Sanyo MDF-U333 Instruction Manual
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Sanyo MDF-U333 Instruction Manual

Biomedical freezer
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INSTRUCTION MANUAL
MDF-U333
MDF-U537
MDF-U537D
BIOMEDICAL FREEZER
MDF-U537/U537D
Table of Contents
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Summary of Contents for Sanyo MDF-U333

  • Page 1 INSTRUCTION MANUAL MDF-U333 MDF-U537 MDF-U537D BIOMEDICAL FREEZER MDF-U537/U537D...

  • Page 2: Table Of Contents

    1. No part of this manual may be reproduced in any form without the expressed written permission of SANYO. 2. The contents of this manual are subject to change without notice. 3. Please contact SANYO if any point in this manual is unclear or if there are any inaccuracies. SANYO Electric Biomedical Co., Ltd.

  • Page 3: Precautions For Safe Operation

    PRECAUTIONS FOR SAFE OPERATION It is imperative that the user complies with this manual as it contains important safety advice. Items and procedures are described so that you can use this unit correctly and safely. If the precautions advised are followed, this will prevent possible injury to the user and any other person.
  • Page 4 PRECAUTIONS FOR SAFE OPERATION WARNING Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to rain water. Only qualified engineers or service personnel should install the unit. The installation by unqualified personnel may cause electric shock or fire. Install the unit on a sturdy floor.
  • Page 5 PRECAUTIONS FOR SAFE OPERATION WARNING Never splash water directly onto the unit as this may cause electric shock or short circuit. Never disassemble, repair, or modify the unit yourself. Any such work carried out by an unauthorized person may result in fire or injury due to a malfunction. Disconnect the power supply plug if there is something wrong with the unit.
  • Page 6 Do not climb onto the unit or do not put articles on the unit. This may cause injury by tipping or damage to the unit. Put on dry gloves when you take out refrigerated articles from the freezer. Handing frozen contents or the inside walls with naked bands may cause frostbite.

  • Page 7: Cautions For Usage

    3. An access port to take out the measuring cable in the case is provided on the back or left side wall of the freezer. Be sure to replace the cap and heat insulator after take out cable or, the inside temperature cannot complete down, and frost may accumulate outside the port surroundings.

  • Page 8: Environmental Conditions

    ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC 1010-1): 1. Indoor use; 2. Altitude up to 2000 m; 3. Ambient temperature 5 C to 40 4. Maximum relative humidity 80% for temperature up to 31 C decreasing linearly to 50% relative humidity at 40 5.

  • Page 9: Freezer Components

    FREEZER COMPONENTS MDF-U333 MDF-U537/U537D...
  • Page 10 8. Defrost mark: When this is hidden by frost, defrost the freezer. Refer to page 23 for instructions. 9. Leveling foot: Serves to adjust the height and to settle the frame evenly.

  • Page 11: Control Panel And Keypad

    FREEZER COMPONENTS Control panel and keypad < MDF-U537D > 1. Alarm test key (ALARM TEST): Test key for alarm device. By pressing this key, the alarm lamp is flashed, remote alarm is activated and buzzer sound. This means all alarm function operate correctly.

  • Page 12: Installation

    Avoid direct cool airflow to the heat discharger on the back of the unit by an air-conditioning equipment. The reduction of the refrigeration capacity will be resulted from the unbalance of heat discharge of refrigerating circuit (MDF-U333). 3. A location away from heat generating sources Avoid installing the unit near heat-emitting appliances such as gas ranges or stoves.
  • Page 13 INSTALLATION Installation 1. Remove the packaging materials and tapes Remove all transportation packaging materials and tapes. Open the doors and ventilate the unit. If the outside panels are dirty, clean them with a neutral detergent and wipe it up with a wet cloth. 2.

  • Page 14: Optional Components

    Always disconnect the power supply to the unit prior to attachment of a temperature recorder in order to prevent electric shock or injury. An automatic temperature recorders is available for the freezer as the optional component. The type of the recorder is MTR-G85. For the attachment, the mounting kit is necessary.
  • Page 15 OPTIONAL COMPONENTS Model MDF-U333: The recorder is located on the top of the freezer. 1. Attach the recorder to the mounting kit by following the procedure shown in the manual enclosed with the mounting kit. 2. Fix the recorder on the top of the freezer by using 4 screws provided with the mounting kit.
  • Page 16 OPTIONAL COMPONENTS Model MDF-U537: The recorder is located on the left lower front of the freezer. 1. Attach the recorder to the mounting kit by following the procedure shown in the manual enclosed with the mounting kit. 2. Remove the screw on the cover for the recorder space on the lower front of the freezer.
  • Page 17 2. Fix the recorder on the top of the freezer by using 4 screws provided with the mounting kit. 3. Remove 2 rubber caps (outside and inside) on the access port on the back of the freezer and also remove the insulation in the port.
  • Page 18 OPTIONAL COMPONENTS Model MDF-U537D: < Attachment of MTR-G85 on the left lower front of the freezer > 1. Attach the recorder to the mounting kit by following the procedure shown in the manual enclosed with the mounting kit. 2. Remove the screw on the cover for the recorder space on the lower front of the freezer.

  • Page 19: Remote Alarm Terminal

    REMOTE ALARM TERMINAL WARNING Always disconnect the power supply cord before connecting an alarm device to the remote alarm terminal. The terminal of the remote alarm is installed at the back of the unit. The alarm is generated from this terminal.

  • Page 20: Temperature Setting

    TEMPERATURE SETTING Chamber temperature Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the sequence indicated in the table. The example in the table is based on the assumption that the desired temperature is -25 Note: The unit is set at the factory that the chamber temperature -30 Table 1.

  • Page 21: Key Lock Function

    TEMPERATURE SETTING 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 factory. Display Key lock is OFF Key lock is ON...

  • Page 22: Alarm Temperature Setting

    TEMPERATURE SETTING Alarm temperature setting This unit is provided with both high and low temperature alarms. The temperature at which the alarm is activated may be changed. The available set range for high temperature alarm is between +5 low temperature alarm against the chamber temperature. Note: The temperature alarm is set at ±10 Display High temperature alarm set...

  • Page 23: Alarm & Safety Functions

    2. The power failure alarm can be kept about 12 hours with the battery charged completely. 2-day operation of the freezer is needed to charge the battery full. 3. The chamber temperature is displayed for 5 seconds if the BUZZER key is depressed during the power failure alarm.

  • Page 24: Setting Of Alarm Resume Time

    SETTING OF ALARM RESUME TIME The alarm buzzer and remote alarm are silenced by pressing BUZZER key on the control panel during alarm condition. The buzzer and remote alarm will be activated again after certain suspension if the alarm condition is continued. The suspension time can be set by following the procedure shown in the Table 6 below.

  • Page 25: Routine Maintenance

    ・Remove dust from the power supply plug periodically. Defrosting Defrost the freezer whenever one of the defrost marks shown by 8 in the figure on page 8 is hidden by frost. Use the scraper provided for removing the frost if the freezer operation must be continued.

  • Page 26: Troubleshooting

    7. There is any heating source near the freezer. 8. A rubber cap and insulation for the access port are not set correctly. 9. You put too many unfrozen articles into the freezer compartment. When the unit does not accept changes of set-point temperature 1.

  • Page 27: Specifications

    For power failure alarm, Nickel hydrogen battery, DC 6V, 1100mAh, Automatic charge Optional component Mounting kit for automatic temperature recorder (MPR-S7, MDF-S740T) Note: Design or specifications will be subject to change without notice. Biomedical Freezer MDF-U333 MDF-U537 274 L 482 L Painted steel...

  • Page 28: Performance

    PERFORMANCE MDF-U333 Cooling performance Temperature control range Rated voltage Rated frequency Rated power consumption Noise level Maximum pressure MDF-U537 Cooling performance Temperature control range Rated voltage Rated frequency Rated power consumption Noise level Maximum pressure MDF-U537D Cooling performance Temperature control range...

  • Page 29: Safety Check Sheet

    Procedure to be adhered to in order to reduce safety risk indicated in b) below. Date : Signature : Address, Division : Telephone : Product name : Model : Biomedical Freezer MDF-U333/U537/U537D Please decontaminate the unit yourself before calling the service engineer. CAUTION Safety check sheet □Yes □Yes □Yes □Yes □Yes...
  • Page 30 7FB6P101288007 (5 April 2005) Recycled paper SANYO Electric Biomedical Co., Ltd. 10-15, Hongo 3-Chome Bunkyoku, Tokyo 113-8434 Japan Printed in Japan...

This manual is also suitable for:

Mdf-u537Mdf-u537d

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