylate, Methyl
Methacrylate
Diethyl Ether, Dibenzyl Ether, Ethylene Oxide,
Dioxan, Epichlorohydrin, Tetrahydrofuran
Propane
R-21, R-22
Acetone, Methyl Ethyle Ketone, Methyl Isobutyl
Ketone, Diisopropyl Ketone, Cyclohexanone,
Acetophenone
Methyl Acetate, Ethyl Acetate, Propyl Acetate,
Isopropyl Acetate, Butyl Acetate, Amyl Acetate,
Ethyl Acetoacetate, Ethyl Acrylate, Butyl Acrylate,
Methyl Methacrylate
Diethyl Ether, Isopropyl Ether, Dibutyl Ether,
Dibenzyl Ether, Ethylen Oxide, Dioxan,
Epichlorohydrin, Fulfural, Tetrahydrofuran
Amyl Alcohol
Acetic anhydride, Oleic acid, Palmitic acid
phenol
Nitromethane, Nitroethane, Nitropropane
Hydrogen
Nickel Acetate, Lead Acetate, Zinc Acetate,
Tetraethyllead, Vegetable Oil, Silicone Oil
Hydrochloric Acid, Nitric Acid, Sulfuric Acid,
Hydrobromic Acid, Phosphoric Acid,
Hypochlorous Acid, Chromic Acid, Perchloric
Acid, Sodium Hydroxide
14
Ethylene Glycol Monoethyl Ether Acetate, Butyl
Cellosolve, Triacetin
Formic acid, Acetic anhydride, Hydroquinone
Nitromethane, Nitroethane, Nitropropane,
Ethylenediamine, Dimethylaniline, Ethanolamine,
Hydrazine, Triethanolamine, Dimethylformamide,
Pyridine, Piperidine
Hydrogen Sulfide, Tributyl Phosphate
Calcium Acetate, Nickel Acetate, Lead Acetate,
Zinc Acetate
Sodium Hydroxide, Aqueous Ammonia
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 and 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 in taking out a specimens
During and immediately after operation, the internal surfaces of the chamber and the
door are extremely “HOT." To prevent injury, take out the specimens 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 or the area around the observation window during or
immediately after operation. Severe burning injury may be caused due to the high
temperature.
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.
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.
15
Caution about the temperature range.
z Model DP23/33 ovens should be used at temperature ranges from 40°C to 220°C
and DP43/63 ovens should be used at temperature ranges from 40°C to 200°C.
The temperature input range of DP23/33 is from 0°C to 260°C and the one of
DP43/63 is from 0°C to 220°C.
When you use the oven for the first time
During the initial operation, the oven may occasionally generate an odor especially
when high temperatures are reached. This odor is normal and does not signal a
problem with the oven. The nature of the odor is caused by the adhesive on the
insulation melting.
About the temperature in the chamber
The temperature outside the chamber is detected by a sensor that controls it.
Therefore, the temperature of the sample does not always match the temperature
measured by this sensor. The chamber temperature differs a great deal from the
temperature measured immediately after opening and closing the door.
Caution about a drenched specimen
z When using a very wet sample, try to drain it as much as possible before putting
it in chamber.
z When using a sample containing a large quantity of water or sample containing
an organic solvent, be sure to remove as much liquid evaporation as possible by
using a trap. This will help to ensure the life span of the vacuum pump and
vacuum oil.
Caution about a powdery specimen and the loading of specimens
There are times when a powder sample is scattered by the sudden decompression
operation or purge operation. When performing decompression or purge, open the
valve very slowly.
It occasionally takes a long time before the chamber reaches the target temperature
if the camber is congested with specimens or a specimen with the large specific
heat is in it. In such cases, reduce specimens. Moreover, note that the temperature
display occasionally unsettle when you process a exothermic specimen.
Do not place any samples on the bottom of the chamber
z Do not place any samples on the bottom of the chamber to heat, because it
affects the temperature control of the oven.
z Always put the samples on the attached shelves. Place sample so that it does
not touch the interior wall of the chamber.
z Set the shelves on the shelf brackets that will accommodate the size of the
sample.
16
Distribute specimens
z
z
Each shelf can carry a uniform load of 15 kg (33 lb.). When you place
specimens on a shelf, distribute them evenly over the shelf area.
If a shelf is congested with specimens, 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.
Precautions when stopping the vacuum pump
z If you stop the vacuum pump at an evacuated state, the oil in the pump may flow
backwards inside the oven. Therefore, when stopping the vacuum pump after
finishing the oven operation, first open the purge valve and the pump valve of the
oven, then stop the vacuum pump.
To keep the chamber being a vacuum
z To maintain a vacuum in the oven, leave the pump valve of the oven open to
make the vacuum pump operate. If you leave the pump valve closed and stop
the vacuum pump, there may be times when the pump oil will flow backwards in
the exhaust pipe.
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.
when having a blackout
Once the power supply is recovered, the oven can resume when it stopped because
of having a blackout.
Do not place specimens on the bottom plate.
Do not place any samples on the bottom
of the chamber to heat, because it
affects the temperature control of the
vacuum oven.
Never use corrosive specimens
Most parts are made of stainless steel (SUS304). However, strong acid
occasionally corrodes even stainless steel. Besides this, the silicone rubber
packing is also vulnerable to acid, alkali, oil and halogens' solvents
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.
17
Operating Procedure
When prepared completely, proceed as follows:
1. Turning on of power supply
2. Selection of operation menu
• Press the MENU key several times to select
• Turn on the circuit breaker.
desired operating method.
• It allows you to enter each parameter into a
• The present time is shown on the sub display.
flashing menu.
• Push the POWER key in the operation panel.
• When once the power is on, this oven becomes
a standby state. Under such a condition, every
operation mode can be selected by pushing the
MENU key.
3. Explanation of operation menu
Fixed
Temperature
: It is a operation method to bring the oven to the desired temperature and
keep it steady.
Auto stop
: It is a operation method to stop a fixed temperature operation when
reached the set time or hours.
Auto start
: It is a operation method to start the fixed temperature operation when
reached the set time or hours.
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 the desired time and repeat to do that.
18
FIXED TEMPERATURE OPERATION INSTRUCTIONS
Selection of operation
menu
Input of set temperature
• Push the ENTER key after
• Push the MENU key and
select the fixed temperature
operation.
making a sub-display display
an arbitrary set temperature
pushing ▲▼ keys.
Changing the set
temperature when fixed
temp operation is in
progress
• Push either the ▲ key or
the ▼ key to display the
desired temperature on the
main display and push the
ENTER key.
Push the MENU key.
Press either the ▲key or the ▼ key
several times.
Then, the desired set temperature will
appear on the main display.
Press either the ▲ key or the ▼
key several times.
Then, the desired set temperature
will appear on the main display.
The lamp of the FIXED TEMP blinks.
• The temperature set last time
is blinking and enters the state
that a set temperature can be
input in a sub-display.
Press the ENTER key.
• The vacuum oven will start to
run the fixed temperature
operation to the renewed
temperature.
Push the ENTER key.
• The vacuum oven will start
to run the fixed temperature
operation to the renewed
temperature.
19
AUTO START OPERATION INSTRUCTIONS
Selection of operation menu
• Select AUTO START mode by
Inputting the set temperature
• Press either the ▲ key or
pushing the MENU key.
the ▼ key to display the
desired temperature on the
main display and push the
ENTER key.
Inputting the desired set
time
• Press either the ▲ key or
the ▼ key to blink start
time (or the hour) on the
main display, and press the
ENTER key.
Push the MENU key.
The operation menu lamp of an AUTO
START blinks.
•
Press either the ▲ key or the ▼ key
several times.
Then, the desired set temperature will
appear on the main display.
Press either the ▲ key or the ▼
key several times.
Then, the desired start time(or hour)
will appear on the main display.
will appear on the
sub display and the desired
temperature can be input.
Sub display
Press The ENTER key.
Press the ENTER key.
•
will appear on the
sub display and the operation
start time can be input.
• The STANDBY lamp of the
operation monitor blinks.
• The operation will be in standby
condition.
• After reaching the set time
(or hour), the vacuum oven
will start to run the auto start
operation to the renewed
temperature.
20
Auto Stop Operation Method
Selection of operation menu
• Press the MENU key and
Inputting the set temperature
• Push either the ▲ key or
select the auto stop operation.
the ▼ key to blink the
desired temperature on the
main display and push the
ENTER key.
Inputting the desired set
time
• Push either the ▲ key or
the ▼ key to blink your
desired time (or hours) for
operation stop on the main
display, and press the
ENTER key.
Press the MENU key.
The menu lamp of an AUTO STOP
blinks.
•
Press either the ▲ key or the ▼
key several times.
Then, the desired set temperature will
appear on the main display.
Press either the ▲ key or the ▼
key several times.
Then, the desired stop time (or hour)
will appear on the main display.
will appear on the
sub display and the desired
temperature can be input.
Sub display
Push the ENTER key.
The main display will light up to
indicate the set temperature you have
chosen.
Push the ENTER key.
After about 1 second
•
will appear on the
sub display and the operation
stop time can be input.
21
•
will appear on the
sub display and you can
chose the wait function to
be activate or not.
Selection of wait function
• Press either the ▲ key or the
▼ key to indicate the wait
function (ON or OFF) on the
main display. Then press
ENTER key.
Working conditions of timer
• Auto Stop timer activates when: .
1. The wait function is on.
It starts when the set temperature has
reached the target value.
2. The waiting function is off or the time
setting represents hours.
Press either the ▲ key or the ▼ key
several times.
Either ON or OFF will appear on the
main display.
(activate)
It starts right after the auto stop
operation is started.
(inactive)
Press the ENTER key.
• This operation activates the
auto stop operation.
22
Programmed Operation Method
Selection of operation
menu
Input of execution
program number
Input of time
• Press either the ▲ key or
• Press the MENU key and
select
the
operation..
• Press either the ▲ key or
programmed
the ▼ key to indicate an
desired program number on
the main display, and press
the ENTER key.
the ▼ key to blink your
desired
operation start
time (or hour) on the main
display, and press the
ENTER key.
Press the MENU key.
The operation menu lamp of the
PROGRAM blinks.
•
Press either the ▲ key or the ▼ key
several times.
The program number will appear on
the main display.
NOTE: If no programs have been set,
―――― is blinking.
See the Operating Instructions
for Programmable Controller
to set a new program.
Press either the ▲ key or the ▼
key several times.
The desired set time will appear on
the main display.
will appear on the
sub display and the execution
program number can be input.
Push the ENTER key.
Push the ENTER key.
•
will appear on the
sub display and the operation
start time can be input.
• The standby lamp on the
operation monitor blinks.
(Operation is in STANDBY
MODE)
• The operation will start after
the set time is up.
NOTE : Both the DP23 and DP33 do not have the program operation mode.
23
SWITCHING FROM ONE OPERATION TO ANOTHER
This instrument can switch to a different operation mode without stopping the current program no
matter what mode it is in, fixed temperature operation, auto-start/stop operation, and program
operation.
Selection of operation menu
• Press the MENU key several times until the
desired operation menu lamp flashes on the
Operation Menu.
• Since the current operation has not stopped, the
operation menu lamp is also lit.
• On the Operation monitor -- the temperature
pattern indicator lamp blinks with the current
segment being executed.
Press MENU key several
times.
• This status allows you to enter each parameter
into blinking or lighting operation menu.
When the fixed temperature operation is selected
ƒ The main display shows the current internal
temperature.
ƒ The sub-display flashes the temperature set by the
previous fixed temperature operation.
When auto-start operation is selected
ƒ The main display flashes the temperature set by the
previous auto-start operation.
ƒ
The sub-display shows
(Temp.)
When auto-stop operation is selected
ƒ The main display flashes the temperature set by the
previous auto-stop operation.
ƒ
The sub-display shows
(Temp.)
When program operation is selected
ƒ The main display flashes the previously set program
number.
ƒ
The sub-display shows
(Program)
The lamp blinks or lights.
• Now operate according to the operation method you have chosen, see that section of this instruction
manual.
24
Method of using DISPLAY key
The display content of the sub display can be changed over by turns when pushed the DISPLAY
key.
Operation mode
Sub display
Fixed temperature
operation
Set temperature
Hour
Remaining time
Standby
Hour
Auto start
operation
Set temperature
During operation
Remaining time(*1)
Hour
Set temperature
During operation
Auto stop
operation
Remaining time(*2)
Hour
After time is up
Hour
Remaining time
Standby
Hour
Set temperature
Remaining time
Program operation
During operation
Hour
Execution segment (*3)
Hour
After finished
*1 : HOLD is displayed.
*2 : When the wait function is set to on,
is displayed in the waiting status.
*3 : During repeat operation, the rest of the repeat count can be displayed by the DISPLAY key.
25
Usage of MODE
Content of function menu
In addition to the functions shown previously, this unit’s controller also incorporates the following
functions.
• Press the MODE key to display any of the
following function menus on the main display. The
menus can be brought up one by one with ▲▼
keys.
The mode key is pushed.
Selected by ▲▼ keys.
Main display
Function
Communication
lockout
Date and current
hour setting
function.
Program inputting
and editing
function
It is a function to select whether to respond to it when there
is a communication demand from the host computer
connected via the communication interface.
To set the date and hour.
To input and edit the program.
Alarm buzzer
ON/OFF function.
To delete existing programs that are no longer necessary.
Confirmation of the program contents should be performed
prior to deleting and in accordance with Programmed
Operation Method.
To input either an hour or a period of time during time
setting process in the various operation modes -auto-start/stop, and program operation.
It is set to the time (a period of time) setting mode when
the product was shipped from the factory.
To set or reset the key lock function that locks the
POWER, MENU, ENTER, and DELETE keys on the
operation panel to prevent incorrect entries from the panel
during operation or while in the standby mode. If the key
lock function is set, the KEY LOCK lamp on the operation
monitor is lit.
To select whether or not to activate the alarm buzzer when
an error occurs.
Accumulated time
display function
To display the total duration that the POWER key is on,
within the range of 0 to 49999 hours.
Hold function
To hold the operation that is currently running. This
function is active only when operating in auto-start/stop or
program operation mode (including the standby condition),
or during the setting of the operation start time for
auto-start or program operations as well as the operation
end time for auto-stop are set in the form of “Time” and not
in the form of “Hour.”
Program deleting
function.
Hour/time setting
mode select
function.
Key lock
setting/resetting
function.
26
Calibration Offset Function
Outline of Function
In the controller, the relationship between the temperature
T detected by the sensor and the display temperature of
the operation panel D is expressed by the equation of the
line which passes the two points (T0, D0) and (TS, DS)
DS
shown in Fig. 1.
Here, T0 is the sensor detecting temperature when the chamber
y=ax+b
central temperature becomes the zero adjusting temperature
D0
(normally room temperature is adopted) D0 at the time of no load, TS
is the sensor detecting temperature when the chamber central
temperature becomes the span adjustment temperature (normally
T0
TS
working maximum temperature is adopted) DS at the time of no load
Sensor detection temperature
in the same way.
As it is clear from the facts above, conforming of the chamber central
Fig. 1
temperature and the display temperature is guaranteed only when
there is no load and at two points shown above. In other words, it is
possible for a temperature measured at a point in the chamber does not conform to the display temperature
of the operation panel at a voluntary temperature without load.
This is the function to move the line which passes above two points to the Y axis direction in parallel
(increase or decrease y intercept of the line). The parallel movement amount including a sign is defined as
the calibration offset. This function can conform the display temperature of the operation panel to the
measurement temperature of a voluntary point in the chamber at a voluntary temperature.
Display temperature
(Controlled temperature)
In Fig. 2, DSV is a display temperature of the
operation panel under the condition that the
temperature in the chamber is constant for a set
temperature. It is natural to say that this value is
equal to the target set temperature. DPV is a
measurement temperature of a voluntary point in the
chamber under this condition.
The difference
between DPV and DSV including the sign is defined
as the calibration offset. Therefore offset is shown
as below.
△DCAL=DPV-DSV
Equation 1
Display temperature
(Controlled temperature)
Parallel movement
DSV
△DCAL
DPV
Ti
TV
Sensor detection temperature
In Fig. 2, ΔDCAL becomes the negative value since the target
set temperature DSV is larger than the actually measured
In order to conform the display
temperature DPV.
temperature to the actually measured temperature, let the controller to recognize that the temperature in the
chamber differs from the target set temperature by ΔDCAL.
Fig. 2
NOTE: Setting Tolerance of Calibration Offset
♦
♦
♦
In case of the DP23/33, you can set the calibration offset within range of ±13°C.
In case of the DP43/63, you can set the calibration offset within range of ±11°C.
Initial value on shipping is set to 0°C.
27
Setting The Calibration Offset Function
This function can be activated when the controller is in the condition of accepting the MODE key.
EX. Bring the oven to the target set temperature 100°C and allow it to reach the steady state.. After
then measure the temperature at a point in the chamber. If it shows 97°C when the main display
shows 100°C, you can conform your measuring value to the one on the display by using the
calibration offset function.
Calibration offset ΔDCAL is obtained from the
Equation 1 (page27) as shown below.
△DCAL=97℃-100℃=-3℃
Procedures to set the calibration offset ΔDCAL to the controller are shown as below.
Setting and changing the calibration offset value
• Push the MODE key, and then push the
main display.
key or the

key several times to display
Push the
key or the
on the
key several times
• The sub display shows the calibration offset value that has been set the last time.
NOTE: When the unit is shipped from the factory, the sub-display shows 0 as the
calibration offset value.
Push the ENTER key.
• The main display flashes the preset calibration offset value.
⇒ In this state, the set value of the calibration offset can be changed.
• The sub display shows
.
Push the key or the key several times
• Push either the
key or the key to change the value on the main display to your desired value
(calibration offset value to be set newly).
When the changing is completed, push the
ENTER key.
• The changed value is entered and both the main and the sub displays return to the display mode just
before pushing MODE key. The controller starts the temperature controlling operation in order to
make the difference zero, since the difference is generated between the target set temperature and
the temperature in the chamber by the changing of the calibration offset value.
28
Safety Devices and Error Codes
Purposes and Operations of Safety Device and Counter-measures
This instrument incorporates an automatic diagnosis function built in the controller and safety
devices independent of the controller. The purposes and operations of the safety devices and
countermeasures are shown in the Table below. 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.
Safety Device
1. Circuit breaker
Display
No Display
2. Sensor malfunction
detector
3. Triac circuit detector
4. Disconnected heater circuit
detector
5. Independent overheating
prevention
TROUBLE lamp flashes.
flashes.
TROUBLE lamp flashes
flashes.
TROUBLE lamp flashes
flashes.
TROUBLE lamp flashes
flashes.
6. Main relay malfunction
detector
7. POST function*
TROUBLE lamp flashes
flashes.
TROUBLE lamp flashes
,
Cause & Counter-measures
• Power circuit interrupted
• Erases all displays
⇒ Report to our service office and
check the cause of the problem.
• Break in temperature sensor circuit.
⇒ Report to our service office.
• Short circuit in triac.
⇒ Report to our service office.
• Heater circuit is disconnected.
⇒ Report to our service office.
• Incorrect setting of the independent
overheating prevention.
⇒ Set correctly.
• Heating of sample
⇒ Reduce the amount of the sample.
• Malfunction of the independent
overheating prevention circuit.
⇒ Report to our service office.
• A malfunction of the main relay.
⇒ Report to our service office.
•
,
flashes.
8. Automatic overheating
preventive function
9. Key lock
No Display
Key lock display lamp lights up
10. Memory backup circuit
No Display
• Heating of samples
⇒ Reduce amount of samples
•
This function prevents the disruption
of operation due to incorrect
operation. Leave it on during
operation. (See section in this
manual for setting and resetting
methods).
⇒
* POST (Power On Self Test) function checks the microprocessor, memory surrounding LSI, surrounding
circuit of the controller every time “POWER” key is turned ON. This function checks that there are no fatal
malfunction of the controller before starting the operation.
29
INDEPENDENT OVERHEAT PREVENTION
There are two safety devices in this unit: the auto-overheating preventive function of the
controller (automatic recovery) and the independent overheating prevention (manual recovery).
They are configured by circuits and sensors that are independent from the controller. These
safety devices for the temperature overheating prevention protects the instrument in a fail-safe
method.
Setting the Temperature Range and Function
Setting
Temperature:
Input Method:
Function:
0 to 399oC
Three integer digital switch. Turn the drum of each column and set the desired
value. The first integer can only be from 0 to 3 for the hundred column.
Heater output is cut off when the measured temperature gets higher than the set
temperature of the independent overheating prevention. The function is active
when the circuit breaker is ON.
When the independent overheating prevention is activated,
is flashing on the main display with the TROUBLE lamp flashes. When the
independent overheat prevention is active while the heater is in the temperature
rising process, etc.,
and
flash alternately on the display.
Activation/Setting Method
1. Set the independent overheating prevention 15oC higher than the set temperature of the main
unit.
2. When setting the proper value to protect the sample, be sure it is well above room temperature,
and set it at least 15oC higher than the maximum temperature set value of the temperature
pattern of the program.
3. When the independent overheating prevention is activated improperly by changing the setting
of the independent overheating prevention lower than the internal temperature or by continuing
operation when the setting on the unit is too low, turn off the circuit breaker to reset the unit and
perform the setting again.
If it is activated by another reason, see Safety Devices and Error
Codes in the this manual.
Precautions
1. Only 0 to 3 can be set for the column of hundreds of the digital switch by the stop mechanism;
however, if forced to change it to a value higher than 3, it will damage the unit.
2. Set temperature can change by touching the setter when cleaning.
set temperature is correct after cleaning or before operation.
30
Always confirm that the
Maintenance and Inspection
Do not disassemble and modify the oven.
z
Do not disassemble the oven. There are parts in the unit with high voltage;
therefore, if the unit is disassembled, electric shock and injury may result.
Ask the Yamato Scientific office for inspection, adjustment, and repair of the inside of
the unit.
z Unauthorized modification will be hazardous and cause problems in the operation
of the Oven..
Modification
Maintenance Precautions
z Before starting inspection or maintenance, disconnect the power plug from the
receptacle.
z Conduct inspection and maintenance only after the oven has cooled down.
z When you remove dirt or stains from the unit’s resin parts and the control panel,
use a soft wet cloth. Do not use benzene, thinner, cleanser or a hard brush; it will
cause deformation, qualitative deterioration and/or discoloring of the components.
Periodic inspection of the safety component.(Only DP43/63)
z The independent temperature over-rise prevention device is important safety
component. Be sure to inspect it periodically.(See chapter on Maintenance
Procedure on page )
Monthly servicing of vacuum pump oil
z At least once a month, check the oil gauge of the vacuum pump and replenish the
oil as needed. Because the oil deteriorates during use, check the oil and replace
it periodically. For oil replacement, refer to the instruction manual of the vacuum
pump.
If you have any questions, contact our sales representative in your vicinity or our service office.
31
Maintenance Procedure
Operation Check of Independent Temperature Overheating Prevention Device
z After executing the fixed temperature operation at the set temperature 0°C, set the operation
temperature of the Independent Temperature Overheating Prevention Device to 0°C.
z Under normal circumstances, the heater circuit is cut off in a few seconds and the TROUBLE
lamp and
flashes at the same time, and the alarm buzzer sounds if the alarm
buzzer function is ON.
z After confirming, turn off the circuit breaker once, then return the setting of the Independent
Temperature Overheating Prevention Device to the proper value. Turn the circuit breaker
back ON.
Always perform inspection before a long continuous operation or an unattended
operation.
Long Storage and Disposal
When you do not use the oven for a long period of time.
Disconnect the power plug from the receptacle.
When you dispose of the oven.
Do not leave it where children can access.
to disable the door locking system.
32
Remove the knob and hinges of the door
After service and WARRANTY
If a Service Call is required:
If a Service Call is required
Warranty Card (attached to your Oven)
zPlease fill out completely and return the
bottom portion of the warranty card when
the unit is received. The completed top
portion is your Registration Card that should
be retained for your records.
zIf a problem occurs with the Drying Oven,
record the error code on the display and
stop the operation immediately, turn off the
power switch, and disconnect the power
plug from the receptacle. Contact our
sales or service representative.
zWarranty period is one (1) year after the
date of your purchase. During this
warranty period, we will offer free repair
service on the basis of the conditions
provided on the warranty card.
zCheck the warranty card or the name plate
of your Drying Oven and give us the
information below.
•
Model of your oven;
•
Serial product number of your oven;
•
Date of purchase; and
•
Problem with your oven (as detailed
as possible).
zIf you need repair service after expiration of
the warranty period, contact our sales or
service representative in your vicinity or
service office for advice.
Minimum Inventory Period of Repair Parts
Repair parts will be available for at least 5 years after termination of our production of DP Drying
Oven Series. Repair parts mean the parts that are necessary to maintain the performance of the
ovens.
33
TROUBLESHOOTING
Problem
No display of current hour in the
sub-display at the activation of the circuit
breaker.
Temperature fluctuates during the
operation
•
•
•
•
•
It takes a lot of time to form a vacuum in
the chamber.
Cause/Solution
Check if the power cable is firmly connected to
a receptacle.
Check for power failure.
Does ambient temperature fluctuate violently?
Are there too many specimens in the
chamber?
Are the specimens too moist?
•
Do you keep the pump value opened or the
purge valve closed?
• Check vacuum pump connection for leaks. In
case of defective vacuum hose, replace it.
• Has the pump oil been deteriorating?
(Refer to instruction manual of vacuum pump.)
34
SPECIFICATIONS
Model
Method
Performance:
Operating temperature
Operating pressure range
Temperature stability*1
Time to reach max. temp.*1
Structure:
Exterior
Interior chamber
Insulating material
Door
Heater nominal capacity
Vacuum gauge
Observation window
Vacuum connecting port
Purge port
Controller:
Temperature control method
Temperature setting method
Temperature indicating method
Other indication
Timer
Operation function
Additional function
Heater circuit control
Sensor
Safety device
Inside dimensions (WxDxH)*2
Overall dimensions (WxDxH)*2
Capacity
Weight
Power Requirements
DP43
DP63
Vacuum drying by decompressed chamber direct heating
DP23
DP33
40°C to 240°C
40°C to 200°C
101 to 0.1 kPa (760 to 1 Torr)
±1.5°C (at 240°C)
±1°C (at 200°C)
Approx. 60 min. Approx. 90 min. Approx. 80 min.
Approx. 120 min.
Cold rolled steel plate with baked-on melamine resin finish
Stainless steel (SUS304)
Rock wool
Single swing door
0.68kW
1.05kW
2.25kW
3.15kW
Bourdon tube type, 0 to 0.1MPa
Tempered glass covered with polycarbonate resin plate
NW25 flange
φ18 mm
RC1/4
φ18 mm
PID control by microprocessor
Digital setting method by
keys (resolution: 1°C)
Digital indication by green LED (resolution: 1°C)
Temperature pattern LED indication that shows operation indication
1 min. to 99 hrs. 59 min. or 100 hrs to 999 hrs
(timer resolution: 1 min. or 1 hr.)
Fixed temperature operation
Fixed temperature operation
Auto-start/Auto-stop operation
Auto-start/Auto-stop operation
Program operation
(16 segments, repeat, etc.)
Calendar timer function (actual hr. timer within 24 hrs.)
Integrating time function (Integrated hr. up to 49999 hrs. can be
measured.)
Time indication (The present time is indicated.)
Calibration Offset Function
Triac zero cross system
K thermocouple (double sensor)
Short circuit breaker
Self-diagnostic function (sensor abnormality, heater disconnection and
Triac short circuit detection; automatic temperature over-rise prevention)
Key lock function
Independent Temperature Overheat Prevention device
(Digital switch input system, setting temperature range: 0 to 399°C)
7.9”x9.8”x7.9”
11.8”x11.8”x11. 17.7”x17.7”x17.
23.6”x23.6”x23.6”
8”
7”
15.7”x16.1”x26. 20.1”x18.1”x30. 26.4”x26.3”x59.
32.3”x32.2”x65.0”
9”
8”
1”
0.35 cu ft
0.95 cu ft
3.2 cu. ft.
7.6 cu. ft.
Approx. 95 lbs. 152 Approx. lbs. Approx. 419 lbs.
Approx. 639 lbs.
AC 115V,
AC 115V,
AC 220 V,
AC 220 V,
50/60Hz, 6A
50/60Hz,9.5A
50/60Hz,10.5A
50/60Hz,14.5A
single phase
single phase
Accessories:
Punched stainless steel, 2 pcs.
Shelf
For exclusive use of this oven and the controller: each one
Instruction manual
NOTES: *1. Value at the time of no sample and ambient temperature of 20°C (Time required to reach
maximum temperature conforms to our standards.
35
*2. Inside and overall dimensions do not include protruding parts
36
WIRING DIAGRAM
GREEN
WHITE
AC 115V
BLACK
MCB
115V
(DP23/33) - AC 115V
Symbol
CT1
DSW
H
MCB
P1
PCB1
PCB2
PCB3
PCB4
SSR1
SW
Tf
TH
X1
37
Part Name
Current Transformer
Digital switch
Heater
Circuit Breaker
Terminal block
PIO board
PLANAR board
POWER board
Independent overheat prevention
Solid-state relay
Membrane keypad
Transformer
Thermocouple(double sensor)
Relay
GREEN
WHITE
AC 220V
BLACK
MCB
220V
(DP43/63) - AC 220V
Symbol
CT1
DSW
H
MCB
P1
PCB1
PCB2
PCB3
PCB4
SSR1*1
SW
Tf
TH
X1
Part Name
Current Transformer
Digital switch
Heater
Circuit Breaker
Terminal block
PIO board
PLANAR board
POWER board
Independent overheat prevention
Solid-state relay
Membrane keypad
Transformer
Thermocouple(double sensor)
Relay
*1 DP63 has two SSR1.
38
HEATER DETAILS
Heater Structure of Model DP23/33
Terminal block
AC115V
H1
H1
Terminal block
Heater Structure of Model DP-43
Terminal block
AC220V
Terminal block
Heater Structure of Model DP-63
Terminal block
AC220V
Terminal block
39
H2
H2
REPLACEMENT PARTS TABLE
DP23
Symbol
Part Name
Code No.
Specifications
CT1
Current Transformer
2170010002
CTL-6-S-400
H1
The upper heater
The side and the bottom
heater
Circuit breaker
Power code
Terminal block
PIO board
PLANAR board
Power board
Independent overheat
prevention
Solid-state relay
Membrane keypad
Transformer
Thermocouple
Relay
DP22B40500
115V, 80W
DP22B40510
115V, 200W
2060000007
2130010005
2070230001
1240000024
1240000033
1240000025
BS2021
T2 - 3b
M011-0FX 4P
1240000093
TB31-04-Z07
LT00028423
1013200006
2180000026
1160010026
2050000056
SSR-01
Type 3H
AC115V
K thermocouple (double sensor)
G7L-1A-TUB
H2
MCB
P1
PCB1
PCB2
PCB3
PCB4
SSR1
SW
Tf
TH
X1
Type 1
DP33
Symbol
Part Name
Code No.
Specifications
CT1
Current Transformer
2170010002
CTL-6-S-400
H1
The upper heater
The side and the bottom
heater
Circuit breaker
Power code
Terminal block
PIO board
PLANAR board
Power board
Independent overheat
prevention
Solid-state relay
Membrane keypad
Transformer
Thermocouple
Relay
DP32B-40500
115V, 150W
DP32B-40510
115V, 300W
2060000007
2130010005
2070230001
1240000024
1240000033
1240000025
BS2021
T2 - 3b
M011-0FX 4P
1240000093
TB31-04-Z07
LT00028423
1013200006
2180000026
1160010026
2050000056
SSR-01
Type 3H
AC115V
K thermocouple (double sensor)
G7L-1A-TUB
H2
MCB
P1
PCB1
PCB2
PCB3
PCB4
SSR1
SW
Tf
TH
X1
40
Type 1
DP43
Symbol
Part Name
Code No.
Specifications
CT1
Current Transformer
2170010002
CTL-6-S-400
H1
MCB
Heater
Circuit breaker
Power code
Terminal block
PIO board
PLANAR board
Power board
Independent overheat
prevention
Solid-state relay
Membrane keypad
Transformer
Thermocouple
Relay
DP41B-40500
2060000006
2130010009
2070230001
1240000024
1240000033
1240000025
220V, 225W
BS2022
T2 - 3c-0
M011-0FX 4P
1240000093
TB31-04-Z07
LT00028423
1013200006
2180000027
1160010026
2050000056
SSR-01
Type 4H
AC220V
K thermocouple (double sensor)
G7L-1A-TUB
P1
PCB1
PCB2
PCB3
PCB4
SSR1
SW
Tf
TH
X1
Type 1
DP63
Symbol
Part Name
Code No.
Specifications
CT1
Current Transformer
2170010002
CTL-6-S-400
H1
MCB
Heater
Circuit breaker
Power code
Terminal block
PIO board
PLANAR board
Power board
Independent overheat
prevention
Solid-state relay
Membrane keypad
Transformer
Thermocouple
Relay
DP41B-40500
2060000006
2130010010
2070230001
1240000024
1240000033
1240000025
220V, 225W
BS2022
T3 - 3d
M011-0FX 4P
1240000093
TB31-04-Z07
LT00028423
1013200006
2180000027
1160010026
2050120001
SSR-01
Type 4H
AC220V
K thermocouple (double sensor)
JR1aF-TM-DC12V
P1
PCB1
PCB2
PCB3
PCB4
SSR1
SW
Tf
TH
X1
41
Type 1
Reference
HAZARDOUS MATERIAL
Explosives
Explosives
Substances
Combustible
Substances
Oxidants
Flammables
Ignitable
Substances
Combustible
Gases
1. Nitroglycol, Nitroglycerin, Nitrocellulose, and other explosive nitric
esters.
2. Trinitrobenzens, Trinitrotoluene, Picric acid, and other explosive nitro
compounds.
3. Peracetic acid, Methyl ethyl ketone peroxide, Benzoyl peroxide, and
other organic peroxides.
Metallic lithium, Metallic potassium, Metallic sodium, Yellow phosphorus,
Phosphorus sulfide, Red phosphorus, Celluloid, Calcium carbide, Lime
phosphate, Magnesium powder, Aluminum powder, and other ignitable
metal powders and sodium dithionite (hydrosulfite).
1. Potassium chlorate, Sodium chlorate, Ammonium chlorate, and
other chlorates.
2. Potassium perchlorate, Sodium perchlorate, Ammonia perchlorate,
and other perchlorates.
3. Potassium peroxide, Sodium peroxide, Barium peroxide, and other
inorganic peroxides.
4. Potassium nitrate, Sodium nitrate, Ammonia nitrate, and other
nitrates.
5. Sodium chlorite and other chlorites.
6. Calcium hypochlorite and other hypochlorites.
• Ethyl ether, Gasoline, Acetaldehyde, Propylene chloride, Carbon
disulfide, and flammable substances with a flash point below
minus 30ºC.
• Normal hexane, Ethylene oxide, Acetone, Benzene, Methyl ethyl
ketone, and flammable substances with a flash point between
minus 30ºC and 0oC.
• Methanol, Ethanol, Xylene, Pentyl acetate (amyl acetate), and
inflammable substance with a flash point between 0ºC and 30ºC.
• Kerosene, Light oil, Turpentine oil, Isoamyl alcohol, Acetic acid, and
flammable substances with a flash point between 30ºC and 65ºC
Hydrogen, Acetylene, Ethylene, Methane, Ethane, Propane, Butane, and
other gases that are flammable under 1 atmospheric pressure at 15ºC.
(Quoted from “Addendum Table1 of Code of Work Safety and Hygiene Standard”)
42
Explanation of Character on the display
The oven has the controller with the 4-digit LED display. The meaning of Character on the display is as
follows:
Capital
Character
Meaning of Abbreviation
Meaning of Character on the display
A
accumulation
Integrated time
B
beep
Alarm sound setting mode
D
delete program
Deleting a program
display
Sub display switching mode
end
Setting mode for program end
error ##
Error code ##
F
f. wt (Forced wait)
Forced wait state after the power restoration
H
hold
Hold function mode
hr. mn (hour. minute)
Setting of time (hour, minute)
L
lock
Panel locking mode
M
mn. dy (month. day)
Setting of the date (month and day)
O
off
Make a function inactive
on
Make a function active
program ##
Program number
program
Program mode
program, segment
Ongoing program and ongoing segment
repeat count
Repeat frequency setting mode
real (real time)
The hour
repeat
Repeat command mode
rest time
Rest for remaining time
ramp level
Ramp level
temperature)
repeat start
Repeat start segment setting mode
ramp time
Ramp time of Segment ##
(Time required to reach the ramp level)
r. tim (real time)
the hour
##
segment
Segment number
##
soak time
Soak time of Segment ##
(Holding time of the ramp level)
step
Not in Ramp Operation
temp
Temperature mode
time
Time mode
wait
Wait function (Keep the operation until the desired
temperature is achieved)
wait ##
Wait function of Segment ##
year
the Christian era
E
P
##
R
##
##
S
T
W
##
Y
43
of
Segment
##
(Desired
set
Behavior after Power Restoration
When having a blackout during operation, the controller resumes the following operations after the power
restoration.
When having a blackout during the program operation
The controller automatically resume the program operation where it left at the power shutdown. In case
that the temperature inside the chamber is outside the specified temperature range based on the setpoint
temperature, the controller goes to the FORECED WAIT STATE until the
temperature inside the chamber comes back to the specified temperature range. When selecting the
indication of the remaining time by pushing the Display key in this condition, the sub display shows
.
The timer built-in the controller does not count a period of having a blackout as running time.
When having a blackout during the Auto-Stop operation
The controller automatically resume the Auto-Stop operation where it left at the power shutdown. In
case that the temperature inside the chamber is outside the specified temperature range based on the
setpoint temperature after the power restoration, the controller goes to the FORECED WAIT STATE until
the temperature inside the chamber comes back to the specified temperature range. When selecting the
indication of the remaining time by pushing the Display key in this condition, the sub display shows
.(Forced Wait)
In case that the operation stop time is set in a period of time, the timer built in the controller does not
count a period of a blackout as running time.
On the contrary, in case that the operation stop time is set
in hours, the timer built in the controller counts a period of a blackout as running time.
When the operation stop time reaches during a blackout, the controller stops running just after the power
restoration.
When having a blackout while the operation is in standby condition
In case that the operation start time is set in a period of time, the timer built in the controller does not
count a period of a blackout as standby time.
On the contrary, in case that the operation start time is
set in hours, the timer built in the controller counts a period of a blackout as standby time.
When the operation start time reaches during a blackout, the controller starts running just after the
power restoration.
When having a blackout during the Fixed temperature operation and a soak period
of the Auto-Start operation
The controller resumes running toward to the preset temperature after the power restoration.
44
Flowchart of Operational Procedures
Run “MENU”
Menu key
Program operation
Fixed temperature
operation
When you run the oven in a
programmed operation,
proceeds as follows.
Select the program number
by using either the Πkey or
the  key and then press the
ENTER key.
Displays set
temperatue
A feasible program
number will appear on
the main display.
Set to your desired
temperature by using either
the Œ key or the  key.
The operation start
time will appear on
the main display in
minute.
ENTER key.
Press the ENTER key
Set to your desired operation start
time by using either the Πkey or
the  key.
The operation start
time will appear on the
main display in hour
as of now.
ENTER key
Press the ENTER key
Auto start
Auto stop
The oven can start the fixed temperature
operation after a lapse of the fixed time.
The oven can stop the fixed
temperature operation after a lapse
of the fixed time.
Displays set
temperatue
Set to your desired temperature by using either the
Œ key or the  key and then press
the ENTER key.
Set to your desired temperature by
using either the Œ key or the  key
and then press the ENTER key.
Set to your desired operation start time by using
either the Œ key or the  key.
The operation start
time will appear on
the main display in
minute.
Displays set
temperatue
The operation start
time will appear on the
main display in hour
as of now.
The operation stop
time will appear on
the main display in
minute.
The operation stop
time will appear on the
main display in hour
as of now.
When switching the sub display screens during standby
condition, the remaining time and the hour as of now can appear.
Once started operation, the remaining time (= HOLD), the hour
as of now and the set temperature can be switched on the sub
display.
Set the fan motion to
ON or OFF.
Set the fan motion after
the operation stopped.
Set the fan motion to
ON or OFF.
ENTER key.
Press the ENTER key
Select the wait function
ENTER key.
Set the wait function to ON when you want to hold the fixed
operation for a time that you have set in advance.
Set the wait function to OFF when you want to run the oven
through the operation for a time that you have set in advance.
ENTER key.
Press the ENTER key
45
Press the ENTER key
Program “MODE”
MODE
Main display
See the programming flowchart.
Inputting and deliting
programs (ProG)
Programming
NOTE:If there are no programs, this will not appear.
▲ ▼
ENTER key
Deleting programs
ENTER key
Select the programs number
that you want delete.
*The number of existing programs
will appear on the sub display.
Œ  keys
ENTER key
ENTER key
In case of a period of time
Time/Hour switching
function
In case of the hour
Select the timer mode that you
want to run in hour mode or in a
period of time mode while
running each operation.
Œ  keys
ENTER key
Key lock setting/
releasing function
The key lock will disable you
from doing the key action.
ENTER key
The key action will get
active.
Select the key lock mode.
Œ  keys
ENTER key
The alarm will be sounded.
Alarm buzzer ON/OFF
function
ENTER key
The alarm will not be
sounded.
Set the alarm to be sounded or not if a
problem occurs.
Display
Accumulating time (Accm)
The total time for the power being on can be
shown on the sub display.
Diplay the total time for the
power being on.
It will appear on the sub display.
ENTER key
Date and current hour
setting function (cLoK)
ENTER key
Set the Christian era
by using either theŒ
key or the key.
Set the date and hour.
ENTER key
Calibration off set
function (cAL)
ENTER key
Set the date by using
either theΠkey or
the  key.
▲ ▼
Display
The calibration off set
value that has been set in
advance will appear.
46
ENTER key
Set the hour by using
either theΠkey or
the  key.
ENTER key
Change to your off set value
by using either theΠkey or
the  key.
Flowchart for programming
Segment configuration
: Segments are made up of the following
items, and must be input in this order.
MODE key
Press
▲ ▼ Key
Call up the program mode.
Temperature
ENTER
Ramp level
key
▲ ▼ Key
Time
Ramp time
Soak time
ENTER
key
▲ ▼ Key
ENTER
key
Ramp time
Ramp level
Rising time
▲ ▼ Key
ENTER
key
Target temperature
Call up the program number that you want to
input or edit.
When you want to rewrite programs, call up
your desired segment number on the main
display.
Note that this will appear in case of editing.
Input Ramp time.
Note: When you run this unit with full power,
input
.
▲ ▼ Key
Input Ramp level.
Soak time
Time held at ramp level
ENTER
key
▲ ▼ Key
Wait function
Selects whether to give
priority to soak time
(OFF), or to hold
process time at ramp
level (ON).
ENTER
key
▲ ▼ Key
Input Soak time.
Note: If there is no soak time (changing
immediately to next temperature), input
0. To hold, select
Select wait function.
ENTER
key
▲ ▼ Key
ENTER
key
▲ ▼ Key
The next segment will appear.
Note: To repeat, press either the key or the
, and select it with
key to display
the ENTER key. Input the segment
number that you want to repeat, and
then do the repeat count.
* Input all the settings in the same way.
When
ENTER
key
▲ ▼ Key
Settings
finished
47
finished inputting all items, select
for the ramp time, and press the
ENTER key.
REFERENCE DATA
The data below should be used for reference only, these values are not
guaranteed actual results may vary.
Temperature rising character of Model
DP-43.〈Vacuum state: below 1 Torr
(0.1kPa〉
Temperature rising character of Model
DP-63.〈Vacuum state: below 1 Torr
(0.1kPa〉
48
DP-33
DP-23
Temperature rising character of Model
DP-23/33;(chamber center).〈Vacuum
state: below 1 Torr (0.1kPa〉
Pressure falling characteristic of Models
DP-43/63.
49
Responsibility
Please follow the instructions in this document when using this unit.
Yamato Scientific has no
responsibility for the accidents or breakdown of device if it is used with a failure to comply.
Never conduct what this document forbids.
Unexpected accidents or breakdown may result
in.
Note
◆ The contents of this document may be changed in future without notice.
◆ Any books with missing pages or disorderly binding may be replaced.
Instruction Manual for
VACUUM DRYING OVENS
Model DP23/33/43/63
Version 4
Feb. 25, 2009
Revision
Apr. 12, 2010
Yamato Scientific America, Inc.
925 Walsh Avenue, Santa Clara,
CA 95050, U.S.A
http://www.yamato-usa.com
Toll Free: 1-800-2-YAMATO(1-800-292-6286)
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