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OPERATING INSTRUCTIONS

Alarm and safety functions

This unit has the alarm and safety functions shown in table below, and also self diagnostic function.

Table 4. Alarm and safety function

Alarm & safety

Situation

Indication

Buzzer

Safety operation

High temperature
alarm

When the chamber temp. is
approx. 10

C (or 15

C) higher

than the set temp.

Alarm lamp blinks.

Intermittent
tone with
12
min. delay

Remote alarm
with 12 min. delay

Power failure
alarm

At power failure
When power cord is
disconnected.

Alarm lamp blinks.

Intermittent
tone

Remote alarm

Filter check

When the condenser filter
is clogged.

Filter check lamp lights.

-----

Auto-return

When there is no key
pressing in each setting
mode for 90 seconds.

Chamber temp. is
displayed.

-----

Finishing of each
setting mode

If the thermal sensor is
disconnected.

Alarm lamp blinks.
E01 and 50

C is

displayed alternately.

If the thermal sensor is
shirt-circuited.

Alarm lamp blinks.
E01 and -170

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 filter sensor is
disconnected.

Alarm lamp blinks.
E05 and chamber temp.
is displayed alternately.

Sensor
abnormality

If the filter sensor is
short-circuited.

Alarm lamp blinks.
E06 and chamber temp.
is displayed alternately.

Intermittent
tone

Remote alarm

Note

：

The filter check lamp sometimes lights at the start-up under high ambient temperature. The lamp will is

off when the chamber temperature is getting lower.

Operation after power failure

The set value (setting of chamber temperature and alarm temperature) is memorized by nonvolatile

memory. Accordingly, the freezer resumes the operation with setting before power failure.

Содержание MDF-593C

Страница 1: ...MDF 593C MDF 793C Ultra Low Temperature Freezer INSTRUCTION MANUAL MDF 593C ...

Страница 2: ...naccuracies 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 P 21 ROUTINE MAINTENANCE P 25 TROUBLESHOOTING P 26 DISPOSAL OF UNIT P 27 RECYCLE OF NICKEL CADMIUM BATTERY P ...

Страница 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...

Страница 4: ...orrosion Make sure a dedicated power source is used as indicated on the rating label attached to 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...

Страница 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...

Страница 6: ...ailure or power off A change of set 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 un...

Страница 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 ...

Страница 8: ... 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 sometimes display a temperature about 2o C higher than the actual temp...

Страница 9: ...e remote alarm switch OFF until the inside temperature of the freezer reaches the appropriate level Leave the back up system switch OFF as well 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 not operate becaus...

Страница 10: ...midity 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 over voltages according to Installation Categories Over voltage Categories II For mains supply the minimum and normal category is II 8 Pollution degree 2 i...

Страница 11: ...10 FREEZER COMPONENTS MDF 593C 1 3 13 7 8 12 10 11 4 2 9 6 5 15 14 16 ...

Страница 12: ... 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 Refer to page 12 for details 13 B...

Страница 13: ...gital of the figure displayed for temperature adjustment can be shifted using this key 7 Figure shift key The figure that is displayed digitally can be changed by pressing this key 8 Enter key ENT When the desired temperature is reached press this key Operation will commence toward this new point 9 Alarm test key ALARM Check that the alarm lamp and the buzzer are functional when the deep freezer i...

Страница 14: ...floor may cause vibration and noise A location 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 sp...

Страница 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...

Страница 16: ... system 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 7 Switch on the remote alarm switch and back up system switch 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 the chamber by pushing ...

Страница 17: ...ith 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 pressed the figure of settable digit changes 5 Press enter key ENT Set temperature is memorized and the current chamber temperature is displayed Note The temperature set mo...

Страница 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 ...

Страница 19: ...rent 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 is ...

Страница 20: ...layed alternately 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...

Страница 21: ...ct 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 the warn...

Страница 22: ... 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 battery chamber cover with wire on th...

Страница 23: ... 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 Always r...

Страница 24: ...r supply are turned off 2 Remove the side cover by loosening four screws Fig 1 3 After removing a grille screw open the grille as shown in Fig 1 4 Remove the control panel by loosening two screws on the lower outside A and upper inside B of the control panel Fig 1 5 Detach the cover on the control panel by removing four screws Fig 1 6 As shown in Fig 2 secure the temperature recorder to the contro...

Страница 25: ...order sensor into the chamber by sassing the hole Fig 4 11 Remove the sensor support and position the recorder sensor and then replace the stopper Fig 4 12 Seal around the hole for recorder sensor completely by applying the sealing compound RTV to outside and inside of the chamber Fig 4 13 Connect the power cord of the recorder to the terminal as shown in Fig 6 N Neutral L Live E Earth 14 Fix the ...

Страница 26: ...flickers and the buzzer sounds when the condenser filter is clogged Clean the filter according to the following procedure As a clogged filter may cause poor cooling and compressor trouble clean it once a month 1 The filter fitted to the grille can be removed as shown in the figure 2 Remove the mounting screw securing the grille and pull out the grille 3 Remove the filter installed inside the grill...

Страница 27: ... the 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 p...

Страница 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 ...

Страница 29: ...m battery 1 Turn off the power 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 dis...

Страница 30: ... C Sensor Pt 100Ω Alarm Nickel cadmium battery Remote alarm contact Buzzer and lamp Battery For power failure alarm 6VDC 270mAh Voltage booster Electrical 208 230 V 1 HP 60 Hz Minimum operating voltage 193 V at start up of compressor Accessories 1 set of key 2 rubber caps 1 scraper Weight 319 kg 380 kg Option Aluminum container MDF 59SC Inventory rack IR213C IR309C Temperature recorder MTR 85H CVK...

Страница 31: ... unit Unit 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 Model Serial number Date of installation Ultra low temperature MDF freezer P...

Страница 32: ...7FB6P10140700 22 Feb 2005 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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