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Yamato DE411, Instruction Manual

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Yamato DE411 Instruction Manual Download Page 54

 

51

 

5. HANDLING PRECAUTIONS

 

 

Caution

 

 

17. Cable port precaution. 

 

 

Whenever  a  manual  temperature  gauging  sensor  or  probe  is  inserted  through  the  cable  port, 
close  the  port  cover  as  fully  as  possible  and  completely  seal  any  gaps  with  heat-resistant 
insulation or sealant. If the seal is inadequate, temperature characteristics or other performance 
properties will be degraded and inaccurate.   

 

18. Initial operation. 

 
 

 

When  operating  unit  for  the  first  time,  organic  substances  in  the  heat  insulator  may  burn  and 
produce  smoke,  which  is  normal  and  not  a  malfunction.  An  accompanying  odor  may  also  be 
emitted, but will subside with continued operation.   

 

19. DO NOT apply paint thinner, alcohol or other solvents to equipment. 

 

 

Never  attempt  to  clean  DE/DT  series  units  with  paint  thinner,  alcohol  or  solvents  of  any  kind. 
Doing so may cause coating to peel, discoloration, superficial damage and deformity to some 
components. 

Note: always turn off main power switch (ELB) prior to cleaning or maintenance. 

 

20. Fan motor. 

 
 

 

Fan  continues  operating  while  the  ELB  is  ON(

｜

)  and  unit  is  in  standby  with  chamber  door 

closed.   
Press 

  to turn controls off (idle) and stop fan. 

 

21. Read instruction manual thoroughly before operation. 

 

 

Always  read  instruction  manual(s)  for  all  equipment,  thoroughly,  before  beginning  setup, 
installation and operation. 

 

Summary of Contents for DE411

Page 1: ...lications For laboratory drying and sterilization use only For proper equipment operation please read this instruction manual thoroughly before use Always keep equipment documentation safe and close at hand for convenient future reference Warning Read instruction manual warnings and cautions carefully and completely before proceeding Yamato Scientific America Inc Santa Clara CA Printed on recycled...

Page 2: ... Programs 34 Wait Function 36 Keypad Lock Function 37 Calibration Offset Function 38 Recovery Function 39 CO2 Emissions Power Consumption Settings 40 Data Backup Data Recovery Reset 42 Monitoring Data 43 Independent Overheat Prevention Device 45 5 HANDLING PRECAUTIONS 46 Warning 46 Caution 47 6 MAINTENANCE PROCEDURES 52 Daily Inspection Maintenance 52 Replacing the HEPA filter 52 7 STORAGE AND DIS...

Page 3: ...Wiring Diagram Glossary 63 13 HAZARDOUS SUBSTANCES LIST 64 14 SETUP CHECKLIST 65 APPENDIX 1 66 Program Planning Worksheet 66 ...

Page 4: ...ote 1 Serious injury is defined as bodily wounds electrocution bone breaks fractures or poisoning which may cause debilitation requiring extended hospitalization and or outpatient treatment Note 2 Minor injury is defined as bodily wounds or electrocution which will not require extended hospitalization or outpatient treatment Note 3 Property damage is defined as damage to facilities equipment build...

Page 5: ...on General Caution Caution Shock Hazard Caution Burn Hazard Caution Do Not Heat Without Water Caution May Leak Water Caution Water Only Caution Toxic Chemicals Restriction General Restriction No Open Flame Do Not Disassemble Do Not Touch Action General Action Required Connect Ground Wire Level Installation Required Disconnect Power Inspect Regularly ...

Page 6: ... power cable Operating unit with the power cable bundled or otherwise tangled may cause power cable to overheat and or catch fire DO NOT damage power cable Damaging the power cable by forcibly bending pulling or twisting may cause fire or electric shock to the operator NEVER process explosive or combustible substances Attempting to process use explosive or combustible substances in near unit may c...

Page 7: ...o so may cause abnormal vibrations or noise resulting in possible complications and or malfunction Approximate weights DE DT411 approx 200kg DE DT611 approx 270kg Handle unit with care Transportation and installation should always be done by two or more people 3 Install in a safe location In the event of an earthquake or other unforeseen incident equipment may unexpectedly shift or fall causing in...

Page 8: ...oisture Failure to do so may result in control mechanisms becoming wet causing malfunction electrical shock and or fire 9 Install in a location free of flammables and explosives Never install near flammables or explosives Unit is NOT fire or blast resistant Simply switching the main power switch ELB ON or OFF can produce a spark which could relay during operation causing a fire or explosion when n...

Page 9: ...t risk damage to power cable by positioning it under desks or chairs or by allowing it to be pinched in between objects Doing so may cause fire and or electrical shock Do not place power cable near kerosene electric heaters or other heat generating devices Doing so may cause power cable insulation to overheat be damaged and or catch fire which may result in electric shock Turn off main power switc...

Page 10: ...amber surface Use optional basket type racks for processing smaller items See P 60 16 Exhaust precautions When leaving exhaust damper open for ventilation during operation removing cover from the intake port is recommended Remove the three screws from port cover at the right side of unit and remove Store the screws and intake port for safekeeping and later use Before using exhaust damper for venti...

Page 11: ...ort Heat Vent Rating Production Label Cable Port Intake Port Heat Vent Leveling Foot Flow Meter Blank for N2 Gas Option Door Door Handle Control Panel Main Power Switch ELB Terminal Block Blank for Optional Outputs HEPA Filter Access Panel Heat Vent Power Cable Heat Vent ...

Page 12: ...9 3 COMPONENT NAMES FUNCTIONS Interior Structure Exhaust Port Temp Control Sensor HEPA Filter Sirocco Fan Fan Motor Caster Leveling Foot Heater Support Post Chamber Rack Rack Support ...

Page 13: ...while programmed operation is in progress Flashes while entering program settings 12 AUTO START Indicator Lamp Illuminates while auto start operation is in progress 13 AUTO START Indicator Lamp Illuminates while auto stop operation is in progress 14 MODE key Press to switch between operation modes on control panel 15 POWER key Press and hold to switch between unit idle and unit standby 16 DISPLAY ...

Page 14: ...e once a month or before extended perpetual operation Current time shows in control panel lower display when ELB is ON 3 Check Independent Overheat Prevention Device Confirm that IOPD temperature is set 20ºC above unit temperature setting Check IOPD performance before extended operations See Independent Overheat Prevention Device P 45 4 Check exhaust damper aperture Confirm that damper aperture is...

Page 15: ...t follow the steps below 1 Turn on power Turn ON the main power switch ELB located on the right panel of the DE DT series units Lower display on the control panel will show the time This indicates that the machine is in idle Press and hold to display the standby screen Upper display shows current temperature in the chamber while lower display shows current temperature setting This indicates that m...

Page 16: ...y time system Press to move cursor position 3 Press twice to restore initial screen once setting is completed Buzzer function selection 3 Set the date 4 Press 5 Set the current year using and press 6 Set month date using and press Press to move cursor position 4 Set clock 4 Press 5 Press and set clock using Press Enter time using 24 hour military time system Press to move cursor position 6 Press t...

Page 17: ...14 4 OPERATION PROCEDURE Mode Function Flow ...

Page 18: ...Temperature setting is shown in lower display Fan begins running runs when door is closed and stops whenever door is opened 2 Select constant temperature mode Press repeatedly if needed until FIXED TEMP lamp lights Fixed Temperature mode is factory default Once mode has been changed the last mode run will be selected on subsequent startups 3 Set temperature 1 Press Changeable digits flash in lower...

Page 19: ...er display in heat build phase Lower display in temperature stabilization Lower display in cooling phase 5 Pause stop operation Press to manually terminate operation Start screen will be restored Press to begin operation once again if desired Fan motor continues running regardless of wheter operation is stopped Press and hold to turn off control panel and stop fan ...

Page 20: ... CLOCK using and press 4 Set TIME setting range 0 99hr 59min or CLOCK 24 hour time system in upper display and press Example 1 Quick Auto Stop function set to timer Operation stops automatically 35 hours and 30 minutes after temperature setting is reached Example 2 Quick Auto Stop function set to clock Operation stops automatically at 15 00 3 00PM 5 AUTO STOP lamp lights and Auto Stop function beg...

Page 21: ... out or when stop time is reached operation stops lower display reads 7 Press to clear from display When operation stops and is cleared start screen is restored Fan motor continues running regardless of whether operation is stopped Press and hold to turn off control panel and stop fan motor ...

Page 22: ... allowing heat to escape countdown stops and unit once again enters wait period until heat builds to within deviation range once again Auto stop mode set to clock Wait function does not operate when auto stop mode is set to the clock Operation stops as soon as clock and set time agree regardless of when temperature setting is reached If a power failure occurs while auto stop mode is set to clock u...

Page 23: ...mperature and stop timer clock 1 Press 2 Select stop TIME or CLOCK lamp in upper left of lower display using and press 3 Set TIME setting range 0 99hr 59min or CLOCK 24 hour time system in upper display and press 4 Set temperature in lower display and press Example 1 Auto Stop mode set to timer Operation stops automatically 35 hours and 30 minutes after 250 temperature setting is reached Example 2...

Page 24: ...aining time display timer Stop time display clock Press again or wait about 10 seconds for screen to return to normal reading 5 Operation end 1 When timer runs out or when stop time is reached operation stops lower display reads 2 Press to clear from display When operation stops and is cleared start screen is restored Fan continues running regardless of whether operation is stopped Press and hold ...

Page 25: ... shown in upper display Temperature setting is shown in lower display Fan begins running runs when door is closed and stops whenever door is opened 2 Select Automatic Start mode Press repeatedly until both FIXED TEMP and AUTO START lamps light Constant Temperature mode FIXED TEMP is factory default Once mode has been changed the last mode run will be selected on subsequent startups 3 Set temperatu...

Page 26: ...ress to enter standby mode wait until operation begins at the selected time 2 The OPERATE lamp flashes and lower display will show remaining time until start or time at which operation will start Upper display shows current chamber temperature while lower shows remaining wait duration or operation start time When timer is selected a countdown to operation begins Temperature setting may be confirme...

Page 27: ...from flashing to lighted HEATER lamp lights and temperature begins building The quick auto stop function is inoperable during auto start mode 5 End operation Press to manually end operation Initial screen is restored Fan continues running regardless of whether operation is stopped Press and hold to turn off control panel and stop fan ...

Page 28: ... door is closed and stops whenever door is opened Programs must be entered prior to starting a programmed operation run For details on entering programs see Programming Procedure on P 28 Create as many as 99 programs and steps in total i e 11 programs with a maximum of 9 steps each Step repeats are not counted in this total 2 Select program mode Press repeatedly until PROGRAM lamp lights Lower dis...

Page 29: ...le if has not been set at the end step in a program Confirm whether has been set if program cycle does not start Operation cannot be started by pressing for program numbers which have not been entered The program pattern number current step number or remaining operation time may be monitored in the lower display by pressing repeatedly at any time during operation Program pattern monitoring screen ...

Page 30: ...eration end 1 When selected program cycle ends lower display shows and operation stops 2 Clear by pressing Initial screen is restored Fan continues running regardless of whether operation is stopped Press and hold to turn off control panel and stop fan ...

Page 31: ...ol unit will adjust itself to do so within the set timeframe When wait is set to ON for heating or cooling steps in program operation the process moves on to the next step as soon as temperature is within the wait deviation range 3 6 C of temp setting If wait is set to OFF however the process will proceed to the next step after time setting has passed regardless of whether temperature setting is r...

Page 32: ... set to factory defaults Screen status Procedure I II flashes III PROGRAM lamp flashes appearing in upper display indicates that steps for selected program have already been entered and finalized Last in flashes First in flashes Changes to 1 1 Enter program pattern in flashes and upper display shows signifying that program steps have not yet been entered ...

Page 33: ...efault TIME flashes in bottom left of lower display 1 5 Enter no repeat destination default REP flashes in bottom left of lower display 1 6 Enter no repeats default REP lamp flashes 1 7 Turn wait function waits until chamber temp is within 3 C 6 C of temp setting before beginning time countdown default WAIT lamp flashes 1 8 Set variable fan speed to Max default FAN lamp flashes ...

Page 34: ...tern STEP02 STEP03 STEP04 STEP05 STEP06 Enter parameters for STEPS 2 6 in the same manner as STEP 1 above Use to change cursor position and or to change parameter values Press any time while entering program to view remaining available steps will show in lower display Remaining steps will show in upper display 7 1 Enter program pattern TEMP lamp flashes 7 2 Enter C x5 7 3 Enter 00 hour 00 minute T...

Page 35: ... at x4 7 5 Enter repeats steps five times Repeat count may be set between 1 and 99 or to indefinite setting infinity x5 7 6 Turn wait function WAIT lamp flashes 7 7 Set setting to All setting lamps flash Press and hold 8 1 Enter program pattern TEMP flashes 8 2 Enter C x5 ...

Page 36: ...Enter No repeat destination 8 5 Enter No repeats 8 6 Set wait function to Wait lamp flashes 8 7 Set setting to All program setting lamps flash Always set to in the final step of programs Programs without set to will not be recognized as a complete program and will not run Duplicating and using the program planning worksheet on P 66 of this manual is recommended ...

Page 37: ...lashes in upper display while the lowest available program number i e shows with the number flashing in lower display Enter desired copy destination using and press Copied program has been replicated to the selected destination 1 4 Upper display shows OK with lower display showing source program number copy destination number i e and initial copy screen is automatically restored indicating program...

Page 38: ...ng in lower display Select a pattern number to delete using or select ALL using then press and hold 2 3 When begins flashing in upper display confirm and finalize by pressing 2 4 Upper display shows OK with lower display flashing the deleted program number i e and initial delete screen is automatically restored indicating program has been deleted successfully ...

Page 39: ... the system proceeds to next step when time setting is reached regardless of whether temperature setting is reached or whether chamber temperature falls below or exceeds the deviation zone When time is set beyond unit capacity to heat or cool e g too short unit proceeds to next step before temperature setting is reached Wait function should be set to ON for short ramp build times Example of estima...

Page 40: ...isplay while flashes in upper display 2 Using and enter password into upper display and press password is set at 11 and cannot be modified 3 Set keypad lock mode 1 Lower display shows while upper display shows This is the factory default setting 2 Use to select lock mode and finalize by pressing Keypad lock modes are as follows Key lock function disabled factory default All keys except and are dis...

Page 41: ...r temperature The 2 C calibration in the example above is applied over the entire temperature setting range DE411 611 0 260 C DT411 611 0 360 C Note that offset values may change slightly depending on sample specimen arrangement in the chamber and or temperature setting 1 Turn control panel off idle Turn main power switch ON Lower display shows current time If unit is in standby press and hold to ...

Page 42: ...old shows in lower display while flashes in upper display 2 Using and enter password into upper display and press password is set at 11 and cannot be modified 3 Select recovery setting 1 Press repeatedly until shows in lower display and press 2 Use to select recovery mode and press Recovery modes are as follows Operation resumes where it left off when power failure occurred Operation is terminated...

Page 43: ...sword 1 Press and hold shows in lower display while flashes in upper display 2 Using and enter password into upper display and press password is set at 11 and cannot be modified 3 Reset monitoring data Press repeatedly until shows flashing in lower display along with ENERGY indicator lamp Press to enter set reset menu Press scroll through the items in lower display and press to select one Accumula...

Page 44: ...Applicable value varies by utility company Contact the servicing utility authority to confirm what value should be used Press to change constant to with last flashing Change the emission factor using Press to finalize Press to go return Integrated CO2 Emission Press to change upper display from constant to flashing Press to reset CO2 emission data Press to return Press and hold to go back to initi...

Page 45: ...be modified 3 Back up restore or reset data Press repeatedly to scroll through the following items in lower display respectively backs up settings for the event of backup battery failure or accidental reset Press to change constant to flashing then press again to back up Press to return to menu restores cleared or reset data from backup As above to restore Resets all settings to factory default As...

Page 46: ...e stabilization Accumulated power consumption in MWh Shown in three digits up to 999 Accumulated power consumption in kWh Shown in three digits up to 999 Example If total kilowatt hours is 123 456 123 being in thousands of kW will be shown in the screen while 456 is shown in the next screen CO2 emissions volume in t tons Shown in three digits up to 999 CO2 emissions is calculated by multiplying th...

Page 47: ...and OFF Accumulated power on time in hours Last four digits of 5 shown x0000 Example If accumulated power on time is 50 067 hours the first screen will show 5 and next screen will show 67 Maximum total for this indicator is 65 535 Accumulated operation run time in hours First digit of 5 shown 0xxxx Accumulated operation run time is the sum total of hours aggregated between the start and end of ope...

Page 48: ...ion of IOPD is to keep DE DT unit from overheating NOT to protect test samples from damage Likewise it is NOT intended for protection against accident or injury resulting from the negligent use of explosives and flammables Factory defaults and setting ranges are shown below Model Factory default setting Setting range DE411 280ºC 0 300ºC DE611 280ºC 0 300ºC DT411 380ºC 0 400ºC DT611 380ºC 0 400ºC T...

Page 49: ... a local dealer or Yamato sales office for assistance Continuing to operate unit without removing object may cause fire or electric shock resulting in serious injury or death 5 Use extreme caution in handling samples following high temperature operation Sample process items are HOT Do not touch upon removal from chamber following high temperature operation Use heat resistant gloves and exercise ex...

Page 50: ...rd malfunction or failure Always remove processed test samples and close chamber door 5 DO NOT process corrosive items Do not process items containing corrosive chemicals of any kind Despite stainless steel chamber structure damage may nonetheless occur from exposure to strong chemicals 6 ALWAYS run equipment within specified temperature range Working temperature range is room temperature 15 C 260...

Page 51: ...ng incompatible test samples If test samples sensitive to silicone rubber by products are to be processed specially formulated fluoro rubber seals are available upon request Note that acids alkaline and halogenated solvents are corrosive to rubber Caution Substances which cause corrosion or damage to the silicon or fluoro rubber used in chamber door seals are shown in the Table 5 1 Do not process ...

Page 52: ...tic Anhydride Hydroquinone Nitrogen Chemical Compounds Nitromethane Nitroethane Nitropropane Nitromethane Nitroethane Nitropropane Ethylenediamine Dimethylaniline Ethanol amine Hydrazine Triethanol Amine Dimethyl Formamide Pyridine Piperidine Sulfur and phosphorus compounds Hydrosulfuric Hydrosulfuric Tributyl Phosphate Other Chemical Compounds Nickel Acetate Lead Acetate Zinc Acetate Tetraethyl L...

Page 53: ...rease heat and disperse moisture If moisture is allowed to collect and become trapped inside unit malfunction or electric shock may result Excessive moisture inside unit may likewise excelerate HEPA filter deterioration Do not attempt to process dripping wet or liquid samples 15 Samples specimens needing special attention Use caution when processing samples specimens which contain powder or small ...

Page 54: ...ion An accompanying odor may also be emitted but will subside with continued operation 19 DO NOT apply paint thinner alcohol or other solvents to equipment Never attempt to clean DE DT series units with paint thinner alcohol or solvents of any kind Doing so may cause coating to peel discoloration superficial damage and deformity to some components Note always turn off main power switch ELB prior t...

Page 55: ...OPD Run unit in constant temperture mode and allow temperature to stabilize Set the activation temperature for the IOPD to approximately 5 C below chamber temperature If overheating prevention device is functioning normally heater will shut off within few seconds and error code Er07 will appear in the upper display An alarm will also sound and ERROR lamp will illuminate Main power switch ELB and o...

Page 56: ...reserving the global environment Major components and materials comprising DE DT series units are listed in the table below Component Material Structural Exterior Chrome free electrogalvanized carbon steel sheet metal finished in chemical proof baked on coating Chamber Stainless steel sheet metal Heat Insulation Ceramic fiber glass wool Door seal Silicon rubber HEPA Filter Stainless steel glass wo...

Page 57: ...Faulty or Disconnected Heater Line May occur when the power supply is changed during installation or when unit is transported Open phase in power supply confirm whether 3 phase power supply is connected properly While in operation all models Heater line faulty or severed Faulty current transformer CT sensor Drop in supply voltage Contact original dealer of purchase Fan Motor Failure Fan motor malf...

Page 58: ...t and confirm whether there is a change in data code on EEPROM Change data code on EEPROM Replace backup battery Contact original dealer of purchase if this error cannot be cleared after completing above items Door Open Door is open NOT a malfunction flashes in lower display and heater fan motor are shut off to maintain operator safety while door is open Closing the door clears the flashing indica...

Page 59: ...er supply Replace control board Fan does not operate when control panel is powered on unit in standby Fan motor malfunction Door open Replace fan motor Close door Temperature in chamber does build IOPD and or built in self diagnosis function has shut heater circuit down error code displayed Refer to Table 8 1 this chapter Temperature reading is erratic Heavily fluctuating ambient temperature Power...

Page 60: ...g information is required for all repairs Model name Serial Number Date year month day of purchase Description of problem in as much detail as possible Guaranteed Supply Period for Repair Parts Guaranteed maximum supply period for repair parts is 7 seven years from date of discontinuation for DE DT series ovens Repair parts is defined as components which when installed allow for continued unit ope...

Page 61: ...Insulation Material Glass wool Door Single side left swing Heater Stainless steel tube heater with fins Heater capacity 2 5kW 3 6kW 3 6kW 5 2kW Fan motor Stainless steel sirocco fan condenser motor 400W Differential gauge Analog type colored scale 0 300Pa Cable port I D φ33mm right side Exhaust port Manual exhaust damper O D φ61mm top panel Casters Universal swivel caster no stoppers Adjustable le...

Page 62: ...ure setting range 0 300 Phase reversal relay Fan motor reverse rotation detection Door switch Door open fan motor and heater circuit OFF Door closed fan motor and heater circuit ON Standard Internal dimensions Width 4 Depth Height 450mm 450mm 450mm 600mm 600mm 600mm 450mm 450mm 450mm 600mm 600mm 600mm External dimensions Width 4 Depth Height 700mm 1025mm 1570mm 850mm 1175mm 1720mm 700mm 1025mm 157...

Page 63: ...stacked on standard stainless steel wire racks 212925 ODT14 DE DT611 Sheath Sensor K thermocouple 212946 ODT48 All Additional temperature sensor for confirming temperature in chamber or temperature of samples May be connected to optional memory recorder Silicon Plug for 1 opening 212947 ODT52 DE models only Silicon rubber plug for sealing gaps caused by sensors inserted through cable port φ2mm ope...

Page 64: ...onitored temperature as measured by unit main controller PV objective temperature while in operation SV heater output ratio MV 212939 ODT42 DE DT611 Power cord 10m 212940 ODT44 All 10m substitution power cable for main unit No plug included Auto damper 212928 ODT22 DE DT411 Electronic damper allowing exhaust port aperture and air flow to be controlled automatically by motor and control circuit in ...

Page 65: ...62 12 WIRING DIAGRAM DE411 611 DT411 611 Circled numbers indicate wire markers Dotted lines indicate optional items ...

Page 66: ...ice H1 2 3 Heaters TH1 1 Independent Overheat Prevention Device sensor CT1 2 3 Current sensing element TH1 2 Temperature control sensor TF Transformer TF2 Transformer Optional portion Symbol Component Symbol Component ELB101 Earth Leakage Breaker w wire lead OPB Type V option board ES101 Emergency stop button T103 Auto damper terminal block T101 External output terminal block DM101 Auto damper mot...

Page 67: ...rchlorates Potassium Peroxide Sodium Peroxide Barium Peroxide and other inorganic peroxides Potassium Nitrate Sodium Nitrate Ammonium Nitrate and other nitrates Sodium Chlorite and other chlorites Calcium Hypochlorite and other hypochlorites Flammable Substances Ethyl Ether Gasoline Acetaldehyde Propylene Chloride Carbon Disulfide and other substances with ignition point at a degree 30 or more deg...

Page 68: ...onfirm facility power source rating meets unit requirements 2 Pre operation Procedures 7 Connect power cable to proper power supply 9 Ground wire must be connected 10 Specifications Power Supply Required 5 6 7 58 2 Operation Start operation 2 Pre operation procedures Installation Precautions 4 Operation procedure Setting Time Date Service Repair 4 7 12 57 Description 1 Operation Explain function o...

Page 69: ...Step Program No Step Temperature Setting Time Repeat Dstn Repetition Count Wait Event Fan Speed Damper Aperture End P 00 P02 TEMP TIME REP REP WAIT EVENT FAN DAMP END ST C Hr Min STEP COUNT ON OFF 1 2 3 1 10 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Remarks Optional items Feel free to duplicate and utilize this worksheet 100 200 300 0 300 200 100 0 Temperature sett...

Page 70: ...which are not expressly mandated by this manual Doing so may result in equipment malfunction serious personal injury or death Notice Instruction manual descriptions and specifications are subject to change without notice Yamato Scientific Co Ltd will replace flawed instruction manuals pages missing pages out of order etc upon request Operation Manual Clean Oven DE411 611 DT411 611 First Edition Ja...

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