Yamato Scientific DN410I Inert Oven User Manual

Loading...

MECHANICAL INERT OVEN

Model: DN410I

Version 2

Yamato Scientific Co., LTD.

Congratulations on your selection of Yamato Scientific’s Mechanical Inert Oven!

Please read these operating instructions, user notes and the warranty card thoroughly before the initial operation of your Mechanical Inert 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 Mechanical Inert 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 Mechanical Inert Oven from damage --

Negligence of this warning may result in damage to the Mechanical Inert 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

SAFETY PRECAUTIONS .............................................................................................................................

2

NOTES TO USERS........................................................................................................................................

4

IDENTIFICATION OF PARTS ..............................................................................................................................

4

Main unit.....................................................................................................................................................

4

Control Panel ..............................................................................................................................................

5

INSTALLATION .................................................................................................................................................

7

INERT GAS INJECTION ......................................................................................................................................

9

PRECAUTIONS IN HANDLING................................................................................................................

10

OPERATING PROCEDURE .......................................................................................................................

13

FIXED TEMPERATURE OPERATION INSTRUCTIONS.......................................................................

14

AUTO START OPERATION INSTRUCTIONS.........................................................................................

15

AUTO STOP OPERATION METHOD..................................................................................................................

16

PROGRAMMED OPERATION METHOD .............................................................................................................

18

SWITCHING FROM ONE OPERATION TO ANOTHER .........................................................................

19

METHOD OF USING DISPLAY KEY........................................................................................................

20

HOW TO USE THE MODE.........................................................................................................................

21

CONTENT OF FUNCTION MENU.......................................................................................................................

21

CALIBRATION OFFSET FUNCTION..................................................................................................................

22

Outline of Function ..................................................................................................................................

22

Setting The Calibration Offset Function ................................................................................................

23

SAFETY DEVICES AND ERROR CODES ................................................................................................

24

PURPOSES AND OPERATIONS OF SAFETY DEVICE AND COUNTER-MEASURES................................................

24

INDEPENDENT OVERHEAT PREVENTION .........................................................................................

25

BEHAVIOR AFTER POWER RESTORATION .........................................................................................

26

MAINTENANCE AND INSPECTION .......................................................................................................

27

MAINTENANCE PROCEDURE ..........................................................................................................................

28

LONG STORAGE AND DISPOSAL......................................................................................................................

28

AFTER SERVICE AND WARRANTY ........................................................................................................

29

IF A SERVICE CALL IS REQUIRED: ..................................................................................................................

29

TROUBLESHOOTING................................................................................................................................

30

SPECIFICATIONS ......................................................................................................................................

31

WIRING DIAGRAM ....................................................................................................................................

32

REPLACEMENT PARTS TABLE...............................................................................................................

33

REFERENCE...............................................................................................................................................

34

HAZARDOUS MATERIAL..........................................................................................................................

34

LIST OF SYMBOLS IN THE DISPLAY.................................................................................................................

35

FLOWCHART OF OPERATIONAL PROCEDURES................................................................................................

36

Run “MENU”.............................................................................................................................................

36

Program “MODE” .....................................................................................................................................

37

Flowchart for programming.....................................................................................................................

38

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 the symbol.

1

Safety Precautions

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 earth leakage 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. 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.

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.,

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.

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.

2

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 during or immediately after operation.

Do not touch the door during or immediately after operation. Severe burning injury may be caused due to the high temperature.

CAUTION

During a thunder storm . . .

During a thunderstorm, turn off the power key immediately, then turn off the earth leakage breaker and the main power. If this procedure is not followed, fire or electrical shock may be caused.

Periodic check of the safety component.

The independent temperature over-rise prevention device is important safety component. Be sure to inspect it periodically. (See chapter of INDEPENDENT OVERHEAT PREVENTION on page 25.)

3

Notes to Users

Identification of Parts

Main unit

Independent overheat prevention

Control panel

Flowmeter

Power cable

Gas injection port

Door handle

Power switch

(Earth leakage breaker)

4

Control Panel

 

 

 

 

 

e

 

 

 

c

 

b

 

f

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)

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.

(2)

MODE key:

Key to select a function from program input, edit, delete modes,

 

 

hour/time setting, change-over mode, and other functions.

(3)

DISPLAY key:

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.

 

(4)

MENU key:

Key to select the operation mode.

Each mode of fixed

 

 

temperature, auto-start, auto-stop and program operation can be

 

 

selected.

 

 

(5)

ENTER key:

Key to determine the input value of set value (temperature, time,

 

 

hour, etc.), selection mode, execution segment No. etc.

(6)/(7) (UP/DOWN) key:

Key to change set value (temperature, time, hour, etc.) and to

 

 

choose a selection from various parameters on the function menu.

(8)

ESCAPE key:

Key to cancel the latest entry and recover the status that was valid

 

 

prior to the making the latest selection.

(9)

Main Display:

It displays temperature measurements, set values (temperature,

 

 

time, hour, etc.), program information, error information, etc.

(10)Sub Display:

It displays set temperature, remaining time, current hour and

 

 

execution segment No. etc.

 

(11)Operation monitor:

It indicates an operation mode.

 

a)

(11) STANDBY lamp:

It flashes to indicate that the instrument is in the preoperational

 

 

standby mode.

 

 

b)

(11) Temperature

It illuminates to indicate the heat treatment process pattern

 

pattern lamp:

executed by the controller with flashing light indicating the point

 

 

currently in execution.

 

 

c)

(11) OVER lamp:

It flashes to indicate the end of auto-stop or program operation.

d)

(11) TROUBLE

It blinks when an error is detected and displays the corresponding

 

indicator lamp:

code for that particular problem.

 

5

e)

(11)REMOTE operation

It illuminates when the instrument is put into remote operation

 

indicator lamp:

(optional) and displays the word “REMOTE.”

f)

(11)KEY LOCK

It illuminates to indicate that the operation panel key lock function is

 

indicator lamp:

in operation.

(12)Operation menu

It illuminates to indicate the active operation mode in the operation

 

indicator lamp:

menu.

(13)Sub display menu

It illuminates to indicate the item (set temperature, remaining time,

 

indicator lamp:

hour or execution segment) shown in the sub display.

(14)HEAT ON indicator

It illuminates when the heater is on.

 

lamp

 

(15)TIME indicator lamp:

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.

(16)Independent

Setting the instrument to the operational temperature of the

 

Temperature

independent over rising prevention.

 

Overheating Prevention

 

 

Device:

 

6

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 grounding cable to your ground conductor or ground terminal.

zDo not forget to ground the Oven, to protect you and the unit from electrical shock in case of power surge.

zDo 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.

NOTE: The oven has not a plug connected because of the 200V specification.

Choose a correct power distribution board.

z Choose a correct power distribution switchboard or receptacle that meets the

oven’s rated electric capacity.

 

Electric capacity

AC 200 V, single phase 16A

zDo not connect the oven to an outlet that differs from the above specifications because a fire or electrical shock will occur.

Supply connections for the oven

z Request the supply connection for the 200V specifications from a licensed electrician.

zFailure 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.

7

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 are constant vibrations.

z Keep the following clearance around the oven.

 

Or more

Or more

Or more

 

After installed, you should:

z It may cause injure to a person if this oven falls down or moves by the earthquake and the impact, etc..

zTo prevent, take measures that the unit cannot fall down.

zSecure the unit by putting the stoppers on the casters.

8

Handling of power code.

z 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.

zDo not process, bend, wring, or stretch the power cord forcibly. Fire or electrical shock may result.

zDo not put the power cord under the desk, chair, etc., or through an object. Fire or electrical shock may be caused.

zDo 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.

zWhen the power cord is damaged (exposure of the core wires, disconnection,

etc.), turn off the power key right immediately, then turn off the earth leakage 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.

zPut the attached shelves on the shelf brackets fitted to the chamber when you use the oven.

Inert gas injection

z Adjust the pressure valve that the pressure will be within 0.2 to 0.5 kg/cm2G prior to injecting a nitrogen gas.

zSecure the tube with a clamp when injecting a gas.

zReadjust the pressure valve within 0.2 to 0.5 kg/cm2G while injecting a gas.

zDo not inject any gas other than a nitrogen gas.

9

Precautions in handling

Substances that can be used

zNever use explosive substances (shown on page 34), flammable substances (shown on page 34) and substances that include explosive or flammable ingredients in the unit. Explosion or fire may occur.

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 earth leakage 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 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 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.

10

Caution about the temperature range.

Use the oven in the range of 40°C to 210°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 adhesive on the insulation melting causes the nature of the odor.

About the temperature in the chamber

Temperature display indicates the sensor temperature installed in the unit, however it does not always correspond to the temperature of the sample when the sample volume is very large or when the temperature is on the increase.

Caution about a drenched sample

z When using a very wet sample, try to drain it as much as possible before putting it in chamber.

Caution about a powdery sample and the loading of samples

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 samples or a sample with the large specific heat is in it. In such cases, reduce samples. Moreover, note that the temperature display occasionally unsettle when you process an exothermic sample.

Distribute samples

zEach shelf can carry a uniform load of 15 kg (33 lb.). When you place samples on a shelf, distribute them evenly over the shelf area.

zIf 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.

Never use corrosive samples

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

Ventilate a room when using an inert gas

Application in a well-ventilated area is recommended.

11

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.

Sample

z Always put the samples on the attached shelves. Place sample so that it does not touch the interior wall of the chamber.

zSet the shelves on the shelf brackets that will accommodate the size of the sample.

During a thunder storm

During a thunderstorm, turn off the power key immediately, then turn off the earth leakage breaker and main power. If this procedure is not followed, fire or electrical shock may be caused.

In case of power failure

Once the power supply has been cut off due to power failure, and then the power supply is restored, the oven will resume running.

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.

12

Operating Procedure

When prepared completely, proceed as follows:

1. Turning on of power supply

2. Selection of operation menu

Turn on the earth leakage breaker.

The present time is shown on the sub display.

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.

Press the MENU key several times to select desired operating method.

It allows you to enter each parameter into a flashing menu.

3. Explanation of operation menu

Fixed

: It is an operation method to bring the oven to the desired temperature and

Temperature

keep it steady.

Auto stop

: It is an operation method to stop a fixed temperature operation when

 

reached the set time or hours.

Auto start

: It is an operation method to start the fixed temperature operation when

 

reached the set time or hours.

Program

: It is an operation method that can start or stop an 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.

13

FIXED TEMPERATURE OPERATION INSTRUCTIONS

Selection of operation menu

Push the MENU key and select the fixed temperature operation.

Push the MENU key.

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.

Input of set temperature

Push the ENTER key after making a sub-display display an arbitrary set temperature pushing ▲▼ keys.

Press either the key or the key several times.

Then, the desired set temperature will appear on the main display.

Press the ENTER key.

The oven will start to run the fixed temperature operation to the renewed temperature.

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.

Press either the key or the key several times.

Then, the desired set temperature will appear on the main display.

Push the ENTER key.

The oven will start to run the fixed temperature operation to the renewed temperature.

14

AUTO START OPERATION INSTRUCTIONS

Selection of operation menu

Select AUTO START mode by pushing the MENU key.

Push the MENU key.

The operation menu lamp of an AUTO START blinks.

will appear on the sub display and the desired temperature can be input.

Sub display

Inputting the set temperature

Press either the key or the key to display the desired temperature on the main display and push the ENTER key.

Press either the key or the key several times.

Then, the desired set temperature will appear on the main display.

Press The ENTER key.

will appear on the sub display and the operation start time can be input.

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.

Press either the key or the key several times.

Then, the desired start time (or hour) will appear on the main display.

Press the ENTER key.

The STANDBY lamp of the operation monitor blinks.

The operation will be in standby condition.

After reaching the set time (or hour), the oven will start to run the auto start operation to the renewed temperature.

15

Auto Stop Operation Method

Selection of operation menu

Press the MENU key and select the auto stop operation.

Press the MENU key.

The menu lamp of an AUTO STOP blinks.

will appear on the sub display and the desired temperature can be input.

Sub display

Inputting the set temperature

Push either the key or the key to blink the desired temperature on the main display and push the ENTER key.

Press either the key or the key several times.

Then, the desired set temperature will appear on the main display.

Push the ENTER key.

The main display will light up to indicate the set temperature you have chosen.

After about 1 second

will appear on the sub display and the operation stop time can be input.

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 either the key or the key several times.

Then, the desired stop time (or hour) will appear on the main display.

Push the ENTER key.

will appear on the sub display and you can chose the wait function to be activated or not.

16

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.

Press either the key or the key several times.

Either ON or OFF will appear on the main display.

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.

It starts right after the auto stop operation is started.

(activate) (inactive)

Press the ENTER key.

This operation activates the auto stop operation.

17

Programmed Operation Method

Selection of operation menu

Press the MENU key and select the programmed operation.

Press the MENU key.

The operation menu lamp of the PROGRAM blinks.

will appear on the sub display and the execution program number can be input.

Input of execution program number

Press either the key or the key to indicate an desired program number on the main display, and press the ENTER key.

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.

Push the ENTER key.

will appear on the sub display and the operation start time can be input.

18

Input of time

Press either the key or the key to blink your desired operation start time (or hour) on the main display, and press the ENTER key.

Press either the key or the key several times.

The desired set time will appear on the main display.

Push the ENTER key.

The standby lamp on the operation monitor blinks. (Operation is in STANDBY MODE)

The operation will start after the set time is up.

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

The main display shows the current internal temperature.

The sub-display flashes the temperature set by the previous fixed temperature operation.

When auto-start operation is selected

The main display flashes the temperature set by the previous auto-start operation.

The sub-display shows (Temp.)

When auto-stop operation is selected

The main display flashes the temperature set by the previous auto-stop operation.

The sub-display shows (Temp.)

When program operation is selected

The main display flashes the previously set program number.

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.

19

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

Auto start operation

Auto stop operation

Program operation

Standby

During operation

During operation

Set temperature

Hour

Remaining time

Hour

Set temperature

Remaining time (*1)

Hour

Set temperature

Remaining time (*2)

Hour

 

 

After time is up

 

 

Hour

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remaining time

 

 

Standby

 

 

 

 

 

 

 

 

 

 

 

Hour

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Remaining time

 

 

 

 

 

 

 

During operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hour

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Executionsegment(*3)

 

 

 

 

 

 

 

 

 

 

 

 

 

After finished

 

 

Hour

 

 

 

 

*1: HOLD is displayed.

*2: When the wait function is set to on, is displayed in the waiting status.

*3: The DISPLAY key will enable to show the rest of the repeat count while the repeat operation.

20

How to use the MODE

Content of function menu

This controller has the other functions shown bellow.

Press the MODE key and display your desired

function on the main display by pushing either the

key or the key. Each function will appear by

 

 

 

 

 

 

 

turns whenever pushing the

keys.

 

 

 

 

Press the mode key.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Select with the key or

 

 

 

 

 

 

 

the key.

 

 

 

 

Function

 

Main display

 

 

 

 

Inputting and editing

To input and edit the program.

 

 

 

 

 

 

 

 

 

programs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To delete existing programs that are no longer necessary.

 

 

Deleting the

 

Confirmation of the program contents should be performed

 

 

Program.

 

prior to deleting and in accordance with Programmed

 

 

 

 

Operation Method.

 

 

 

 

To input either an hour or a period of time during time

 

 

Switching time

setting process in the various operation modes --

 

 

auto-start/stop, and program operation.

 

 

setting mode.

 

 

 

 

It is set to the time (a period of time) setting mode when the

 

 

 

 

 

 

 

 

product was shipped from the factory.

 

 

 

 

To set or release the key lock function.

 

 

 

 

This function is for protecting wrong key actions during the

 

 

Setting and releasing

operation or while being in the standby state.

 

 

Once set to ON, the key lock will disable you from doing

 

 

the key lock.

 

the POWER, MENU, ENTER, and DELETE key action.

 

 

 

 

 

 

 

 

If the key lock function is set, the KEY LOCK lamp on the

 

 

 

 

operation monitor is lit.

 

 

Alarm buzzer

 

To select whether you want to activate the alarm buzzer or

 

 

 

not when an error occurs.

 

 

ON/OFF function.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Accumulating time

To display the total duration that the POWER key is on,

 

 

within the range of 0 to 49999 hours.

 

 

display function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To hold the operation that is currently running. This function

 

 

 

 

will get active only when you run the oven in auto-start/stop

 

 

 

 

or program operation mode (includes the standby state).

 

 

Hold function

 

In addition, it will work when the setting of the operation

 

 

 

 

start time for auto-start and program operation as well as

 

 

 

 

the operation end time for auto-stop are set in the form of

 

 

 

 

“Time” and not in the form of “Hour.”

 

 

Date and current

To set the date and hour.

 

 

 

 

 

 

 

 

 

hour setting function.

 

 

 

 

 

 

 

 

 

 

 

 

Calibration offset

To conform the display temperature to the measurement

 

 

temperature of a voluntary point in the chamber at a

 

 

function

 

 

 

 

voluntary temperature. Details are described on page 22

 

 

 

 

 

 

 

 

21

 

 

 

 

 

+ 61 hidden pages