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INSTRUCTION MANUAL
MDF-136
MDF-236
MDF-436
BIOMEDICAL FREEZER
MDF-236
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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.
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CONTENTS PRECAUTIONS FOR SAFE OPERATION P. 2 CAUTIONS FOR USAGE P. 6 ENVIRONMENTAL CONDITIONS P. 7 FREEZER COMPONENTS P. 8 INSTALLATION P. 11 OPTIONAL COMPONENTS P. 13 START-UP OF UNIT P. 15 REMOTE ALARM TERMINAL P. 15 TEMPERATURE SETTING P. 16 ALARMS & SAFETY FUNCTIONS P. 18 SETTING OF ALARM RESUME TIME P. 19 ROUTINE MAINTENANCE P. 20 TROUBLESHOOTING P. 21 DISPOSAL OF UNIT P. 21 SPECIFI
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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 hands 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
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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 1 2 5 3 6 4 7 8 9 10 MDF-236 11 12 13 14 8
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FREEZER COMPONENTS 1. Door: To open the door, grip the handle. 2. Handle: Always grip this handle to open and close the outer door. 3. Door gasket: This provides a tight door seal and prevents cold air leak. Keep clean. 4. Access port: This is used for leading the measuring cable from the freezing chamber to the outside. o 5. Lock: Turn counterclockwise to 180 with a key and the outer door is securely locked. 6. Control panel: Temperature set key, buzzer key and ala
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FREEZER COMPONENTS Control panel and keypad 7 8 1 2 3 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 during remote alarm te
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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. 3. A locati
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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
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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 this freezer as the optional component. The type of the recorder is MTR-G85. For the attachment, the mounting kit (MDF-S740) is necessary. Following shows the attachment procedure. 1. Remove four screws on the cover for the recorder mou
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OPTIONAL COMPONENTS 6. As shown in the Fig. 4, fix the recorder sensor on the chamber wall by using 2 clips with a 10mm spacer Spacer located between the wall and the clip. The clips and spacers are enclosed with the mounting kit. 7. Cover the gap of the access port on the chamber Clip side completely by a silicon sealant after pushing the insulation into the gap. Sensor Fig. 4 8. After binding the lead wire on the back of the recorder and fix the recorder t
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START-UP OF UNIT Follow the procedures for the initial and consequent operations of the unit. 1. Turn the power switch ON with the chamber empty. 2. Turn ON the battery switch. 3. The alarm sometimes may operate. In this case, silence the alarm by pressing BUZZER key. 4. Set the chamber temperature to a desired value. 5. Allow the unit to achieve the desired chamber temperature. 6. Check that the alarm lamp is flashed and the buzzer is activated by pressing ALARM TEST ke
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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 -35 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 -35 C) Description of operation Key operated Indication after operat
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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. o o o o The available set range for high temperature alarm is between +5 C and +15 C, and -5 C and -15 C for low temperature alarm against the chamber temperature. o Note: The temperature alarm is set at 10 C of the set temperature at the factory. Display Mode Function High temperature alarm set See Tabl
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ALARMS & SAFETY FUNCTIONS This unit has the alarms and safety functions shown in Table 5, and also self diagnostic functions. Table 5 Alarms and safety functions Alarm & Safety Situation Indication Buzzer Safety operation If the chamber temperature is higher ALARM lamp is flashed. High temperature Intermittent tone with Remote alarm with 15 than the temperature at which the Temperature indicator is alarm 15 minutes delay. minutes delay. high temperature alarm is activated. flashe
