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6. Maintenance procedures

Daily inspection/maintenance

Be sure to perform daily inspection and maintenance to assure reliable operation of the unit.

Warning

●

Be sure to pull out the power cord unless necessary before trying to do inspection and
maintenance works.

●

Start these works after the device has returned to the normal temperature.

●

Never try to disassemble 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.

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Содержание DX302C

Страница 1: ...e 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 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 America Inc ...

Страница 2: ...edures 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 unit is not to b...

Страница 3: ...hock 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 Alteration Explosive substance Combustible ...

Страница 8: ...g 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 t...

Страница 9: ...20V 5A DX402C AC115V 12 5A DX412C AC220V 7 5A DX602C AC115V 12 5A DX612C AC220V 7 5A 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 cor...

Страница 10: ...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 works 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 t...

Страница 11: ... Names and functions of parts Main body Front panel Rear panel Power cord Exhaust port Control panel Handle Door Caution plate Hydraulic standalone overheat prevention device Power switch ELB Rating plate ...

Страница 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...

Страница 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 compensation setting Selects operations after recovery from power outage See section Using the power outage compensa...

Страница 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...

Страница 15: ...ith 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 temperature band of the un...

Страница 16: ...er start Autostop Timesetting AStＰ Automatic stop of operation Long press ELBON TIMER RUN STOP One sec Timesetting RUN STOP One sec AStr Timer start Auto start of operation Timesetting RUN STOP One sec LocK off on Calibrationoffset 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 AStＰ Power...

Страница 17: ...e scale on the hydraulic overheat prevention device 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 if the device functions improperly The temperature setting range f...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 22: ... 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 opera...

Страница 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...

Страница 24: ...time with the keys In either case the set temperature screen will stop blinking after a while and switch 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...

Страница 25: ...between the set temperature and the temperature in the bath using the keys and press the TIMER key SUB MENU key long 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 t...

Страница 26: ...t 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 To release lock press the TIMER key SUB MENU key long again and select the characters Lock t...

Страница 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...

Страница 28: ...esult The user shall never attempt to repair the unit to avoid any possible dangers 3 When using a wet material Drain off well the water of wet material before putting it in chamber in case to dry it Otherwise it may cause dew condensation or excessively high humidity and cause harm to electrical system Be careful that it may cause malfunction Caution 1 Do not step on the unit Do not step on the u...

Страница 29: ...ples Withstand load of the shelf boards included is approx 15kg Do not place a sample heavier than this withstand load When putting samples arrange them as dispersed as possible Too many samples may prevent proper temperature 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...

Страница 30: ...cord unless necessary before trying to do inspection and maintenance works Start these works after the device has returned to the normal temperature Never try to disassemble 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 ...

Страница 31: ...n Always 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 SPCC powder coating Interna...

Страница 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...

Страница 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...

Страница 34: ... and please fill in your 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...

Страница 35: ...op 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 protector hydraulic standal...

Страница 36: ...115V ELB DX312C 412C 612C X2 X2 1 X2 2 O H X1 1 3 4 SSR 2 TB1 2 3 4 8 5 7 6 H 2 ELB AC220V T 1 1 H 1 2 3 4 1 2 3 4 5 6 7 8 9 CO N T CN 1 22 1 1 22 PIO CN 1 TH X1 Symbol Part name Symbol Part name ELB Earth leakage breaker OH Thermostat H1 H2 Heater TH Temperature sensor K thermocouple T Terminal block CONT Control board SSR SSR PIO Display board X1 X2 AC Relay ...

Страница 37: ...QX 116F 2 110AL1HSTFW YSJ X2 AC Relay SJA06808 JQX 13F A1002Z1D YSJ H1 2 Heater LT00020604 115V 450W DX302 YSA YSC Power cord SJA04480 3 2mm2 3m black white green USA plug YSJ Replacement parts for DX402C Symbol Part name Code No Specifications Manufacturer X1 AC Relay SJA04620 JQX 116F 2 110AL1HSTFW YSJ X2 AC Relay SJA06808 JQX 13F A1002Z1D YSJ H1 2 Heater LT00020605 115V 750W DX402 YSA YSC Power...

Страница 38: ...arts for DX412C Symb ol Part name Code No Specifications Manufacturer X1 AC Relay SJA06060 HF116F 2 220AL1HSTFW YSJ X2 AC Relay SJA06063 JQX 13F A2202Z1D YSJ H1 2 Heater LT00007909 100V 680W YSC Power cord YSAJ000013 3 2mm2 3m black white green No plug YSJ Replacement parts for DX612C Symb ol Part name Code No Specifications Manufacturer X1 AC Relay SJA06060 HF116F 2 220AL1HSTFW YSJ X2 AC Relay SJ...

Страница 39: ...m perchlorate and other 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 i...

Страница 40: ...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...

Страница 41: ...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 DX302C 402C 602C 312C 412C 612C Second Edition 26 June 2012 Yamato Scientific America Inc 925 Walsh Ave Santa Clara CA 95050 Tel 408 235 7725 For technical informa...

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