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INSTRUCTION MANUAL
MDF-U333
MDF-U537
MDF-U537D
BIOMEDICAL FREEZER
MDF-U537/U537D
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Note: 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. All rights reserved. Printed in Japan. CONTENTS PRECAUTIONS FOR SAFE OPERATION P. 2 CAUTIONS FOR USAGE P. 6 ENVIRONMENTAL CONDITIONS P. 7
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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. Precautions are illustrated in the following way: WARNING Failure to observe WARNING signs could result in a hazard to personnel possibly resulting i
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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. If the floor is not strong enough or the installation site is not adequate, this may result in injury from the unit falling or tipp
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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. Continued abnormal operation may cause electric shock or fire. If the unit is to be stored unused
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PRECAUTIONS FOR SAFE OPERATION CAUTION 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. Do not defrost inside walls using a knife or ice pick. There are pipelines for cooling behind the walls. Be careful not to damage the lines as this could c
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CAUTIONS FOR USAGE 1. Sometimes the alarm may not operate at the time of first start-up. This does not mean malfunction. It is due to the complete discharge of incorporated battery. 2-day continuous operation of the freezer is necessary to charge the battery fully. 2. The digital thermometer of medical freezer is designed to display the temperature of the center part of the freezing compartment. Although the thermometer sometimes displays a temperature a little bit higher than t
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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; o o 3. Ambient temperature 5 C to 40 C o 4. Maximum relative humidity 80% for temperature up to 31 C decreasing linearly to 50% relative o humidity at 40 C; 5. Mains supply voltage fluctuations not to exceed 10% of the nominal voltage; 6. Other supply voltage fluctuations as stated by the manufacturer;
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FREEZER COMPONENTS 6 8 13 5 11 1 2 3 4 12 7 MDF-U333 9 6 13 11 8 1 3 2 4 5 7 12 MDF-U537/U537D 9 10 8
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FREEZER COMPONENTS 1. Door: To open the door, grip the handle. 2. Handle: Always grip the handle to open the door. 3. Door latch: To lock the door, turn this latch downward. A padlock is also available. 4. Access port: This is used for leading the measuring cable from the freezing chamber to the outside. MDF-U333 and MDF-U537 has one port and MDF-U537D has two. 5. Lock: By turning to 180 degree to counterclockwise with a key, the door can be locked. 6. Control panel:
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FREEZER COMPONENTS Control panel and keypad 7 11 10 8 < MDF-U537D > 1 2 3 9 4 5 6 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. 2. Buzzer stop key (BUZZER): To silence the audible alarm, press this key. The remote alarm is also silenced by pressing this key. (The buzzer cannot be stopped duri
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INSTALLATION Installation site To operate this unit properly and to obtain maximum performance, install the unit in a location with the following conditions: 1. A location not subjected to direct sunlight Installation in a location subjected to direct sunlight may lead to inadequate cooling. 2. A location with adequate ventilation Leave at least 10 cm around the unit for ventilation. Poor ventilation will result in a reduction of the refrigeration capacity. Avoid direct coo
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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. Adjust the leveling feet Extend the leveling feet by rotating them counterclockwise to contact them to the floor. Ensure the unit is level. 3. Fix the unit Two fixtures are attached to the rear of the fr
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OPTIONAL COMPONENTS Temperature recorder WARNING 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. Following shows the combination of recorder with the mounting kit: Temperature recorder Mounting kit MTR-G85
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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. 3. Remove 2 rubber caps (outside and inside) on the Access port access port on the back of the freezer and also remove the insulation in the port. 4. Pass the recorder sensor in
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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 Shaft space on the lower front of the freezer. Open the cover and push the shaft on the both sides outward to remove the cover. Fig. 5 Fig. 5 3. Install the recorder in the recorder space. 4. Join the wire i
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OPTIONAL COMPONENTS Model MDF-U537D: The recorder is located on the top of the unit and on the left lower front of the freezer because the upper and lower chamber is controlled independently. < Attachment of MTR-G85 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 Access port screws provided with the mounting kit. 3. Rem
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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. Shaft 2. Remove the screw on the cover for the recorder space on the lower front of the freezer. Open the cover and push the shaft on the both sides outward to Fig. 14 remove the cover. Fig. 14 3. Install the recorder in the recorder space. 4. Join t
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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. Contact capacity is DC 30V, 2 A. Contact output: At normal condition “Open” At abnormal condition “Close Note: The remote alarm is silenced by pressing the BUZZER key as the remote alarm is operated in conjunc
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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 o temperature is -25 C. o Note: The unit is set at the factory that the chamber temperature -30 C. o Table 1. Basic operation sequence (Example: Chamber temperature -25 C) Description of operation Key operated Indication after operat
