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Sanyo MDF-192, Instruction Manual

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Sanyo MDF-192 Instruction Manual Download Page 20

 

19

 

   OPERATING INSTRUCTIONS 

 

   

Remote alarm terminal

 

 

The terminal of the remote alarm is installed inside the side cover at the lower left side of the unit.    The 

alarm is outputted from this terminal.    The recommended contact capacity is between 2 A (DC 30V) and 

0.1 mA (DC 1V). 

Contact output: 

between COM. and N.O. 

between COM. and N.C. 

At 

normal 

  Open 

  Close 

At 

abnormal 

  Close 

  Open 

 

Contact Sanyo sales agency when the installation of remote alarm device is desired. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for MDF-192

Page 1: ...MDF 192 MDF 192AT Ultra Low Temperature Freezer INSTRUCTION MANUAL MDF 192AT ...

Page 2: ...uracies SANYO Electric Biomedical Co Ltd All rights reserved Printed in Japan CONTENTS PRECAUTIONS FOR SAFE OPERATION P 2 CAUTIONS FOR USAGE P 7 ENVIRONMENTAL CONDITIONS P 9 FREEZER COMPONENTS P 10 INSTALLATION P 13 START UP OF UNIT P 15 OPERATING INSTRUCTIONS P 16 TEMPERATURE RECORDER AT type P 22 ROUTINE MAINTENANCE P 24 TROUBLESHOOTING P 26 DISPOSAL OF UNIT P 27 RECYCLE OF NICKEL CADMIUM BATTER...

Page 3: ... 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 manual in a place accessible to users of this unit Label on the unit This mark is labeled on the cover in which the electrical components of high voltage are enclosed to prevent the electric shock The cover should be removed by a qualified enginee...

Page 4: ...o the unit Make sure to remove dust from the power supply plug before inserting in a power source A dusty plug or improper insertion may cause a hazard Use a power supply outlet with ground earth to prevent electric shock If the power 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 l...

Page 5: ... 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 in an unsupervised area for an extended period ensure that children do not have access and that doors cannot be closed completely The disposal of the unit...

Page 6: ...t temperature may cause damage to contents Do not put a container with water or heavy articles on the unit It may cause injury if the articles fall Current leakage or electric shock may be resulted form the deterioration of insulation by spilled water 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 Do not put glass bottles or can...

Page 7: ...r supply plug before moving the unit Take care not to damage the power cord A damaged cord may cause electric shock or fire Be careful not to tip over the unit during movement to prevent damage or injury Always disconnect the power plug when the unit is not used for long periods Do not put the packing plastic bag within reach of children as suffocation may result CAUTION ...

Page 8: ...ooling pipe is routed in the rear of the freezer Never use a knife or a screw driver etc to remove the frost They may cause damage of chamber wall or improper operation of the unit And do not make any holes for attaching accessories on the freezer wall The digital thermometer of this unit is designed to display the temperature of the center part of the freezing compartment Although the thermometer...

Page 9: ...e the remote alarm switch OFF until the inside temperature of the freezer reaches the appropriate level Leave the back up system switch OFF as well for MDF 192AT After the inside temperature reaches the appropriate level set the needle for the warning device operation of the temperature recorder When the unit is first installed or re started after long period of no use the power failure alarm may ...

Page 10: ...umidity 80 for temperature up to 31o C decreasing linearly to 50 relative humidity at 40o C 5 Mains supply voltage fluctuations not to exceed 10 of the nominal voltage 6 Other supply voltage fluctuations as stated by the manufacturer 7 Transient overvoltages according to Installation Categories Overvoltage Categories II For mains supply the minimum and normal category is II 8 Pollution degree 2 in...

Page 11: ...10 FREEZER COMPONENTS 1 2 3 13 5 6 7 8 9 10 12 11 4 14 MDF 192 ...

Page 12: ...to settle the frame 8 Temperature display area The digital temperature indicator alarm lamp and filter check lamp are installed 9 Exhaust air vent Be careful not to block this 10 Control panel cover 11 Control panel cover lock To lock the control panel cover to avoid the setting by accidental contact 12 Control panel Temperature set key power switch and so on are installed MDF 192AT has a temperat...

Page 13: ...tment can be shifted using this key in set mode 7 Numerical value shift key The figure that is displayed digitally can be changed by pressing this key in set mode In display mode pressing this key for more than 5 seconds leads the set mode of alarm recovery time Refer to page 17 for alarm temperature setting and page 18 for setting of alarm resume time 8 Enter key ENT By pressing this key in set m...

Page 14: ...ocation not prone to high humidity 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 injury from the unit tipping ...

Page 15: ...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 frame Fix the frame to the wall with these fixtures and rope or chain If holes can be opened on the wall open a hole with a 10 5mm diameter and fix the frame by using the special bolt nut supplied with this unit This bolt nut can be used only on concrete walls 4 Ground...

Page 16: ...activates according to the procedure on page 21 when the temperature display pointer of temperature recorder corresponds with the desired temperature if the back up system is used MDF 192AT only 7 Switch on the remote alarm switch and back up system switch MDF 192AT only 8 Check that the alarm lamp lights and the buzzer sound by pressing the alarm test key 9 Make sure that liquid CO2 spouts into t...

Page 17: ...hamber temperature is displayed 1 Press mode change key when changing the set temperature during operation PV SV The second digits blinks 2 Set the second digit to 7 with the numerical value shift key When pressed the figure of settable digit changes 3 By pressing the digit shift key set the first digit The first digit blinks 4 Set the first digit to 0 with the numerical value shift key When press...

Page 18: ...ing 15o C higher than the setting of chamber temperature Description of operation Key operated Indication after operation 1 The current chamber temperature is displayed 2 Press the numerical value shift key for about 5 seconds The first digit blinks 3 Set the first digit to 1 with the numerical value shift key The first digit blinks 4 Press ENT key ENT The first digit blinks 5 Set the first digit ...

Page 19: ...current setting is displayed and the first digit blinks The settable digit is shifted 5 Set to 130 with the digit shift key and numerical value shift key When pressed the figure of settable digit changes 6 Press ENT key ENT Alarm resume time is memorized and the current chamber temperature is displayed The settable alarm resume time is between 10 and 60 minutes with 1 minute increment The setting ...

Page 20: ... lower left side of the unit The alarm is outputted from this terminal The recommended contact capacity is between 2 A DC 30V and 0 1 mA DC 1V Contact output between COM and N O between COM and N C At normal Open Close At abnormal Close Open Contact Sanyo sales agency when the installation of remote alarm device is desired ...

Page 21: ...y If the thermal sensor is shirt circuited Alarm lamp blinks E01 and 170o C is displayed alternately Intermittent tone Remote alarm Continuous operation If the cascade sensor is disconnected Alarm lamp blinks E03 and chamber temp is displayed alternately If the cascade sensor is shirt circuited Alarm lamp blinks E04 and chamber temp is displayed alternately Intermittent tone Remote alarm If the fi...

Page 22: ...r connect the liquid CO2 gas cylinder to the joint of the back up system For this setting consult with a qualified gas supplier or Sanyo sales agency 2 After setting the liquid CO2 gas cylinder operate the freezer until the chamber temperature reaches the required level 3 Set the warning indicator of the recorder at the temperature higher than 70o C The back up system is operated continuously if t...

Page 23: ... 4 Set the chart according to the mark of day and time Fig 3 5 When mounting lay down the cartridge first and push into the mounting position with the groove set a the projection on the position 6 Set up the cartridge and settle in position Replacement of cell Replace the dry cell once a year as follows 1 Put up the penholder first then pull out cartridge from the mounted position 2 Reset the batt...

Page 24: ... the chart Note Turn off the back up switch when the freezer operation is stopped or the back up system is not used The battery for back up system is discharged when the back up switch is kept on The additional felt pen or recording paper is available from Sanyo sales agency To stop the temperature recorder remove the cell from the recorder The back up system can operate without recorder cell Alwa...

Page 25: ...areful if you stick your hand into this part of the unit For MDF 192AT press the back up test switch once a month to check the back up system operation Defrosting The frost forms on the wall and surrounding of inner lid Too much frost prevents the door from be closed tightly and decreases the cooling performance To avoid such condition remove the frost as necessary Note Never use a tool with sharp...

Page 26: ...edure As a clogged filter may cause poor cooling and compressor trouble clean it once a month 1 The freezer has a side panel on the lower left Open the side panel upward as shown in the figure 2 The filter is located at the front of the condenser Pull the filter outward as shown in the figure Note Do not touch the running fan inside the side panel 3 Wash the filter with water and dry it naturally ...

Page 27: ...he sturdy floor There is anything touching the frame The freezer is not leveled with the leveling feet It is the immediately after starting of refrigeration The freezer causes larger noise when the chamber temperature is high because of large load The noise gets smaller along with chamber temperature Alarm test key cannot actuate the alarm function The alarm test key does not function when the pow...

Page 28: ...ed in an unsupervised area for an extended period ensure that children do not have access and doors cannot be closed completely The disposal of the unit should be accomplished by appropriate personnel Always remove doors to prevent accidents such as suffocation ...

Page 29: ...er switch and disconnect the power supply plug 2 As shown in the Fig 1 remove 4 fixing screws on the front panel and remove the front panel 3 Remove 4 fixing screws on the control panel and take out the control panel Fig 2 4 Remove 2 fixing screws on the control box to remove the control box cover Fig 3 5 Remove 2 screw fixing the clips securing the battery and then disconnect the connector Fig 4 ...

Page 30: ...m High temperature alarm Power failure alarm Filter check Remote alarm contact Allowable contact capacity 30VDC 2A Back up system Liquid CO2 injection Temperature recorder Dry cell driven 2 month recording Battery For power failure alarm Nickel cadmium battery 6VDC 270mAh For power failure alarm Nickel cadmium battery 6VDC 270mAh For back up system Lead storage battery 12VDC 4Ah Accessories 1 set ...

Page 31: ...er source AC 110 V 60 Hz AC 150 V 60 Hz AC 220 V 50 Hz AC 220 V 60 Hz AC 230 V 50 Hz AC 240 V 50 Hz Rated power consumption 600 W 600 W 550 W 600 W 550 W 550 W Alarm duration 9 hours Noise level 50 dB A background noise 20 dB Maximum pressure 2500 kPa Note The unit with CE mark complies with EC directives 89 336 EEC 93 68 EEC and 73 23 EEC ...

Page 32: ...nit 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 Ultra Low Temperature Freezer Model MDF 192 MDF 192AT Serial number Date of Install...

Page 33: ...7FB6P10137300 10 May 2004 Recycled paper CEM SANYO Electric Biomedical Co Ltd 10 15 Hongo 3 Chome Bunkyoku Tokyo 113 8434 Japan Printed in Japan ...

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