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DAIHAN Scientific, Ultra Low Temperature Smart Freezer                                                                                          18/40 

4. Products Management Method                                                                                                                     

      4.2 Maintenance and Management 

 

Ultra Low Temperature Smart Freezer was manufactured with the consideration of 

various situations that may occur during the operation. However, for long-term use with 

stable performance, please observe the following precautions: 

                                                                 

 

 

 

1.

 

Please use rated power of AC 120V, 60Hz or AC 230V, 50/60Hz, single-phase. 

2.

 

This product should be operated in a room with as little moisture as possible, and the room 

temperature should be maintained between 5°C and 40°C. 

3.

 

If this product is not used for long periods of time, it should be stored by packaging after 

disconnecting the plug and drying it. 

4.

 

If  parts  should  be  replaced  due  to  failure  during  use,  only  genuine  parts  provided  by 

DAIHAN Scientific should be used. 

5.

 

When  cleaning  the  product,  please  unplug  this  product  and  take  out  the  conservation 

samples from the instrument, and wipe it off with a dry cloth and dry it while leaving the 

door open after washing it out with warm water and some neutral detergent.   

6.

 

Please apply the polish for commercial use on the outside of the cryogenic chamber in this 

product.    Please be careful so that the glazing agent is not stained on the plastic parts in 

the refrigerator.   

7.

 

The condenser and the refrigerator are very hot. Please be careful not to touch them when 

managing them.   

8.

 

Failures due to use beyond normal limits cannot be maintained or repaired. 

9.

 

Please  clean  up  at  least  once  in  a  year  with  a  vacuum  cleaner  or  a  brush  to  remove  the 

dust  of  the  condenser  and  both  galleries  mounted  inside  the  bottom  of  the  cryogenic 

freezer. 

10.

 

Please pull the plug out from the freezer if you do not use it for long periods, and dry it by 

leaving  the  door  open  for  a  few  days  after  cleaning  inside  the  freezer  so  that  mildew  or 

smells do not form.   

11.

 

Frost  can  occur  according  to  the  flow  of  outside  air  in  the  interior  door  and 

inside  the  chamber.  Please  regularly  check  the  thickness  of  the  frost,  and 

remove the frost at least once every six months. 

 

Summary of Contents for UniFreez U25

Page 1: ...edical Instruments CE RoHS Certified PL Insurance Validation IQ OQ Service User Manual Version 2 2 1 written for UniFreezTM U25 models UniFreezTM U25 Ultra Low Temperature Freezer 25Lit DAIHAN Sci com...

Page 2: ...DAIHAN Sci com or ALL forLAB com Shopping Mall DAIHAN Scientific Ultra Low Temperature Smart Freezer 2 40...

Page 3: ...4 1 2 Product Introduction 5 1 3 Product Configuration 6 2 Installation 2 1 Product Installation 7 2 2 Product Specifications 8 3 Product Usage 3 1 Product Usage 9 3 2 Names of Each Part 13 3 3 Usage...

Page 4: ...after being well acquainted with the meaning Warning Failure to follow the instructions may result in injury Caution Failure to follow the instructions may result in product failure Proximity Caution...

Page 5: ...r leakage and the intrusion of the outside temperature and maximize the insulation effect because of the rigid polyurethane foam insulation and the insulation for inside the door 3 layers of insulatio...

Page 6: ...on Manual Model UniFreezTM U300 Ultra Low Temperature Freezer Upright type 86 UniFreezTM U400 Ultra Low Temperature Freezer Upright type 86 UniFreezTM U500 Ultra Low Temperature Freezer Upright type 8...

Page 7: ...ces where it will be subjected to the inflow of moisture or organic solvents on the regulator part or inside of the body 7 This product was manufactured for normal operation at a rated voltage so plea...

Page 8: ...stem Controller Digital Feedback Controller Max Q ty of Racks None Only 10 15 boxes are applicable Material Internal Stainless Steel 304 External Powder Coated Steel Plate Inner Door Powder Coated Sta...

Page 9: ...ck should be wiped with a soft cloth and then used after mounting it before connecting the power of this product Please put the sample into the instrument after the instrument starts to operate and it...

Page 10: ...ut your hands into the mechanical room air outlet or inlet Since the fan is operating at high speed it may cause burns or injury Please do not hang on the door It may cause personal injury or short ci...

Page 11: ...e move it so that the power cord and the product are not damaged after disconnecting the power plug from the electrical outlet It may cause electrical shock or ignition due to damage to the cord If re...

Page 12: ...nion s Waste Electrical Electronic Equipment WEEE Directive 2002 96 EC l When reinstall products When moving this product please consult with a DAIHAN Scientific Inc Service Center or Nationwide Agent...

Page 13: ...tside NO Names Leakage Breaker Power Switch Locking Function Door Handle Block Condenser No Pin Filter Free Mechanism Controller Inlet of LCO2 Gas Automatic Valve of LCO2 Gas Fig 3 2 1 UniFreezTM U25...

Page 14: ...luminated when a over temperature alarm is activated AL 1 2 Illuminated when the event output is ON COM Status of RS232 C communication Illuminated in available status RS232 C communication is served...

Page 15: ...wer supply such as a power outage Please start operation after at least one minute when you turn ON the power supply again Set temperature Following to supply electricity power to main controller the...

Page 16: ...AN Scientific Co Ltd for A S request 1 LCO2 Injection WUF Ultra Low Temperature Freezer uses the high qualified parts and has the simplest structure for superior temperature stabilization in the chamb...

Page 17: ...7 X h52mm C11 002 Hard Board Box with PolyPropylene Divider 81 Holes 127 X 127 X h52mm DH KT622 Tem Chart Recorder KT622 with C657 Chart Paper DH C657 Chart Paper C657 60 Charts for 420 days recording...

Page 18: ...vation samples from the instrument and wipe it off with a dry cloth and dry it while leaving the door open after washing it out with warm water and some neutral detergent 6 Please apply the polish for...

Page 19: ...gh temperature exists close to the freezer Confirm that the ventilation around the instrument is good The same abnormal status as above does not exist but if the temperature does not fall well please...

Page 20: ...bout all functions before shipment 2 This instrument is warranted for 2 years from purchasing date 3 A breakdown caused by customer s improper use or natural disaster is excepted from this warranty 4...

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