Phcbi MDF-DC102VH Operating Instructions Manual
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Phcbi MDF-DC102VH Operating Instructions Manual

Ultra-low temperature freezer
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Please read the operating instructions carefully before using this product, and keep the operating
instructions for future use.
See page 64 for all model numbers.
Operating Instructions
Ultra-Low Temperature Freezer
MDF-DC202VH
MDF-DC102VH 
MDF-DC202VH
 

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  • Page 1 Operating Instructions Ultra-Low Temperature Freezer MDF-DC102VH  MDF-DC202VH   MDF-DC202VH Please read the operating instructions carefully before using this product, and keep the operating instructions for future use. See page 64 for all model numbers.

  • Page 2: Table Of Contents

    CONTENTS 1. BEFORE USING INTRODUCTION ........................4 SAFETY PRECAUTIONS ......................5 SYMBOLS ON UNIT ......................... 9 LABELS ON UNIT ........................10 SAFETY ENVIRONMENTAL CONDITIONS ................11 FOR SAFELY STORING SAMPLES ..................12 About backup cooling system ....................12 In the event of emergency ....................13 INSTALLATION SITE ......................
  • Page 3 3. MAINTENANCE & TROUBLESHOOTING ALARMS AND SELF-DIAGNOSIS ..................50 Alarm messages ........................50 Notification messages ......................51 Alarm and BUZZER STOP button ..................51 ROUTINE MAINTENANCE ..................... 52 Cleaning the exterior, interior, and accessories ..............52 Defrosting the chamber ....................... 53 CALIBRATION .........................

  • Page 4: Before Using

    1. BEFORE USING INTRODUCTION ■ Read the operating instructions carefully before using the product and follow the instructions for safe operation. ■ PHC Corporation takes no responsibility for safety if the product is not used as intended or is used with any procedures other than those given in the operating instructions.

  • Page 5: Safety Precautions

    1. BEFORE USING SAFETY PRECAUTIONS Be sure to observe the operating instructions as they contain important safety advice. For correct and safe use of the product, follow the precautions and procedures in these operating instructions carefully. Failure to do so could result in injury or damage to the product.
  • Page 6 SAFETY PRECAUTIONS   WARNING       Installation    Do not use the unit outdoors. Exposure to rain may cause an electric leakage and/or an electric shock.  Do not install the unit in a location where flammable or volatile substances are present.  ...
  • Page 7 1. BEFORE USING   WARNING         Power supply plug and cord    Never damage the power supply cord or power supply plug (by breaking, adapting, placing near a source of heat, bending with force, twisting, pulling, adding weight, or binding).
  • Page 8 SAFETY PRECAUTIONS   WARNING       When using the unit      Never put containers with liquid on top of the unit. This may cause an electric shock or short circuit if the liquid is spilled.  Never insert metal objects such as pins and wires into any vent, gap, or outlet on the  ...

  • Page 9: Symbols On Unit

    1. BEFORE USING   CAUTION        Do not touch stored samples in the chamber or inner walls of the chamber with bare   hands. Frostbite can occur at low temperatures. Wear insulated gloves when reaching into the chamber.

  • Page 10: Labels On Unit

    LABELS ON UNIT <Labels applied to the unit> To avoid accidents, users are advised to read carefully the hazard labels found at key locations on the interior and exterior of the unit. Possible Warning/Caution Type Warning/Caution Label Description of Danger Danger Location of Danger Personal...

  • Page 11: Safety Environmental Conditions

    1. BEFORE USING SAFETY ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC 61010-1): ■ Indoor use; ■ Altitude up to 2,000 m; ■ Temperature 5°C to 40°C; ■ Maximum relative humidity 80% for temperature up to 31°C decreasing linearly to 50% relative humidity at 40°C;...

  • Page 12: For Safely Storing Samples

    The following graphs show examples of the duration. [Example] Duration of time for which a full 30 kg liquid CO cylinder can keep the chamber at -70°C (no load) MDF-DC202VH MDF-DC102VH Ambient temperature ( ° C) Ambient temperature ( ° C) Notes: ●...

  • Page 13: In The Event Of Emergency

    ● Amount of dry ice To keep MDF-DC102VH (inner capacity: 84 L) to -70°C, firstly, put at least 5 kg of dry ice into the chamber. Then, add 0.5 kg of dry ice every hour. Wrap dry ice with paper such as newspaper put it in the chamber.

  • Page 14: Installation Site

    INSTALLATION SITE To run the freezer unit properly, the unit must be installed in a location which meets all the conditions described below. If the location does not meet these conditions, the specified performance of the unit may not be achieved or malfunctions and accidents may occur. ■...

  • Page 15: Installation

    (Fig. 2). Fixtures MDF-DC102VH Fig. 2 Preventing electric shock by earthing the unit When installing the unit, be sure to earth (ground) it. Earthing is necessary to prevent electric shock resulting from deterioration of electrical insulations.

  • Page 16: Freezer Components

    FREEZER COMPONENTS Main body The model below shows MDF-DC202VH (MDF-DC102VH also has an equivalent structure). Door Control Panel (→page 21) Space for temperature recorder (option) (→page 62) 8 (inside) Fixtures (→page 15) Back Side Right Side Remote alarm terminals (→page 18) ...
  • Page 17 3. Inner lid (MDF-DC102VH: 1 lid, MDF-DC202VH: 2 lids): Reduces the cold air leakage when the door is open. If the lids are not fitted properly, samples in the chamber may be damaged due to the temperature changes in the chamber.

  • Page 18: Accessories

    FREEZER COMPONENTS Accessories Check that following accessories are included with this unit. If any accessories are missing, contact our sales representative or agent. Name Appearance Usage For locking and unlocking the door (page 1 set 17). Scraper For removing frost in the chamber (page 53). Remote alarm terminals The alarm condition of the freezer can be transferred to a remote location by connecting an external alarm device (commercially available) to the remote alarm terminals.

  • Page 19: Start-Up Procedure

    1. BEFORE USING START-UP PROCEDURE Follow the procedure below to start test run or start operation of this product. Lower right side of the unit Check that the following switches at the lower right side of the unit are turned off: power switch, battery switch for power failure alarm, backup power switch (if the optional backup cooling system is ...

  • Page 20: During/After Power Failure

    DURING/AFTER POWER FAILURE Operation during power failure When the battery switch for power failure alarm is ON, the unit behaves as follows even during a power failure. ● The power failure alarm activates (page 50).* Press the BUZZER STOP button to silence the sound of the power failure alarm. If the ring back function is turned ON, the audible alarm sounds again when the power failure still continues after the set ring back time has elapsed (page 27).

  • Page 21: Settings And Operation

    2. SETTINGS AND OPERATION 2. SETTINGS AND OPERATION CONTROL PANEL The control panel is provided at the front upper right side of the freezer. It is composed of the power/alarm lamp, a display for showing the operation status of the freezer or setting screens, buttons for controlling the freezer, and a USB port.

  • Page 22: Home Screen

    CONTROL PANEL Home screen The following screen showing the freezer temperature appears on the display after turning on the power switch for the freezer. This screen is called “Home screen” and shows basic information about the status of the freezer. Home Screen 13：20 ...

  • Page 23: Menu Screen

    2. SETTINGS AND OPERATION Menu screen When the Home screen is displayed, pressing the MENU/HOME button on the control panel displays the Menu screen. On the Menu screen, menu items for configuring various setting or checking logs (log chart display, log export) are listed. 13：20 ...

  • Page 24: Setting For Basic Operation

    SETTING FOR BASIC OPERATION Setting temperature The temperature set point for the freezer can be set by following the steps below.  Settable range: -90°C to -40°C  Default value -80°C On the Home screen, press the MENU/HOME button. ►The Menu screen is displayed. 13：20 ...

  • Page 25: Setting High Temperature Alarm

    2. SETTINGS AND OPERATION Setting high temperature alarm High temperature alarm activates when the chamber temperature exceeds* the temperature (the value set to “Set Temp.” + the value set to “High Temp.”) to notify the user of high temperature status. * Since the chamber temperature displayed on the Home screen is the value rounded to the nearest integer, the high temperature alarm may activate when the value of the displayed chamber temperature is equal to the set alarm temperature.

  • Page 26: Setting Low Temperature Alarm

    SETTING FOR BASIC OPERATION Setting low temperature alarm Low temperature alarm activates when the chamber temperature falls below* the temperature (the value set to “Set Temp.” - the value set to “Low Temp.”) to notify the user of low temperature status. * Since the chamber temperature displayed on the Home screen is the value rounded to the nearest integer, the low temperature alarm may activate when the value of the displayed chamber temperature is equal to the set alarm temperature.

  • Page 27: Setting Ring Back Time

    2. SETTINGS AND OPERATION Setting ring back time Ring back is a function whereby the audible alarm sounds again when an alarm condition still continues after set ring back time has elapsed even though the alarm sound was stopped by pressing the BUZZER STOP button.

  • Page 28: Setting Temperature Alarm Delay Time

    SETTING FOR BASIC OPERATION Setting temperature alarm delay time Temperature alarm delay is a function whereby when the high temperature or low temperature alarm condition occurs, instead of activating audible alarm or remote alarm immediately, activates the alarm after the elapse of the set alarm delay time. ...

  • Page 29: Setting Alarm Sound Volume

    2. SETTINGS AND OPERATION Setting alarm sound volume You can set the sound volume of the audible alarm to low or high depending on the situation on the installation site.  Settable value: LOW or HIGH  Default value: To set the alarm sound volume, follow the steps below. On the Home screen, press the MENU/HOME button.

  • Page 30: Setting Remote Alarm

    SETTING FOR BASIC OPERATION Setting remote alarm The operation of the remote alarm when the Buzzer Stop button is pressed, to stop the audible alarm, can be selected as follows: ON: Not linked with the pressing of the BUZZER STOP button (remote alarm indication continues). OFF: Linked with the pressing of the BUZZER STOP button (remote alarm indication stops).

  • Page 31: Setting Compressor Delay Time

    2. SETTINGS AND OPERATION Setting compressor delay time Compressor delay time is the time from when the freezer is turned ON or the power comes back in the event of a power failure until when the compressor starts up. This freezer requires a large amount of electric power at the instant of compressor start-up.

  • Page 32: Keypad Lock

    KEYPAD LOCK The keypad lock function prevents the freezer settings from being incorrectly changed. When the keypad lock is turned ON using a password, the settings cannot be changed even if the buttons on the control panel are pressed to change the setting value on each setting screen. Setting keypad lock to ON ...

  • Page 33: Setting Keypad Lock To Off

    2. SETTINGS AND OPERATION Setting keypad lock to OFF To turn off the keypad lock setting, follow the steps below. On the Home screen, press the MENU/HOME button. ►The Menu screen is displayed. Menu            LOCK  13：20 ...

  • Page 34: Other Settings

    OTHER SETTINGS Setting date format You can set the format of date that will be displayed on the screen and written in log files.  Settable value: YY/MM/DD (Year/Month/Day) or DD/MM/YY (Day/Month/Year)  Default value: YY/MM/DD (Year/Month/Day) To set the date format, follow the steps below. On the Home screen, press the MENU/HOME button.

  • Page 35: Setting Date

    2. SETTINGS AND OPERATION Setting date You can set the current date by following the steps below. On the Home screen, press the MENU/HOME button. ►The Menu screen is displayed. Menu  13：20      Set Temp.        -80  C   ...

  • Page 36: Setting Time

    OTHER SETTINGS Setting time You can set the current time by following the steps below. Notes: ▪ The time is expressed using a 24-hour clock. ▪ It is advisable to set the right time regularly since an error of about 1 minute may be observed within a month.

  • Page 37: Setting Daq

    2. SETTINGS AND OPERATION Setting DAQ The DAQ setting is required when the optional interface board (page 63) is installed. Settable items are as follows. For installing the interface board, contact our sales representative or agent. Item Details Settable range Default value Enter an ID value (1 to 255) that is not used for other 000: OFF...
  • Page 38 OTHER SETTINGS Setting DAQ speed 1) Move the cursor to DAQ Speed using the up/down button (△▽) [Fig.4], DAQ Setting      DAQ ID  and press the ENTER button. ▶DAQ Speed  ►The DAQ Speed screen is displayed and current setting value is     Local / Remote  displayed [Fig.5].

  • Page 39: Temperature Log

    2. SETTINGS AND OPERATION TEMPERATURE LOG This product is provided with a function to store temperature log data. You can see the log data in chart format, or you can export the log data to a USB flash drive in CSV format. Setting log interval You can set the interval for storing the temperature log.

  • Page 40: Setting Device Id

    TEMPERATURE LOG Press the ENTER button. ►The value is saved and the display returns to the Data Log Setting screen. Date Log Interval  Note:         If the entered value is out of the settable range, the following   message is displayed. Press any button on the control panel to Invalid Value ...

  • Page 41: Displaying Temperature Log Chart

    2. SETTINGS AND OPERATION Displaying temperature log chart The temperature log data stored in the freezer can be displayed in a chart format. On the Home screen, press the MENU/HOME button. ►The Menu screen is displayed. Menu  13：20      Set Temp.        -80  C ...

  • Page 42: Operation On The Temperature Log Chart

    TEMPERATURE LOG Operation on the temperature log chart On the temperature log chart, you can scroll up and down, specify the date of the log data, and export the temperature log data currently displayed on the chart to the USB flash drive in CSV format. To do one of these operations, select the item on the chart by moving the cursor using the left/right buttons () on the control panel.
  • Page 43 2. SETTINGS AND OPERATION Press the ENTER button. ►The temperature log chart recorded on the specified date is displayed. Note: If a date which does not exist in the calendar is selected, the following message is displayed. Press any button on the control panel to return to the Date Select screen [Fig.3] and change the date. Date Select ...
  • Page 44 TEMPERATURE LOG Notes: ● When the device ID has not been set, default value “000000” is used for the device ID. ● If the file names are duplicated, older data is overwritten with new data. ● The temperature log data stored in the freezer is not deleted even if the temperature log data is exported to the USB flash drive.

  • Page 45: Exporting Temperature Log Data

    2. SETTINGS AND OPERATION Exporting temperature log data You can export the temperature log data on a specified date (24 hours) or all the temperature log data stored in the freezer to a USB flash drive inserted in the USB port in CSV format. Insert a USB flash drive into the USB port.
  • Page 46 TEMPERATURE LOG Press the ENTER button.   Data Log Export          ►The temperature log data during the selected period is exported.   During the export process, “Exporting...” is displayed on the screen [Fig.5]. Exporting...      When “Export complete” is displayed on the screen [Fig.6], press any [Fig.5]  ...

  • Page 47: Alarm Log

    2. SETTINGS AND OPERATION ALARM LOG This product is equipped with a function to store alarm log data. ● Up to about 255 events can be stored. When the number of events exceeds the maximum number, the oldest event data is overwritten with the new data. ●...

  • Page 48: Exporting Alarm Log Data

    ALARM LOG Exporting alarm log data You can export the alarm log data on a specified date (24 hours) or all the alarm log data stored in the freezer to a USB flash drive inserted in the USB port in CSV format. Insert a USB flash drive into the USB port.
  • Page 49 2. SETTINGS AND OPERATION Press the ENTER button.   Alarm Export  ►The alarm log data during the selected period is exported.           During the export process, “Exporting...” is displayed on the screen [Fig.5]. Exporting...  When “Export complete” is displayed on the screen [Fig.6], press any  ...

  • Page 50: Maintenance & Troubleshooting Alarms And Self-Diagnosis

    3. MAINTENANCE & TROUBLESHOOTING ALARMS AND SELF-DIAGNOSIS When the freezer is in an alarm condition or in a condition to be noticed, the situation is notified to the user by an Alarm message or Notification message on the Home screen, audible alarm sound, alarm lamp, and temperature indication.

  • Page 51: Notification Messages

    3. MAINTENANCE & TROUBLESHOOTING Notification messages There is a possibility of failure other than the cooling performance. The chamber temperature is controlled. If this status continues, the alarm may not activate in the case of any failure. Contact our sales representative or agent.

  • Page 52: Routine Maintenance

    ROUTINE MAINTENANCE Cleaning the exterior, interior, and accessories • Clean the unit once a month. Regular cleaning keeps the unit in good condition. • Use a dry cloth to wipe down the outside and inside of the unit and all accessories. If the outside panels are dirty, clean them with a diluted neutral dish-washing detergent (using an undiluted solution of detergent may cause the unit’s plastic areas to crack.

  • Page 53: Defrosting The Chamber

    3. MAINTENANCE & TROUBLESHOOTING Defrosting the chamber  Never damage the chamber walls when removing frost. It may cause explosions and/or a fire in case of refrigerant leakage.  Wear protective gloves and a mask when handling frozen items or cleaning the WARNING chamber.

  • Page 54: Replacement Of Consumable Parts

    REPLACEMENT OF CONSUMABLE PARTS  The replacement of the battery for power failure alarm and battery for backup cooling system should be performed by a qualified engineer or service WARNING personnel only. The replacement of the battery involves the risk of electric shock. «Important»...

  • Page 55: Troubleshooting

    3. MAINTENANCE & TROUBLESHOOTING TROUBLESHOOTING If the freezer does not seem to be working properly, check the following solutions before making a service call. <Attention> If the problem is not resolved by checking the following causes/solutions or if the problem is not shown in the table below, contact our sales representative or agent.
  • Page 56 TROUBLESHOOTING Problem Cause/Solution The chamber does not ■ A large amount of warm material has been put in the chamber. cool down enough. ■ There is a large amount of frost built up in the chamber. ■ The door is frequently opened. ■...

  • Page 57: Disposal Of Unit

    The total GWP in the following table was calculated based on the calculation method defined in the European F-gas regulation. This product contains mixed HC refrigerant (R-600/R-170/R-50). Refrigerant (net) Weight of CO equivalent Product name (kg) (tonnes) MDF-DC102VH 0.080 0.0004 MDF-DC202VH 0.110 0.0007...
  • Page 58 DISPOSAL OF UNIT Disposal of Old Equipment and Batteries Likvidácia opotrebovaných zariadení a batérií Only for European Union and countries with recycling systems Len pre Európsku úniu a krajiny so systémom recyklácie These symbols on the products, packaging, and/or Tieto symboly uvádzané na výrobkoch, balení a/alebo v accompanying documents mean that used electrical and sprievodnej dokumentácii informujú...
  • Page 59 3. MAINTENANCE & TROUBLESHOOTING Likvidace použitých zařízení a baterií Vanhojen laitteiden ja paristojen hävittäminen Jen pro státy Evropské unie a země s fungujícím systémem recyklace a Vain EU-jäsenmaille ja kierrätysjärjestelmää käyttäville maille zpracování odpadu. Tämä symboli tuotteissa, pakkauksessa ja/tai asiakirjoissa Tyto symboly na výrobcích, jejich obalech a v doprovodné...
  • Page 60 DISPOSAL OF UNIT Smaltimento di vecchie apparecchiature e batterie usate Eliminação de Equipamentos Usados e Baterias Solo per Unione Europea e Nazioni con sistemi di raccolta e Apenas para a União Europeia e países com sistemas de reciclagem smaltimento Estes símbolos produtos, embalagens,...
  • Page 61 3. MAINTENANCE & TROUBLESHOOTING Avfallshantering av produkter och batterier Brukerinformasjon om innsamling av gammelt utstyr og brukte batterier Endast för Europeiska Unionen och länder med återvinningssystem Bare for EU og land med retursystemer Dessa symboler på produkter, förpackningar och/eller Slike symboler på produkter, emballasje, og/eller på medföljande dokument betyder att förbrukade elektriska och medfølgende dokumenter...

  • Page 62: Options & Specifications Etc

    4. OPTIONS & SPECIFICATIONS etc. OPTIONAL COMPONENTS Temperature recorder (MTR-85H, MTR-G85C) The chamber temperature can be recorded and checked by installing the optional temperature recorder MTR-85H or MTR-G85C. Contact our sales representative or agent for the purchase of the temperature recorder. Main specifications of temperature recorder MTR-85H MTR-G85C...

  • Page 63: Specifications

    4. OPTIONS & SPECIFICATIONS etc. SPECIFICATIONS Ultra-Low Temperature Freezer Ultra-Low Temperature Freezer Product name MDF-DC102VH MDF-DC202VH Width 558 mm (22.0 in.) 1018 mm (40.1 in.) External Depth 688 mm (27.1 in.) 688 mm (27.1 in.) dimensions   Height 993 mm (39.1 in.) 993 mm (39.1 in.)

  • Page 64: Performance

    PERFORMANCE Ultra-Low Temperature Freezer Product name MDF-DC102VH MDF-DC102VH-PE Model number Cooling performance -86°C at the center of the chamber (ambient temperature; 30°C, no load)* -90°C to -40°C Temperature settable range -86°C to -40°C (ambient temperature; 30°C, no load) Temperature control range...

  • Page 65: Safety Check Sheet

    4. OPTIONS & SPECIFICATIONS etc. SAFETY CHECK SHEET Please copy and fill out this form before servicing. CAUTION Hand over this form to the service engineer for their and your safety. Safety check sheet 1. Stored material □ □ □ Risk of infection: Maybe □...
  • Page 66 MEMO...
  • Page 68 1-1-1 Sakada, Oizumi-machi, Ora-gun, Gunma 370-0596, Japan Printed in Japan LDCL077802-1 © PHC Corporation 2023 J0223-10623...

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