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17

4. Operating procedures

Operating procedures (fixed temperature operation)

How to start fixed
temperature
operation

MEASURED TEMP.

℃

HEATER

ALARM

AUTO STOP

AUTO START

SET

TEMP.

OVER TEMP.

PROTECTOR

FIXED TEMP.

PROGRAM

1. Turn power ON. (Turn the ELB to ON.)

When power is turned ON, the initial values will be displayed for
about four seconds, then the initial screen will appear and the
current bath temperature, operation mode character and the
overheat prevention set temperature are displayed on each of the
displays.

MEASURED TEMP. display: Indicates the present bath temperature and various
characters.
Set temperature display: Indicates the set temperature and various characters.

Overheat prevention set temperature display: Indicates the set temperature for
the overheat prevention device.

For operation mode characters, see section page 11.

MEASURED TEMP.

℃

HEATER

ALARM

AUTO STOP

AUTO START

ENTER

SET

TEMP.

OVER TEMP.

PROTECTOR

FIXED TEMP.

RUN

STOP

SUB

MENU

TIMER

FIXED

TEMP.

PROGRAM

PROGRAM

MEASURED TEMP.

℃

HEATER

ALARM

AUTO STOP

AUTO START

ENTER

SET

TEMP.

OVER TEMP.

PROTECTOR

FIXED TEMP.

RUN

STOP

SUB

MENU

TIMER

FIXED

TEMP.

PROGRAM

PROGRAM

MEASURED TEMP.

℃

HEATER

ALARM

AUTO STOP

AUTO START

ENTER

SET

TEMP.

OVER TEMP.

PROTECTOR

FIXED TEMP.

RUN

STOP

SUB

MENU

TIMER

FIXED

TEMP.

PROGRAM

PROGRAM

2. Selecting an operation mode

Press the FIXED TEMP. key to display the fixed temperature
operation mode on the SET TEMP. display.

Display the character Fix

.

3. Setting the temperature

Press the FIXED TEMP. key again.

The character SV

that indicate a set temperature is

displayed on the MEASURED TEMP. display on which the current
set temperature flashes and the FIXED TEMP. lamp flashes.
Set a temperature using the

▼▲

keys.

4. Starting operation

Press the RUN/STOP key for about one second. Operation starts
and status of the FIXED TEMP. lamp changes from flashing to
illuminated.

5. Stopping operation

Press the RUN/STOP key for about one second. Operation stops,
the FIXED TEMP. lamp goes off and the screen switches to the initial
setting screen.

When you want to
correct setting
errors or confirm
settings

When you made a mistake during setting or reconfirm settings you
made, press the FIXED TEMP. key again to resume setting.
When you want to change set temperature during operation, press the

FIXED TEMP. key to enter the setting mode and change the set

temperature. After change has been made, press the ENTER key to
complete the process.

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Summary of Contents for DVS402C

Page 1: ... drying oven z Please read the Operating Instructions and Warranty before operating this unit to assure proper operation After reading these documents be sure to store them securely together for future reference z WARNING Carefully read and thoroughly understand the important warning items described in this manual before using this unit Yamato Scientific America Inc ...

Page 2: ...to stop operation 19 Operating procedures auto start operation 21 Preparing a program 23 Program repeat operation 28 Programming sheet 29 Useful functions calibration offset function 31 Useful function lock function 32 5 Cautions on handling 33 6 Maintenance procedures 35 Daily inspection maintenance 35 7 When the unit is not used for a long time or when disposing 36 When the unit is not used for ...

Page 3: ...ock a bone fracture or intoxication that may leave after effects or require hospitalization or outpatient visits for a long time Note 2 Minor injury means a wound or an electrical shock that does not require hospitalization or outpatient visits for a long time Note 3 Property damage means damage to facilities devices and buildings or other properties This symbol indicates a matter that encourages ...

Page 4: ... Hazard of explosion Caution General cautions Electrical shock Burning Caution for no liquid heating Caution for water leak For water only Poisonous material Prohibitions General bans Fire ban Do not disassemble Do not touch Compulsions General compulsions Connect ground wire Install levelly Pull out the power plug Regular inspection ...

Page 5: ...electrical power cords bundled When these are used bundled they might overheat causing a fire Take care not to damage electrical power cords Avoid tightly bend pull with a strong force or twist to prevent electrical power cords from damaging A fire or an electrical shock may result Never use an explosive or a flammable material with this unit Never use an explosive material a flammable material or...

Page 6: ...ype outlet tap When there is no ground terminal In this case class 3 grounding work is necessary and please consult your dealer or our nearest sales office When a bipolar type outlet tap is used Insert the ground adaptor included as an option into a power plug confirming the polarity of the outlet Connect the grounding wire green of the ground adaptor to the ground terminal on the power supply equ...

Page 7: ...rged when turning a switch ON and OFF and during operation and a fire or an explosion may result See the section 13 List of dangerous materials on page 43 for flammable and explosive gases Never use the unit with an explosive material a flammable material or a material containing them An explosion or a fire may result See the section 13 List of dangerous materials on page 43 for flammable and expl...

Page 8: ...unit on a slope might cause unexpected troubles or malfunctions 6 Do not overload shelves 7 Do not place too many samples Withstand load of each shelf board is 15kg in uniform loading Place samples in a dispersed fashion Too many samples may prevent proper temperature control Be sure to use shelf boards and place samples apart each other so as to make free space of 30 or more to assure proper temp...

Page 9: ...aces Also take appropriate safety measures to prevent the unit from tripping over 10 Placing shelf boards and samples Two shelf boards are included with this product One of them has been fixed on the lowest stage of the shelf pillar of the internal bath at the time of shipping from the factory Set another board to an appropriate position in the bath A heater is installed under the flow adjusting b...

Page 10: ... may burn and result in a fire or an electrical shock If the power cord should be damaged exposure of core wire or disconnection immediately turn the main unit off pull out the power cord plug out of the power supply and ask your dealer to replace the cord Otherwise a fire or an electrical shock may result Connect the power cord to an appropriate wall outlet 12 When you operate the unit for the fi...

Page 11: ...9 3 Names and functions of parts Main body Front view DVS412C 612C Rear View Control panel Door Handle Power switch ELB Power cord Exhaust port Cable hole Observation window Caution plate Rating plate ...

Page 12: ...lock function or the program repeat function HEATER lamp Illuminates while heater power is on ALARM lamp When an error occurs the lamp illuminates with an audible buzzer AUTO STOP lamp Flashes while the quick auto stop timer is being set and illuminates while the unit is in operation Flashes while the auto stop timer is being set and illuminates while the unit is in operation AUTO START lamp Flash...

Page 13: ...tion Preparing a program on page 23 PAt Program pattern select Used for selecting a program pattern to be used See section Preparing a program on page 23 End Time up Displayed when timer operation has ended See page 18 19 and 21 Sv 1 Program temperature setting Used for setting temperatures for each step of a program Sv 1 to Sv 30 is displayed t 1 Program time setting Used for setting time for eac...

Page 14: ...t function on page 31 oH Setting overheat protection device temperature Used for setting an overheat protection device temperature See section Settings for overheat prevention device on page 16 Lock Key lock of settings Key locks settings to prevent their alteration See section Using on page 32 See the section Operation mode function setting keys and characters on page 15 for characters of operati...

Page 15: ... when you want to set automatic stop for fixed temperature operation when making settings for it Press the TIMER key to display AStP Pressing the ENTER key to set the temperature setting Sv Pressing the ENTER key again to enable setting of the operation time tim Pressing the RUN STOP key starts auto stop operation P 19 4 Auto start operation Used when you want to start operation automatically afte...

Page 16: ... device is triggered the unit will stop and will not recover until the power switch is turned on again Manual recovery P 16 2 Calibration offset function Calibration offset function compensates any differences between the target temperature in the bath and the control temperature of the controller sensor temperature The function can compensate to either plus or minus side for the whole temperature...

Page 17: ... 1 pattern PrG3 10 steps x 3 patterns PrG2 15 steps x 2 patterns Setting no of program steps End Sv 1 Program mode setting Step 1 Temp setting t 1 Step 1 Time setting Press to switch Temp and time are set in turn for each step ENTER Program operation start SUB MENU SUB MENU PS n Setting step No to return SUB MENU Pc n Setting no of step repetitions Program repeat operation PAｔ Program pattern sele...

Page 18: ...LB to ON When power is turned ON the initial values will be displayed for about four seconds then the initial screen will appear and the current bath temperature operation mode character and the overheat prevention set temperature are displayed on each of the displays MEASURED TEMP HEATER ALARM AUTO STOP AUTO START ENTER SET TEMP OVER TEMP PROTECTOR FIXED TEMP RUN STOP SUB MENU TIMER FIXED TEMP PR...

Page 19: ...R FIXED TEMP PROGRAM PROGRAM MEASURED TEMP HEATER ALARM AUTO STOP AUTO START ENTER SET TEMP OVER TEMP PROTECTOR FIXED TEMP RUN STOP SUB MENU TIMER FIXED TEMP PROGRAM PROGRAM 2 Selecting an operation mode Press the FIXED TEMP key to display the fixed temperature operation mode on the SET TEMP display Display the character Fix 3 Setting the temperature Press the FIXED TEMP key again The character SV...

Page 20: ...OTECTOR FIXED TEMP RUN STOP SUB MENU TIMER FIXED TEMP PROGRAM PROGRAM 2 Starting timer operation When you have set a time you want start the RUN STOP key for about one second Timer operation starts with the FIXED TEMP lamp and the AUTO STOP lamp are illuminated Timer starts counting when the RUN STOP key is pressed 3 Stopping and ending timer operation Operation stops automatically when the set ti...

Page 21: ...layed on the MEASURED TEMP display on which the current set temperature flashes and the AUTO STOP lamp flashes Set a temperature you want using the keys Press the ENTER key The character tim that indicates the timer is displayed on the MEASURED TEMP display and the current set time flashes on the SET TEMP display Set a time you want using the keys About the timer function The maximum time that can...

Page 22: ...itches to the initial setting screen When you want to correct set temperature or set time or confirm settings When you want change the set temperature or a set time press the TIMER key during operation set temperature and time for the auto stop operation with the keys and press the ENTER key to complete Note however when you change the set time you need to set a time calculated by adding the time ...

Page 23: ...temperature is displayed on the MEASURED TEMP display on which the current set temperature flashes and the AUTO START lamp flashes Set a temperature you want using the keys Press the ENTER key The character tim that indicates the timer is displayed on the MEASURED TEMP display and the current set time flashes on the SET TEMP display and the AUTO START lamp flashes Set a time you want using the key...

Page 24: ...ature or set time or confirm settings When you want change the set temperature or a set time press the TIMER key during operation set temperature and time for the auto start operation with the keys and press the ENTER key to complete Note however when you change the set time you need to set a time calculated by adding the time already passed to the time to be added Pressing the key during operatio...

Page 25: ... Confirm the number of steps temperatures for each step and time on the program preparation sheet on pages 29 30 in the operation manual Confirm the heating and cooling capacity of the device Time needs to be set within the heating and cooling capacity of the device For a device having a cooling or heating capacity of 3 for every ten minutes for example it requires about 35 minutes lowering or rai...

Page 26: ...5 Making a program Programming is explained using a program pattern shown below as an example here 1 Example of program pattern Temp 250 200 150 100 0 Step 1 2 3 4 5 6 7 8 9 Temp 250 250 200 200 150 150 100 100 50 Time Minute 80 30 20 30 30 30 40 Repeat function is used Number of steps needs not to be added 30 100 2 Turn power ON Turn the ELB to ON When power is turned ON the initial values will b...

Page 27: ...gram modes of PrG1 PrG2 or PrG3 Here how to register a program is explained using PrG3 as an example MEASURED TEMP HEATER ALARM AUTO STOP AUTO START ENTER SET TEMP OVER TEMP PROTECTOR FIXED TEMP RUN STOP SUB MENU TIMER FIXED TEMP PROGRAM PROGRAM 4 Registering a program inputting a program Select PrG3 following the previous section 3 Input the number of program steps step temperature and step time ...

Page 28: ...in program pattern program repeat in the middle of a program as in the example a special procedure will be required In this case set time t 7 in the example for the step to be repeated step 7 in the example and press the SUB MENU key without pressing the ENTER key Now you can enter the repeat function set mode For operations of the program repeat function and how to register input follow procedure...

Page 29: ...tes Keep the keys pressed to continuously change set time and you can quickly reach the time you want Press the keys once at a time for fine adjustment When you want to correct setting errors or confirm settings When you want to go back to previous steps for example to correct programming errors or to confirm settings press the FIXED TEMP key to return the setting screen to the previous screen Eve...

Page 30: ...EMP display In the example the repeat function is input in the seventh step and PS 7 is displayed on the MEASURED TEMP display You can input a number 1 to 7 of a step to return to on the SET TEMP display and input the number of step 1 in the example using the keys Then press the SUB MENU key Character Pc n that indicates number of repetitions is displayed on the MEASURED TEMP display Input the num...

Page 31: ...perating procedures Programming sheet Make duplicates as necessary Registration destination PrG1 PrG2 PrG3 PAt1 PAt2 PAt3 Control No Y M D Title of test Prepared by Program pattern 250 200 150 100 50 Step No ...

Page 32: ...st Prepared by Program input values Set temperature Set time unit minutes Repeat function input Return destination No of times Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 Step 11 Step 12 Step 13 Step 14 Step 15 Step 16 Step 17 Step 18 Step 19 Step 20 Step 21 Step 22 Step 23 Step 24 Step 25 Step 26 Step 27 Step 28 Step 29 Step 30 ...

Page 33: ...icates calibration offset using the keys and press the ENTER key Input the difference between the set temperature and that in the bath using the keys and press the ENTER key to complete setting You can set either of or side up to 99 and 99 respectively for the offset compensation temperature When compensation is set for the side the MEASURED TEMP display decreases by the compensation temperature w...

Page 34: ... MENU key Press the SUB MENU key select the character Lock that indicates setting lock using the keys and press the ENTER key OFF is displayed on the SET TEMP screen To lock settings change to ON using the key To release lock press the SUB MENU key select the character Lock that indicates setting lock using the keys and press the ENTER key Lock is released when off is selected using the key and th...

Page 35: ...tion or a fire 3 When opening or closing the door When opening or closing the door do not put your hand or face close to the area the door moves space The door may touch your hand or face and causing an injury 4 Do not operate the unit with the door open When the unit is operated with the door open proper temperature control is not possible and the heater may overheat pausing a possible danger Be ...

Page 36: ...ormance of the unit will not be attained and temperature in the bath may increase excessively causing a malfunction Arrange samples on the shelf boards supplied and set the board on the shelf clamps Placing a shelf board 9 About recovery from power outage When the power is applied again after the unit has stopped due to power outage the unit resumes operation with the status immediately before the...

Page 37: ... do inspection and maintenance works z Start these works after the device has returned to the normal temperature z Never try to disassemble the unit Caution z Wipe off any dirt with a tightly wrung soft cloth Never try to clean the unit with benzene thinner or scouring powder or rub with a scrubbing brush Deformation degradation or discoloration may result ...

Page 38: ...ys pay attention to the preservation of the global environment We highly recommend taking the unit apart as far as possible for separation or recycling to contribute to the preservation of the global environment Major components and materials for the unit are as follows Names of major components Material Major mechanism part components Exterior Steel plate SPCC powder coating Interior Stainless st...

Page 39: ...n the temperature sensor Contact our service department SSR short circuit detected Alarm lamp on appears z SSR short circuit Contact our service department Heater disconnection detected Alarm lamp on appears z Heater disconnection Contact our service department Memory error Alarm lamp on appears z Memory setting error Contact our service department Internal communication error Alarm lamp on appear...

Page 40: ...ad for inside the bath is too large Temperature fluctuates during operation z Check if the set temperature is appropriate z Check if the power supply voltage has declined z Check if ambient temperature fluctuates widely z Check if cooling load for inside the bath is too large Displayed temperature differs from the measurement z Check if the calibration offset setting is other than 0 Set it to 0 Co...

Page 41: ... please fill in your dealer date of purchase and other information and store securely Warranty period is one full year from the date of purchase Repair service for free is available according to the conditions written on the warranty card For repairs after the warranty period consult your dealer or one of our sales offices Paid repair service is available on your request when the product s functio...

Page 42: ...iliary functions Lock function calibration offset function power outage compensation function Self diagnostic function Temperature sensor error heater error memory error SSR short circuit auto overheat prevention measured temperature error Safety device Protection device Circuit Breaker overheat prevention device electronic type with an integrated controller Outer dimensions mm w x d x h 560 601 8...

Page 43: ... Symbol Part name Symbol Part name ELB Earth Leakage Breaker CONT Control circuit board T Terminal block PIO Display circuit board H Heater TH1 Temp sensor X AC relay TH2 Overheat prevention sensor SSR Solid state relay CT Current detection element ...

Page 44: ...SC 1130000008 DVS402C 602C JQX 116F 2 110AL1HSTFW YSJ SJA04620 X AC Relay DVS412C 612C HF116F 2 220AL1HSTFW YSJ SJA06060 SSR Solid state relay XBPE4025C YSJ SJA13073 Power cord 3 2mm2 3m black white green USA plug YSJ SJA04480 ELB ELB KD LS2123 30A 30mA YSJ SJA04529 CT Current detection element CTL 6 S H YSC 2170010005 DVS402C T0301 01 07 115V 1200W YSJ SJA24105 DVS412C T0301 03 07 220V 1200W YSJ ...

Page 45: ... perchlorates Potassium perchlorate sodium perchlorate ammonium perchlorate and other inorganic perchlorates Potassium nitrate sodium nitrate ammonium nitrate and other nitrates Sodium chlorite and other chlorites Oxidizing substances Calcium hypochlorite and other hypochlorites Ethyl ether gasoline acetaldehyde propylene chloride carbon disulfide and other substances with ignition point at a degr...

Page 46: ...Specification power supply P 4 P 7 P 40 2 Operation start Starts operation Performs fixed temperature operation auto stop operation auto start operation or program operation 2 Before operating the unit Installation procedures 4 Operating procedures P 4 8 P 13 32 Description 1 Operational descriptions Explain operations of each com ponent according to the operational instructions 4 Operating proced...

Page 47: ...ed 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 Constant Temperature Drying Oven Model DVS402C 602C 412C 612C Second Edition November 8 2012 Yamato Scientific America Inc 925 Walsh Ave Santa Clara CA 95050 Tel 408 235 7725 For technical informatio...

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