Sanyo MDF-137 Bedienungsanleitung
SM9910202
SANYO Electric Co., Ltd.
Biomedical Business Division
Service Manual
Biomedical Freezer
MDF-137
FILE No.
RoHS
This product does not contain any hazardous substances prohibited by the RoHS Directive.
(You will find ‘RSF’ mark near the rating plate on the RoHS compliant product.)
WARNING
* You are requested to use RoHS compliant parts for maintenance or repair.
* You are requested to use lead-free solder.
Effective models
This service manual is effective following models.
Model name Product code Voltage and Frequency
MDF-137 823 016 54 220-240V 50Hz
Contents
㪧㪸㪾㪼㩷
Features --------------------------------------------------- 1
Specifications --------------------------------------------------- 2
- Structural specifications
- Performance specifications
- Control specifications
Dimensions --------------------------------------------------- 4
Cooling unit parts ---------------------------------------------- 5
Refrigeration circuit -------------------------------------- 6
Components on PCB -------------------------------------- 7
Connections on PCB -------------------------------------- 8
Electric parts ---------------------------------------------- 9
Specifications of sensor -------------------------------------- 10
Wiring diagram ---------------------------------------------- 11
Circuit diagram ---------------------------------------------- 12
Control specifications -------------------------------------- 13
Installation of compressor terminal cover ---------------------- 21
Parts layout --------------------------------------------------- 24
Test data --------------------------------------------------- 27
- Pull-down & Pull-up temperature
- Pull-down pressure
- Pull-down power consumption
- Temperature uniformity data (15points measured)
-
Amount of power consumption when driving at cycle
Instruction manual ---------------------------------------------------- 33
1
Features
䂓㩷 Cooling performance
- New compressor realizes chamber temperature can maintain -30㷄at least when
ambient temperature is 35㷄.
䂓㩷 Environment conscious
- HFC refrigerant, R-134a is adopted.
- CP urethane foaming is adopted for frame insulation.
䂓㩷 Better reliability for storage
- Various function modes are added by flash memory.
- Battery age is informed by counting battery accumulation time.
- Delay time for temperature alarm is changeable.
- New door lock mechanism
2
Specifications
䂓Structural specifications
Item Specifications
Name Biomedical Freezer
Model MDF-137
External dimensions W640 x D687 x H881 mm
Internal dimensions W525 x D440 x H715 mm
Effective capacity 138 L
Exterior Painted steel
Interior Colored aluminum plate
Insulation Rigid polyurethane foamed-in place
Door Painted steel
Lock 1 pc, cylinder type
Compressor Hermetic type, Output: 150W
Evaporator Aluminum tube on sheet type
Condenser Wire and tube type
Refrigerant R-134a
Battery For power failure alarm, Nickel-metal-hydride battery, DC6V, 1100mAh
Automatic charge
Accessories 1 set of key, 1 scraper, 2 baskets
Caster 4 pcs
Leveling foot 2 pcs at front
Access port 㱢17mm at right side and bottom left
Weight 52 Kg
Optional components
Automatic temperature recorder: MTR-4015LH, MTR-G85
Mounting kit for automatic temperature recorder:
MDF-S3040 (for MTR-4015LH)
MDF-S740䋨for MTR-G85䋩
2 baskets: MDF-13B2
MTR-480C
MTR-L03
MTR-5000
䂓Performance specifications
Item Specifications
Cooling performance -30㷄䋨AT:35㷄, no load䋩
Temperature control range -20䌾-30㷄
Rated voltage AC220V AC230V AC240V
Rated frequency 50Hz 50Hz 50Hz
Rated power consumption 95W100W 100W
Noise level 35 dB <A> (background noise; 20dB)
Maximum pressure 1.64 MPa
3
䂓Control specifications
Item Specifications
Temp. controller
Microcomputer input by keypad
Setting range:㩷-18㷄䌾-35㷄䋨1㷄increment䋩
Non-volatile memory
Temp. sensor Thermistor sensor
Temp. display LED digital display (1㷄increment)
Display range:㩷-50㷄䌾50㷄
High temp.
Set temperature䋫5䌾+15㷄, changeable䋨Default: +10㷄䋩
ALARM lamp blinks and buzzer sounds intermittently
with 15 min. of delay
Remote alarm contact activates and joins with buzzer
Low temp.
Set temperature-5䌾-15㷄, changeable䋨Default: -10㷄䋩
ALARM lamp blinks and buzzer sounds intermittently
with 15 min. of delay
Remote alarm contact activates and joins with buzzer
Remote
alarm
Remote alarm terminal 3P: Contact capacity DC30V, 2A (Max)
NC-COM䇮NO-COM
Activates during high/low temp. alarm, power failure alarm and Alarm
test performed, joins with buzzer
Alarms
Power fail. ALARM lamp blinks, buzzer sounds intermittently and remote alarm
contact activates.
Control panel
ALARM: Alarm lamp
BUZZER: Alarm buzzer stop key
ALARM TEST: Alarm test key
SET: Set key
䋾: Digit shift key
㺢: Numerical value shift key
DEF: Defrost key
Key Lock
Press 䋾key for 5 seconds.
L0: Unlocked
L1: Locked
Self diagnosis
* When temp. sensor is failed;
- Error code䋨E01/E02䋩and chamber temp. are displayed alternately.
- Remote alarm contact activates with buzzer sounds.
* When battery switch OFF check is failed in Alarm Test;
-㩷Error code䋨E09䋩and chamber temp. are displayed alternately.
Power switch Breaker switch on left back side
Power source Local voltage
4
Dimensions
5
Cooling unit parts
㩷㩷㩷
MDF-137
Parts name Specifications
Type FL1568-SP
Compressor cord 7FB-2-M101-010-03
Rated power supply Single phase, 220~240V, 50Hz
Oil Charged q㵭ty: 310±10ml
Cooling method Natural air circulation
PTC PGR0SAT
Overload relay 2.0C36C3
Starting capacitor 60µF-300VAC
Compressor
Running capacitor -----
Evaporator Type Direct cooling tube on sheet type
Type 4A-XH-9Dryer
Charged q㵭ty 10g
Resistance 0.725 MPaG
Length䋨L䋩3600 mm
Outer diameter䋨OD䋩㱢1.8 mm
Capillary tube
Inner diameter䋨ID䋩(㱢0.65 mm)
Type Natural convection
Condenser Wire and tube type
24 lines × P40mm × W440 mm
Pre-condenser Wire and tube type
4 lines × P40mm × W440 mm
Condenser
Frame pipe 㱢4.76䇮C1220T
Refrigerant Type R-134a㩷Charged q㵭ty: 160±5g
6
㩷Refrigeration circuits 㩷
㩷
㩷
Condenser
Dryer
Capillary tube
Compressor
Header
Evaporator
Pre condenser
Frame pipe
䊶䊶䊶 Point to evacuate
7
Components on PCB
CN8
To Battery
Battery Switch
CN1
To Switching
Power supply
CN2
To MTR-480
(Option)
CN4
#1-#2
To Temp. control relay
CN3
To Remote alarm terminal
CN5
#1-#6 To Display PCB(CN51)
#7-#8 To Buzzer
CN7
#9-#10
To Temp.sensor
CN6
To Display PCB (CN52)
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