Sanyo MDF-793C - Manual (Page 2)

A wide range of Ultra-low
temperature freezers.
this product family offers different types
and models of ultra-low freezer which can
achieve and maintain temperatures down
to -86ºC (-123ºf) at ambient temperature
of 30ºC (85ºf). It is a wide selection, offer-
ing a variety of sizes and types suitable
for uses such as long term preservation,
testing, frozen storage etc.
Specially Designed Compressor for
Ultra-Low Temperature.
the refrigeration system is at the heart of
producing ultra-low temperature freezing.
In the process of developing various
technical solutions in order to achieve and
maintain ultra-low temperatures, sanyo
designed a compressor especially for ultra
low-temperature use. sanyo is a leading
manufacturer of ultra-low temperature
freezers that develops and produces all its
own components, from the refrigeration
units to the microprocessors.
An Ideal Freezing Environment By
Means of A Double-Insulation Wall
and the “Hot Line”.
In ultra-low temperature freezers,
effective insulation is extremely critical
since the temperature difference between
the outside and the inner compartment
can be as high as 115ºC. the insulation
used in sanyo’s ultra-low temperature
freezers is two layers of rigid,
foamed in place polyurethane. this design
prevents the insulation layers from
distortion and cracking that might occur
due to temperature differences inside and
out, and creates the most efficient
insulation material available today.
moisture condensation at the top edges
of the cabinet due to differences in
temperature inside and out causes frost
and icing problems, which may reduce
heat insulation efficiency and obstruct
door movements. they are prevented by
the “hot line” by means of which hot gas
from the higher temperature circuit is
circulated through the problem areas.
p r e s e r v a t i o n p r e s e r v a t i o n
-86°C PRODUCT FAMILY DESIGN
–80°C
–130°C
–152°C
Recrystallization point
Hexagonal crystal
Cubic crystal
Amorphous
ice crystal
Why Freeze to –152°C?
Recrystallization Mechanism (Artist’s Concept)
–86
°C
–86
°C
–152
°C
–152
°C
Alarm lamp and buzzer
Filter check lamp
Buzzer key
Alarm test key
Mode setting key
Digit shift key
Numerical value shift key
Enter key
Power switch
CO
2
Back-up test swich (AT type only)
CO
2
Back-up swich (AT type only)
Battery switch
Remote alarm switch
Temperature recorder
Control panel
Hot line
MDF-393AT
1
2
3 4 5 6 7 8
9
10 12
13
14
11
1
2
3
4
5
6
7
8
9
10
12
13
14
11
Optional Accessories
Model No.
Recording Range
Freezer Model
MTR-85H
–100 to +50°C
MDF-192
MDF-393
MDF-593
MDF-793
MTR-155H
–170 to +30°C
MDF-1155
ULT-Freezer Backup Kits
CVK-UB2/UB2(I): LCO 2 Backup Kit for MDF-793/593/393
CVK-UBN2/UBN2(I): LN 2 Backup Kit for MDF-793/593/393
CVK-A: Built-in LCO 2 Backup Kit for MDF-793/593/393/192
CVK-AT2: LCO 2 Backup Kit for MDF-1155
CVK-ATN2: LN 2 Backup Kit for MDF-1155
Temperature Recorders
(I) version for North America only
MDF-U5386SC
innovation
performance
reliability
support
MDF-U7386SC
-86°C
23.5 cu.ft.
Evolutionary Design
■ the newly developed refrigeration
system and freezer structure minimizes
intrusive operating noise.
■ the newly developed back cover
combined with new aerodynamically
designed and placed components in the
refrigeration compartment provide supe-
rior air flow, making it possible to drasti-
cally reduce the stress to the freezer and
contributing to excellent durability.
■ two independent and insulated inner
doors ensure maximum interior chamber
uniformity.
Safety
■ High and low temperature warning pro-
vides an audible and visual alarm when
the temperature deviates more than ±5°C
to ±20°C (adjustable) from the set point.
■ alarm ring back function ensures that
buzzer will resume operation, should
alarm conditions continue after it is
silenced.
■ microprocessor-controlled filter-clog
check function
protects the refrigeration circuit.
■ Control panel with digital display for
easy operation.
UPRIGHT -86ºC ACCESSIBILITY
MDF-U5386S
Dimensions
[Unit : mm (inch)]
Specifications
Model
Temperature range
Maximum cooling
performance
Exterior dimensions
(W x D x H)
Interior dimensions
(W x D x H)
Net weight
Effective capacity
Shelf
Access port
Compressor
Refrigerant
Alarm
Remote alarm contact
Accessories
Power Requirement
MDF-U5386SC
–50°C to –86°C (1°C increment)
–86°C
(Ambient temp. 30°C)
35.0” x 34.4” x 78.3”
(890 x 875 x 1990mm)
24.8” x 23.6” x 50.4”
(630 x 600 x 1280mm)
672 lbs. (Approx. 305kg)
17.1 cu.ft. (483 L)
Stainless steel, Adjustable,
3 shelves, W608 x D533”, Max.
load: 50kg (110 lbs.)/shelf
17” diameter, 3 locations (back,
bottom left/right corner)
Hermetic type, Output: 1100 W
(high stage side), 1100 W (low
stage side)
HFC refrigerants
High/low temperature,
Power failure, Filter check,
Battery check
Allowable contact capacity:
DC 30V, 2A
1 set of keys, 1 scraper
220V / 60 Hz
Built-in voltage booster
*Appearance and specifications are subject to change without notice.
Features
Distributed by:
Pull-down characteristics
40
20
0
–20
–40
–60
–80
–100
0 2 4 6 8 10
5 0
12
35 25 20
14
15 10
Te
m
p
er
at
u
re
(°
C
)
40
20
0
–20
–40
–60
–80
–100
0 2 4 6 8 10 12 14
Te
m
p
er
at
u
re
(°
C
)
Time (hour)
Time (hour)
Pull-up characteristics
during power failure
30
14
8
6
4
2
10
12
0
T
im
e
(h
o
u
r)
Ambient temperature (°C)
CO
2
backup system operation
characteristics
Central air temp. in cabinet
Ambient temp. 30°C, No-load
Ambient temp. and maintenance
of –70°C by injection of LCO
2
(30kg)
ACCESSIBILITY
• A new beak style inner
door latch tightly closes
the inner door against
the freezer frame. It
also helps make
opening and closing the door smoother.
• The condenser filter is situated at the
bottom right side of the front panel to make
filter removal and cleaning easier.
SANYO Electric Co., Ltd.
SANYO Sales & Marketing Corporation
5-15, Hiyoshi-cho 2-chome, Moriguchi City, Osaka, 570-8634, Japan
Telephone: +81-6-6992-0322 Fax: +81-6-6992-9291
URL http://www.sanyo.co.jp/cmg/biomedical
©2006 SANYO Printed in Japan 2006.3. MA. SHR102
Performance Data
SAFETY
• Alarm lamp and buzzer offer secure warning
of power failure or abnormal temperature
increase.
• High and low temperature warning provides
an audible and visual alarm when the
temperature deviates more than 5°C to
20°C (adjustable) from the set point.
• Alarm ring back function ensures that buzzer
will resume operation, should alarm
conditions continue after it is silenced.
• Microprocessor-controlled filter-clog check
function protects the refrigeration circuit.
• New rugged, one-handed
outer door latch has a hole to
allow a padlock to securely
protect valuable samples.
• Control panel with
digital display for easy
operation.
956 (37.6)
890 (35)
18 (0.7)
48
(1.9)
630 (24.8)
1540 (60.6)
450 (17.7)
1990 (78.3)
605.5 (23.8)
105
(4.1)
1280(50.4)
130 (5.1)
130 (5.1)
867 (34.1)
11
(0.4)
1625 (64)
795 (31.3)
140
(5.5)
EVOLUTIONARY DESIGN
• The newly developed refrigeration system
and the freezer structure offer a quiet
experimental environment.
• Achieves 10% higher energy conservation
than previous model.
(For model rated 220V, 50Hz)
• The newly developed back cover combined
with new aerodynamically designed and
placed components in the refrigeration
compartment provide superior air flow,
making it possible
to drastically
reduce the stress
to the freezer and
contributing to
excellent durability.
• Two independent and insulated inner doors
prevent cold air leakage.
Back
cover
Compressors
Front
Rear Air
ISO 9001 & 14001 certified
Options
Circular recorder
MTR-C954
MTR-85H
Recorder mounting
bracket
MDF-S3085
(for MTR-85H)
LCO 2 backup system
CVK-UB2
LN 2 backup system
CVK-UBN2
Inventory rack
SUR-624-I
Rack Capacity: 24
*Cooling performance is indicated by the temperature reached at
the center of the freezer (at ambient temperature of 30C with no
load). In order to use the freezer at a stable temperature for a long
time, it is recommended that the temperature be set to at least 5C
higher than the indicated lowest temperature.
In addition, depending on the usage conditions, it may not be
possible to reach the indicated lowest temperature.
-86°C
17.1 cu.ft.