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24

 

 ROUTINE MAINTENANCE 

 

    Defrosting of inside wall

 

 
The frost is built at the upper portion of the chamber and inner door.    The excessive frost possibly make 
some gap between the cabinet and the magnetic door gasket, which may cause poor cooling.    Remove 
the frost on the inner door with a scraper enclosed with the unit.  Following shows the procedure for 
removing the chamber frost. 

Note:

    For removing the frost, do not use a tool with sharp edge such as a knife or a screw driver. 

 
1. 

Turn off the backup cooling kit if applicable.

 

 
2.

 Take out and transfer all the contents to another freezer or a container which is refrigerated by liquid 

carbon dioxide or dry ice. 

 
3. 

Turn off the power switch and battery switch of the 

freezer.

 

 
4.

 Open the outer door and inner door.  Remove the 

inner door by lifting up as shown in the figure.   

 
5.

 Leave the freezer as it is. 

 

6.

 The water accumulated on the bottom of the chamber 

should be wiped up with a dry cloth. 

 
7. 

After cleaning the chamber and inner door, replace 

the inner door and start up the unit according to the 
procedure on page 14. 

 
8.

 Put back the articles into the sufficiently cooled 

freezer compartment. 

 
9. 

Turn on the backup cooling kit if it is provided. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

Summary of Contents for KM-DU53Y1

Page 1: ...ese instructions carefully before using this product and save this operating instructions for future use See page 42 for model number KM DU73Y1 KM DU53Y1 Ultra Low Temperature Freezer Operating Instructions KM DU73Y1 ...

Page 2: ... 20 AIR INTAKE PORT P 20 MONITOR OF FREEZER STATUS P 21 ALARMS SAFETY FUNCTIONS P 22 ROUTINE MAINTENANCE P 23 Cleaning of cabinet P 23 Cleaning of condenser filter P 23 Defrosting of inside wall P 24 Cleaning of air intake port P 25 CALIBRATION P 25 TROUBLESHOOTING P 26 DISPOSAL OF UNIT P 27 Recycle of battery P 27 Decontamination of unit P 27 DISPOSAL OF BATTERY P 32 TEMPERATURE RECORDER OPTION P...

Page 3: ...uctions will be subjected to change without notice due to the improvement of performance or functions Contact our sales representative or agent if any page of the operating instructions is lost or page order is incorrect Contact our sales representative or agent if any point in this operating instructions is unclear or if there are any inaccuracies No part of this operating instructions may be rep...

Page 4: ...y to personnel and damage to the unit and associated property Symbol shows this symbol means caution this symbol means an action is prohibited this symbol means an instruction must be followed Be sure to keep this operating instructions in a place accessible to users of this unit Some warning and or caution labels are attached on the unit Following shows the description of such labels NOTE As with...

Page 5: ...ower supply outlet is not grounded it will be necessary to install a ground by qualified engineers Never ground the unit through a gas pipe water main telephone line or lightning rod Such grounding may cause electric shock in the case of an incomplete circuit Connect the unit to a power source as indicated on the rating label attached to the unit Use of any other voltage or frequency other than th...

Page 6: ...y cause electric shock or fire When removing the plug from the power supply outlet grip the power supply plug not the cord Pulling the cord may result in electric shock or fire by short circuit Disconnect the power supply plug before moving the unit Take care not to damage the power cord A damaged cord may cause electric shock or fire Disconnect the power plug when the unit is not used for long pe...

Page 7: ... insertion may cause a heat or ignition Never store corrosive substances such as acid or alkali in this unit if the container cannot be sealed These may cause corrosion of inner components or electric parts Check the setting when starting up of operation after power failure or turning off of power switch The stored items may be damaged due to the change of setting Be careful not to tip over the un...

Page 8: ...nterior Flammable refrigerant label Sample damage Chamber temperature Interior Forgets to close a door and latch Sample damage Chamber temperature Interior Rise in temperature is prevented Personal injury Negative pressure release Interior Door cannot open SYMBOLS ON THE UNIT The symbols are attached to the ultra low temperature freezer The following table describes the symbols This symbol is atta...

Page 9: ...els of OVERVOLTAGE CATEGORY II Temporary OVERVOLTAGES occurring on the mains supply Applicable pollution degree of the intended environment POLUTION DEGREE 2 in most cases INTENDED USE AND PRECAUTIONS This equipment is designed for low temperature storage of human cells organs plasma and DNAs The effective storage period depends on the sample condition and storage temperature It is necessary to de...

Page 10: ...9 FREEZER COMPONENTS Rear side 11 inside 7 inside 1 2 3 6 8 12 7 4 9 10 13 5 17 18 16 15 Power cord 14 KM DU73Y1 ...

Page 11: ...ided to facilitate moving of the cabinet For the installation adjust the leveling feet so that the front 2 casters cannot contact with the floor 11 Condenser filter behind the grille This filter prevents the dust from accumulating on the condenser The dusty condenser filter may cause failure of refrigerating device Clean the condenser filter once a month See page 23 Routine maintenance for the cle...

Page 12: ... of key lock can be selected by pressing this key in the key lock setting mode By pressing this key for more than 5 seconds in the temperature display mode leads setting mode for alarm temperature alarm resume time compressor delay time and door alarm delay time Refer to page 16 17 18 and 19 for details respectively 8 Digit shift key Pressing this key in the setting mode causes the changeable digi...

Page 13: ...ion or noise Unstable condition may cause vibration or noise WARNING Install the unit on a sturdy floor If the floor is not strong enough or the installation site is not adequate this may result in injury from the unit falling or tipping over Select a level and sturdy floor for installation This precaution will prevent the unit from tipping Improper installation may result in water spillage or inj...

Page 14: ...ame to the wall with these fixtures and rope or chain Fig 2 4 Setting the shelves 3 shelves are packaged at the bottom of the chamber Set the shelves on the shelf stoppers at the standard location firmly The upward edge should be upside 5 Ground earth The ground earth is for preventing the electric shock in the case of the electrical insulation is somehow degraded Always ground the unit at the tim...

Page 15: ...ARM TEST with the battery switch off 8 After confirming the above you can put articles into the chamber in a small batch to prevent the temperature rise 9 Push the test switch to check the operation of backup cooling kit option goods when it is equipped NOTE Do not put too many warm articles in the chamber The temperature rise may cause the damage to the articles in the chamber WARNING Fix the she...

Page 16: ...erature is 86 o C when there is no load at the ambient temperature of 30 o C The temperature set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation KEY LOCK FUNCTION This unit is provided with the key lock function When the key lock is ON change of temperature setting through the key pad is not available The key lock is set in OFF at the...

Page 17: ... digit is flashed 5 Scroll the figure to 005 by using digit shift key and numerical value shift key When pressed the figure of settable digit changes When pressed the changeable digit is shifted 6 Press set key SET Alarm temperature is memorized and the current chamber temperature is displayed Note The alarm temperature is set 10 o C lower than the set temperature at the factory Table 4 Procedure ...

Page 18: ... is flashed 3 Set the figure to F25 with the digit shift key and numerical value shift key The settable digit is shifted When pressed the figure of settable digit changes 4 Press set key SET The current resume time is displayed The second digit is flashed 5 Scroll the figure to 020 with the numerical value shift key When pressed the figure of settable digit changes 6 Press set key SET The setting ...

Page 19: ...r 5 seconds The first digit is flashed 3 Set the figure to F05 with the numerical value shift key When pressed the figure of settable digit changes 4 Press set key SET The current delay time is displayed The first digit is flashed 5 Set the figure to 004 with the numerical value shift key When pressed the figure of the first digit changes 6 Press set key SET The delay time is memorized and the cur...

Page 20: ...e is displayed 2 Press numerical value shift key for 5 seconds The first digit is flashed 3 Set the figure to F04 with the numerical value shift key When pressed the figure of settable digit changes 4 Press set key SET The current delay time is displayed The first digit is flashed 5 Set the figure to 003 with the numerical value shift key When pressed the figure of the first digit changes 6 Press ...

Page 21: ...e outer door is closed and opened soon 1 Turn the cap on the left side counterclockwise about two laps Or remove the cap 2 Allow about twenty seconds before open the outer door 3 Close or replace the cap when the door operation is completed The outer door may not open in the above method when there are frost and ice in the air intake port In that case open the cap and check the frost inside the ai...

Page 22: ...nce or durability of refrigerating circuit Examination is air conditioning of installation site Notice of overload condition When the running rate of refrigerating circuit is higher than usual Status lamp STATUS lights 3 is displayed Decrease of cooling performance or durability of refrigerating circuit 1 This is likely to happen when a large amount of materials is stored Put articles in the chamb...

Page 23: ... temp are displayed alternately Intermittent tone Remote alarm If the cascade sensor is short circuited Alarm lamp is flashed E04 and chamber temp are displayed alternately Intermittent tone Remote alarm If the filter sensor is disconnected Alarm lamp is flashed E05 and chamber temp are displayed alternately Intermittent tone Remote alarm If the filter sensor is short circuited Alarm lamp is flash...

Page 24: ...Doing so can damage the electric insulation and cause failure The compressor and other mechanical part are completely sealed This unit requires absolutely no lubrication Note Always replace the inner attachments removed for the cleaning to keep the intended performance Cleaning of condenser filter This unit is provided with the filter check lamp on the control panel Clean the condenser filter when...

Page 25: ...kup cooling kit if applicable 2 Take out and transfer all the contents to another freezer or a container which is refrigerated by liquid carbon dioxide or dry ice 3 Turn off the power switch and battery switch of the freezer 4 Open the outer door and inner door Remove the inner door by lifting up as shown in the figure 5 Leave the freezer as it is 6 The water accumulated on the bottom of the chamb...

Page 26: ...ake port cleaning The outer door cannot be opened even if the cap on the air intake port is removed Remove the frost and ice with the stick for air intake port cleaning The frost and ice are built in the chamber Remove the frost and ice with the enclosed scraper CAUTION For removing the frost in the air intake port do not use a tool with sharp edge such as a knife or a screw driver CALIBRATION Dur...

Page 27: ...ked The condenser filter is clogged Always clean the condenser filter when the filter check lamp is lit The outer door is not shut tightly The inner door is not installed correctly The set temperature in the controller is not set properly The freezer is in the direct sunlight There is any heating source near the freezer A rubber cap and insulation are not set correctly on the access port You put t...

Page 28: ...w instructions when servicing or recycling Well ventilate the room to prevent refrigerant accumulation Keep fire away when the refrigerant is contained in the product Do not damage or break the pipework Recycle of battery The unit contains a rechargeable battery The battery is recyclable At the end of it s useful life check with you local solid officials option or proper disposal Label indication ...

Page 29: ...spose of them correctly at your local community waste collection recycling centre Please help us to conserve the environment we live in German Für EU Staaten Das Symbol und das erwähnte Wiederverwertungssystem gelten nur für die Länder der EU und nicht für andere Länder oder Gebiete in der Welt Die Produkte von Panasonic werden aus hochwertigen Materialien und Komponenten gefertigt die sich wieder...

Page 30: ...u éliminées de manière inappropriée peuvent s avérer potentiellement dangereuses pour la santé humaine et pour l environnement Cependant ces matières sont nécessaires au bon fonctionnement de votre appareil ou de votre machine Pour cette raison il vous est demandé de ne pas vous débarrasser de votre appareil ou machine usagé avec vos ordures ménagères Spanish PARA USUARIOS DE LA UNION EUROPEA El s...

Page 31: ...em recolha de lixo local Por favor ajude nos a conservar o ambiente Italian PER UTENTI UE Il simbolo e i sistemi di riciclaggio descritti di seguito si applicano esclusivamente ai paesi dell UE Questo prodotto Panasonic è stato progettato e realizzato con materiali e componenti di elevata qualità che possono essere riciclati e o riutilizzati Il simbolo di riciclaggio mostrato di seguito indica che...

Page 32: ...bij uw plaatselijk afvalinzameling recyclingcentrum in uw buurt Help ons het milieu waarin wij leven in stand te houden Swedish FÖR ANVÄNDARE INOM EU Den symbolmärkning och de återvinningssystem som beskrivs här nedan gäller länder inom EU och gäller inte länder i någon annan del av världen Din Panasonic produkt har konstruerats och tillverkats med delar och material av hög kvalitet som kan återvi...

Page 33: ...ock Disposal of nickel metal hydride battery 1 Turn off the power switch and battery switch then disconnect the power supply plug 2 As shown in the Fig 1 remove 5 screws fixing the side cover with a screw driver and remove the side cover 3 Remove 4 screws fixing the electrical box cover with a screw driver Fig 2 4 Disconnect the battery connector and remove 2 screws fixing the battery mounting pla...

Page 34: ...this operation the pen point is apart from the recording paper 2 Pull the cartridge out of the mounted position as shown in Fig 1 and Fig 2 3 Set a new recording paper in place on the rear bottom of the cartridge Set the hole on the recording paper in the cog of the recording paper driving assembly and feed the recording paper in the direction of the arrow by driving the cog wheel Fig 3 4 Adjust t...

Page 35: ...er of dry cell at the left bottom Fig 3 Set a dry cell in the case with its minus pole positioned backward 4 Close the case cover and replace the cartridge 5 Lift up the pen holder lever and close the cover Setting of ink pen 1 Open the cover and let down the pen holder lever With this operation the pen point is apart from the recording paper 2 Pull the cartridge out of the mounted position as sho...

Page 36: ...ide holes on the pen arm See to Fig 2 illustration 2 5 Press the two sides of the head clamp as indicated by the arrows to secure the ink pen See to Fig 2 illustration 3 From the side view the cartridge should fit perfectly on the arm Confirm that the pen arm is attached to both sides of the ink pen 6 After loading the ink pen return the pen lifter to the original position Confirm that the pen lif...

Page 37: ...the recording paper speed is set to 32 days The center of the recording paper is divided into 32 equal sections The lines extending from these lines serve as the 32 day time scale Fig 4 Stopping recording 1 Turn OFF the power switch 2 When recording is stopped for a prescribed period place the caps back on the ink pens to prevent the ink from evaporating Replacing the recording paper 1 Slightly ra...

Page 38: ...Recorder fixing Recorder sensor cover MTR 85H MTR G85C MDF S3085 KM DUP01SF1 KM DUP01SF1 Contact our sales representative or agent for the installation of a temperature recorder BACKUP COOLING KIT OPTION Following shows the time to keep chamber temperature at 70 o C by using an optional backup cooling kit Keep a liquefied CO2 cylinder at ambient temperature lower than 31 o C The above data is the ...

Page 39: ...itch of backup cooling kit BACKUP When turning on the backup cooling kit the backup standby lamp is brightened This means that the backup cooling kit is ready To stop the operation of the backup cooling kit turn off this switch 2 Test switch TEST This switch is for checking the operation of backup cooling kit Pressing this switch is resulted in the release of liquid carbon dioxide under any chambe...

Page 40: ...ner door MDF 7ID is installed Cooling performance 82 o C at the center of the chamber ambient temperature 30 o C no load An optional inventory rack IR 224U cannot be used when the small inner door is installed INTERFACE BOARD OPTION Installation of MTR 480 Contact our sales representative or agent for the installation of an interface board Note When a data transmitting function to the personal com...

Page 41: ...ation may cause injury or damage NOTE Only inventory rack IR 220U can be applied when the small inner door MDF 7ID is installed Shelf support Shelf stopper No 4 under second screw from the top There is a mark which hollowed at the shelf support front side No 3 under fifth screw from the top There is a mark which hollowed at the shelf support front side No 2 under third screw from the bottom There ...

Page 42: ...age side R 290 Low stage side R 170 Temperature controller Microcomputer control system Temperature display Digital display Thermal sensor Platinum resistance Pt 1000Ω Alarm High temp alarm Low temp alarm Power failure alarm Door alarm Filter alarm Remote alarm contact Allowable contact capacity DC 30 V 2 A Battery Nickel metal hydride battery DC 6 V 1100 mAh Auto recharge 5HR AAC Accessories 1 se...

Page 43: ...hamber ambient temperature 30 o C no load Temperature control range 50 o C to 86 o C ambient temperature 30 o C no load Power source AC 230 V 240 V 50 Hz AC 230 V 240 V 50 Hz Rated power consumption 790 W 820 W 700 W 740 W Noise level 52 dB A background noise 20 dB Maximum pressure 2 90 MPa Note Maximum cooling performance The chamber temp reaches 86 o C at ambient temp of 30 o C with noload ...

Page 44: ...unit Unit interior No contamination Decontaminated Contaminated Others 3 Instructions for safe repair maintenance of the unit a The unit is safe to work on b There is some danger see below Procedure to be adhered to in order to reduce safety risk indicated in b below Date Signature Address Division Telephone Product name Model Serial number Date of installation Ultra Low Temperature Freezer Please...

Page 45: ...apan 7FB6P151635001 S1012 11112 2012 11 01 EU countries only 0123 Panasonic Biomedical Sales Europe B V Nijverheidsweg 120 4879 AZ Etten Leur The Netherlands Panasonic Healthcare Co Ltd 2012 1 1 1 Sakata Oizumi Machi Ora Gun Gunma 370 0596 Japan ...

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