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34 

11. Wiring diagram

 

 

DX302/402/602

 

 
 

1

T

ELB

AC100V

H1

H2

9

3
4

2

1

SSR

TB1

CONT

TH

X1

X2-1

X2-2

+

-

CN1

CN1

1

22

22

1

PIO

8

7

6

5

4

3

2

1

OH

X2

2

3

4

X1

 

 

 
 

Symbol

 

Part name

 

Symbol

 

Part name

 

ELB

 

Earth leakage breaker

 

OH

 

Standalone overheat prevention 
device (Thermostat)

 

H1, H2

 

Heater

 

TH

 

Temperature sensor 
(K-thermocouple)

 

T

 

Terminal block

 

CONT

 

Planar board

 

SSR

 

SSR

 

PIO

 

Display circuit board

 

X1, X2

 

Relay

 

 

 

 

Summary of Contents for DX302

Page 1: ...he Operating Instructions and Warranty before operating this unit to assure proper operation After reading these documents be sure to store them securely together with the Warranty at a handy place for future reference Warning Before operating the unit be sure to read carefully and fully understand important warnings in the operating instructions Yamato Scientific Co Ltd ...

Page 2: ...perating procedures auto stop operation 19 Operating procedures auto start operation 21 Useful functions calibration offset function 23 Useful function setting lock function 24 Useful function power outage compensation function 25 5 Cautions on handling 26 6 Maintenance procedures 28 Daily inspection maintenance 28 7 When the unit is not to be used for a long time or when disposing 29 When the uni...

Page 3: ...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 pictogram indicates a matter that encourages t...

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: ...er cord plug from the power supply A fire or an electrical shock may result Never use 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 fla...

Page 6: ... direct sunlight Where vibration is severe Install this unit at a place with spaces shown below 15cm or more 15cm or more Front 15cm or more 1m or more 2 Never operate the unit in an atmosphere containing explosive or flammable gas Never operate the unit in an atmosphere containing flammable or explosive gas Since the unit is not explosion proof an arc is discharged when turning a switch ON and OF...

Page 7: ...erial a flammable material or a material containing them An explosion or a fire may result 4 Do not alter the product 5 Install the unit on a level surface The user shall never attempt to alter the unit since it may cause a malfunction Flat Install the unit on a level surface Installing this unit on a slope might cause unexpected troubles or malfunctions Explosive substance Combustible material Al...

Page 8: ... 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 board Thus the temperature of the flow adjusting board and around it is always higher than th...

Page 9: ... DX302 AC100V 9 5A DX402 AC100V 14A DX602 AC100V 14A When the unit will not start even when you turn the earth leakage breaker to ON check for low main voltage or if the unit is connected to the same power supply line as other devices and connect it to another line if necessary Avoid connecting too many devices using a branching outlet or extending a wire with a cord reel or temperature controllin...

Page 10: ...ailable class D grounding work is necessary and please consult your dealer or our nearest sales office Be sure to connect the ground wire to the wall outlet securely We recommend use of a ground type outlet tap When there is no ground terminal In this case class D grounding work is necessary and please consult your dealer or our nearest sales office When a bipolar type outlet tap is used Insert th...

Page 11: ...mes and functions of parts Main body Front panel Rear panel Power cord Exhaust port Control panel Handle Door Rating sticker Standalone overheat protection device Thermostat Main switch Earth leakage breaker ...

Page 12: ...ss of the Timer key Key for setting calibration offset temperature the key lock function or the power outage compensation function RUN lamp Illuminates during fixed temperature operation and blinks during timer operation HEATER lamp Illuminates while heater power is on Measured temperature screen Displays measured temperature in the bath set characters alarm information Set temperature screen Disp...

Page 13: ...19 cAL Calibration offset setting Used for inputting a calibration offset temperature See section Using the calibration offset function on page 23 Lock Key lock of settings Key locks settings to prevent their alteration See section Using the lock function on page 24 Pon Power outage compen sation setting Selects operations after recovery from power outage See section Using the power outage compens...

Page 14: ... stop with the keys Pressing the RUN STOP key starts quick auto stop operation and activates the timer in the middle of it to automatically stop it after the set period of time P 17 3 Auto stop operation Used when you want to set automatic stop for fixed temperature operation when making settings for it Press the TIMER key to display AStP Set a duration before stop with the keys Pressing the RUN S...

Page 15: ...ture can be set with the manual dial on the hydraulic overheat prevention device installed at the right side of the unit P 15 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 temperatu...

Page 16: ...mer start Auto stop Time setting AStＰ Automatic stop of operation Long press ELB ON TIMER RUN STOP One sec Time setting RUN STOP One sec AStr Timer start Auto start of operation Time setting RUN STOP One sec LocK off on Calibration offset function Compensation setting cAL Minus Plus TIMER SUB MENU Function setting End Operation stop RUN STOP End RUN STOP One sec Operation stop RUN STOP One sec ASt...

Page 17: ...verheat prevention device Thermostat Set the temperature scale on the standalone overheat prevention device Thermostat installed on the right side of the unit to the arrow in the diagram shown left Turn the ELB to OFF and wait for a while without opening the door After a while turn the ELB ON Turn the ELB ON Caution Set temperature as set temperature 20 as a rough standard and add 5 to the setting...

Page 18: ...ion Press the RUN STOP key longer Fixed value operation will start and the RUN lamp and the HEATER lamp come on 4 Stopping operation Press the RUN STOP key longer Operation stops the RUN lamp goes off and the screen switches to the initial setting screen When you want to correct setting errors or change settings When you want to change settings press the keys on the current screen to enter the set...

Page 19: ... 99 hours 59 minutes time can be set in minutes One hundred hours and over are set only in 10 minutes 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 MEASURED TEMP HEATER RUN SET TEMP RUN STOP TIMER SUB MENU 2 Starting timer operation When the time you want is set press the RUN STOP key while the se...

Page 20: ...duration from when the set temperature is reached to the time the device shall be stopped When you want to change settings after timer activation press the TIMER key on the current screen to enter the setting mode where you can change settings Note however you need to set a time calculated by adding the time already passed to the time to be added After change has been made press the RUN STOP key t...

Page 21: ...eys 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 MEASURED TEMP HEATER RUN SET TEMP RUN STOP TIMER SUB MENU 2 Starting timer operation When the time you want is set press the RUN STOP key for about one second while characters AStP that indicate auto stop operation are displayed on the measured temperature scree...

Page 22: ...re is reached to the time the device shall be stopped When you want to change settings after timer activation press the TIMER key on the current screen to enter the setting mode where you can change settings Note however you need to set a time calculated by adding the time already passed to the time to be added After change has been made press the RUN STOP key to complete the process Auto stop ope...

Page 23: ...urs 59 minutes time can be set in minutes One hundred hours and over are set only in 10 minutes 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 MEASURED TEMP HEATER RUN SET TEMP RUN STOP TIMER SUB MENU 2 Starting timer operation When the time you want is set press the RUN STOP key for about one seco...

Page 24: ...ime with the keys In either case the set temperature screen will stop blinking after a while and switche to the timer count mode and the change made is determined 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 When operation has started after the auto start time you cannot change the set time When you want to st...

Page 25: ...to exit the sub menu mode When you want to set the key lock function proceed to character selection process for the key lock function without pressing the TIMER key SUB MENU key long You can set either of or side for the offset compensation temperature When compensation is set for the side the measured temperature display decreases by the compensation temperature while the temperature in the bath ...

Page 26: ... indicate the setting lock function MEASURED TEMP HEATER RUN SET TEMP RUN STOP TIMER SUB MENU Off is displayed on the set temperature screen To lock settings change to on using the key Press the TIMER key SUB MENU key long to exit the sub menu mode MEASURED TEMP HEATER RUN SET TEMP RUN STOP TIMER SUB MENU 3 To release lock press the TIMER key SUB MENU key long again and select the characters Lock ...

Page 27: ...tory MEASURED TEMP HEATER RUN SET TEMP RUN STOP TIMER SUB MENU Press the TIMER key SUB MENU key long to enter the sub menu mode Press the TIMER key SUB MENU key several times to select the characters Pon that indicate the power outage compensation function MEASURED TEMP HEATER RUN SET TEMP RUN STOP TIMER SUB MENU On is displayed on the set temperature screen The device keeps stop status after reco...

Page 28: ...s Caution 1 Do not step on the unit Do not step on the unit Otherwise the unit may trip over or be damaged resulting a personal injury or a malfunction 2 Do not put or drop an object on the unit 2 Do not put or drop an object on the unit Since the unit contains high precision devices vibrations or shock may cause a malfunction 3 When a thunder is heard When a thunder is heard turn the ELB on the m...

Page 29: ...erature control To assure proper temperature precision put samples with a space at least 30 of the shelf board area 9 Do not put a sample on the bottom inside the product Never place a sample on the bottom since if the unit is operated with a sample directly placed on the bottom of the internal bath the optimal performance of the unit will not be attained and temperature in the product may increas...

Page 30: ...mble the unit Caution 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 Every month Inspect the functions of the ELB Test shall be performed with the power cord connected and power is being supplied to the unit First turn the ELB to off Then turn the...

Page 31: ... 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 Major materials Major mechanism part components Enclosure Steel plate Melamine resin baking finish Intern...

Page 32: ... abnormality occurs confirm the error code and immediately stop operation Safety device Symptom Possible causes and measures Sensor error appears z Error in the temperature input circuit z Disconnection or other errors in the temperature sensor z Measured temperature is outside the displayable range Contact our service department Memory error appears z Memory setting error Contact our service depa...

Page 33: ...ower supply voltage has declined If ambient temperature fluctuates widely If cooling load for inside the bath is not too large Displayed temperature differs from the measurement If the calibration offset setting is not other than 0 Set it to 0 Confirm settings in Useful functions calibration offset function in page 23 If power outage occurs When the power is applied again after the unit has stoppe...

Page 34: ...our dealer date of purchase and other information and store securely z 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 z 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 functionality can be...

Page 35: ... operation quick auto stop operation Auto stop operation auto start operation Sensor K thermocouple Control assembly Auxiliary functions Lock function power outage compensation function calibration offset function Controller Self diagnostic function Temperature sensor error memory error auto overheat prevention measured temperature error Safety device Protection device ELB with an over current pro...

Page 36: ... CN1 CN1 1 22 22 1 PIO 8 7 6 5 4 3 2 1 OH X2 2 3 4 X1 Symbol Part name Symbol Part name ELB Earth leakage breaker OH Standalone overheat prevention device Thermostat H1 H2 Heater TH Temperature sensor K thermocouple T Terminal block CONT Planar board SSR SSR PIO Display circuit board X1 X2 Relay ...

Page 37: ...0B Y Yamato PIO Display circuit board LT00007639 CN40B Y Yamato Tough card 1 13 000 0009 50 Yamato X1 Relay LT00032865 FC 0T 1b 100V Fuji X2 Relay 2 05 008 0002 AP3124K Matsushita SSR SSR 2 16 000 0035 TRS5255 Toho Power cord LT00008924 2 0sq 3P Yamato ELB Earth leakage breaker 2 06 000 0019 FG32R 15 30MA 15A Fuji OH Standalone overheat prevention device Thermostat LT00033261 55 13265 900 E G O ...

Page 38: ...te 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 degree 30 or more degrees below zero n hexane ethylene o...

Page 39: ...fications Specification power supply P 8 P 7 P 33 2 Operation start Starts operation Performs fixed value operation auto stop operation or auto start operation 2 Before operating the unit Installation procedures 4 Operating procedures P 4 8 P 12 25 Description 1 Operational descriptions Explain operations of each compo nent according to the operational instructions 4 Operating procedures Operating...

Page 40: ...ver attempt to perform matters prohibited in this operation instruction Otherwise an unexpected accident may result Notice Descriptions in this operating instruction are subject to change without notice We will replace a manual with a missing page or paging disorder Operating instruction Constant Temperature Drying Oven DX302 402 602 Fourth edition Dec 10 2009 Yamato Scientific Co Ltd 103 8432 2 1...

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