MELING DW-YL90 Ultra Low Temperature Biomedical Freezer Instruction Manual

DW-YL90 Ultra Low Temperature Biomedical Freezer

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Product Information:

Specifications:

• Models: DW-YL90, DW-FL90, DW-YL270, DW-FL270, DW-YL450,
  DW-FL450

• Manufacturer: Meling Biomedical

• Website: www.melingbiomedical.com

• Email: zkmeiling@zkmeiling.com

Product Usage Instructions:

1. Cabinet Fixing:

Twirl the support leg or lock the universal caster to ensure the
cabinet does not move during use.

2. Installation of Fixing Plates:

For models DW-FL270 and DW-YL450 (110V 60Hz):

1. Take out the two fixing plates and check if they are
   consistent.

2. Remove the bolts from the fixing plate and fix it on the back
   of the refrigerator.

3. Connect the fixing plate to an immovable wall or bracket on the
   back of the refrigerator and ensure it is securely fixed.

3. Power On:

Turn on the power switch after connecting the power source. If
applicable, turn on the battery switch as well.

4. Door Alarm and Temperature Control:

Refer to the control panel functions for setting up door alarms,
USB data export, and temperature control.

Frequently Asked Questions (FAQ):

Q: How do I unlock the keyboard for parameter adjustment?

A: Under normal operating state, simultaneously press and hold
specific keys for 3 seconds to unlock the keyboard. Follow the
on-screen instructions to enter the password and adjust
parameters.

Q: What is the quick setting menu for after power on?

A: After the power-on self-test, you can access the quick
setting menu to adjust various parameters such as time settings,
print intervals, and temperature data recording periods.

Q: How do I use the optional printer function?

A: The system can store data for up to 7 days for printing.
Press the print key to print temperature data within a specific
time period.

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DW-YL90 DW-FL90 DW-YL270 DW-FL270 DW-YL450 DW-FL450

Better science, Better life!
www.melingbiomedical.com zkmeiling@zkmeiling.com

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8

6.2 Optional Accessories

18

18 18 19 19

20

21 24

Thank you for choosing and using MELING BIOMEDICAL products! For your safe and convenient use and reasonable maintenance of the equipment, please read the Operation Manual carefully before use and keep it properly for reference. The equipment operator can copy some chapters of this operation manual, but only for internal use, for example, to instruct the user how to deal with emergencies. These chapters are clearly marked in the catalog of the manual. MELING BIOMEDICAL has no obligation and responsibility for any instrument damage caused by the user’s failure to use the equipment according to the instructions or the method specified by the manufacturer. Due to the rapid improvement of MELING BIOMEDICAL products, the functions described in the instructions may be inconsistent with those of the products you purchased. Please refer to the physical functions.
® Please read carefully the Attention and Safety Precautions (in 2. Safety Instructions). ® During transportation or use, no violent vibration or collision is allowed and the freezer shall be kept away
from rain. Store in a clean room with humidity no more than 80 %, no corrosive gas and good ventilation. ® Ultra low temperature freezer and biomedical freezer (hereinafter referred to as equipment) can only be
operated by trained and authorized personnel. ® Maintenance of the equipment can only be completed by MELING BIOMEDICAL or an agent authorized
by MELING BIOMEDICAL. ® If the operator encounters any situation not mentioned in this manual, please contact MELING
BIOMEDICAL or the agent authorized by MELING BIOMEDICAL for the correct handling method. ® If the equipment is not used according to the method specified in the specification, it may be damaged. ® Try to use the accessories provided by MELING BIOMEDICAL. If users would like to use other
accessories, MELING BIOMEDICAL will not be responsible for the adverse consequences caused therefrom. ® Equipment must be inspected and maintained regularly to ensure good operation of the equipment. ® Do not use mechanical devices or other means to accelerate the defrosting process, other than those
recommended by the manufacturer.
1

Beware of fire.Warning;flammable material Beware of low temperature.

Warning: crushing of hands.

Do not use the power supply that is not specified in the equipment design, so as to avoid overheating, short circuit and other faults. For example, connecting 110 V rated valtage products to 220 V power supply may cause faults such as over heating and equipment buming. For detailed input voltage AC please refer to Specification(Rated voltage ±10%). If the operating voltage is too low or too high, a suitable automatic voltage stabilizer must be installed for cooperative use.
2

3

For detailed input voltage AC please refer to Specification(Rated voltage ±10%).
In order to operate the equipment normally and obtain the best performance level, the installation site of the equipment shall meet the following requirements: ò It cannot be installed in a narrow and closed space, and the door of the room shall not be smaller or lower than this
equipment, which shall at least ensure the normal access of the equipment, so as to avoid the maintenance difficulties in case of equipment failure, which may result in damage to stored items due to the failure to repair the equipment in time; ò The installation floor must be solid, flat, non- combustible and able to bear the weight of the equipment during operation; ò It shall be with good ventilation, and direct sunlight shall be avoided; ò Each equipment needs to use a power outlet independently. Please ensure that the plug and outlet are firmly connected; ò Check the working voltage before use. In areas with unstable voltage, consider using a voltage stabilizer suitable for the equipment load to ensure that the input voltage requirements in the installation environment are met;
4

4. Cabinet fixingtwirl the support leg or lock the universal caster to ensure the cabinet not moving

when in use.

5.Install the fixing plates(Apply to DW-FL270,DW-YL450(110V 60Hz)).

a.Firstly take out the two fixing plates and check if consistent.

b.Remove the bolts from the fixing plate,and then fix the plate on the back of the refrigerator.

c.Connect the fixing plate to the immovable wall or bracket on the back of the refrigerator and finally

check whether it is fixed.

fixing plate

Screw Mounting hole
Turn on the power switch after the power is on(If there is a battery, turn on the battery switch).

5

6

7

°C
Ref.

DOOR ALARM

USB TEMPERATURE CONTROL PRINT

Type A control panel Function description of Type A control panel(Applicable to DW-YL90,DW-FL90,DW-FL270,DW-YL270)

”

”

to export the data thru U disk (up to12 months’ data once time)

8

When the keyboard was unlocked already Unlock:under normal operating state,simultaneously press and keys for 3s and the digital tube will display the parameter code”0000″;By pressing to enter the password”0005″and holding to unlock. Then press key for 3s,the digital tube will display the parameter code”PS1″and enter the setting and adjustment parameters.Use or key to scroll the parameters;
9

YL

-10~ -25

-23

FL

-20~ -40

-40

YL

10

FL

10

YL

5

FL

5

10

Quick setting of time after power on After the power-on self-test on the display board is completed, the quick setting menu is displayed.

Menu item Menu

Menu description

Set range

Default

Unit

n

Set logger module time – year

10~50

/

y

Set logger module time – month

1~12

—

/

Quick Settings
menu

r

Set logger module time – day

S Set logger module time – hour

F Set logger module time – minute

Pt Print interval

01~31

—

/

00~23

—

/

00~59

—

/

0~240

20

min

0~240

SCY Temperature data recording period

0: shielded

10

min

recorder

If there is no operation for 60 seconds under the quick setting menu, it will automatically exit the quick setting menu and return to normal display.

11

a

bc

°C
Ref.

°C DOOR
Fr.

ALARM

USB

TEMPERATURE CONTROL PRINT

h
(USB)

g f ed (optional printer)

Type B control panel

Function description of Type B control panel(ApplicabletoDW-FL450,DW-YL450)

a. 4.0 -20.0 is a temperature display window, which displays the average temperature of the upper chamber and the lower chamber of the freezer body in °C under normal operation. (The upper and lower chambers of DW-YL450 are set at -10 ~ -25°C; The upper and lower chambers of DW-FL450 are set at -20 ~ -40°C; Different prompt characters can be displayed in the setting state (see below for details);
b. Door opening indicator: When the door is opened, the indicator lights up. After more than 1 minute, the door opening alarm indicator light will be on and the buzzer triggered, displaying “door.”
c. Fault indicator light: When the product runs normally, the indicator light is off; The indicator light is on for operation abnormality.
d. “PRINT ” (optional printer): The system can keep 7 days of data for printing, and press the print key to print the temperature within the set time period. e. : In parameter setting mode, reduce the parameter value. For example, when setting the set temperature, reduce the set temperature. When setting the parameter value, press and hold the down button, and the parameter will decrease rapidly.
f. : In parameter setting mode, increase the parameter value. For example, when adjust the set temperature, press this button to increase the set temperature value. When setting the parameter value, press and hold the up button, and the parameter will increase rapidly. Under normal conditions, press and hold the up key for 3 seconds to export the data thru U disk (up to 12 months’ data once time).
g. : is the set/mute key; In case of no alarm state and key unlock state, press display the ambient temperature for 5s and then return to normal display; In the unlock state, press for more than 3s, can enter the user menu.
When buzzer is triggered (including cabinet including high temperature alarm, door opening alarm, sensor fault alarm, etc.) and in the button unlock state, press for the first time, and the buzzer stops ringing, and the ambient temperature is displayed for 5s, after which the normal display is resumed (pressing the mute button is only to turn off the buzzer for alarming this abnormal state, if the fault is not eliminated after 5 minutes of mute, the buzzer will alarm again.) Then press , and the buzzer alarms, and after displaying the ambient temperature for 5s, the cabinet temperature and alarm state are resumed. In the key unlock state, can be used as a setting key.

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In unlock state and parameter setting mode, press this key to display parameter values and parameter names. If the pressing time is longer than 3 seconds, save the settings and return to the normal interface. H. USB interface Automatic export of USB data: When USB is connected to USB interface, buzzer beeps once after data transmission is completed, “USB” is displayed in the upper chamber, “on” is displayed in the lower chamber, PDF files of data of current month and last month are generated in USB, buzzer beeps once after data transmission is completed, “End” is displayed, and normal display resumes after 6 seconds.
Note: When there is less data, “USB,” “on” and “End” prompts are not displayed. Manual export of USB data: In the key unlock state, when the USB flash drive is connected and the file is not being generated, press the up key for 3 seconds, and the digital tube in the lower chamber will display “d01.” Press the key up or down key to adjust “d00~d12,” and press key to cancel the file generation (d00) or generate the PDF file of the record data of the previous months (JAN-DEC).
Note: When the alarm of the digital tube flashes and displays “LoF,” the recorder is not started; Meanwhile press and key for 3sand “LoF” disappears, the recorder is started.
2.Function Settings 1.After powering on, the machine will enter into the working state; 2.User parameter settings; Unlock: Under normal operation, press and key for 3 seconds at the same time, and the digital tube in the upper chamber will display “PS1” and the digital tube in the lower chamber will display the parameter code “0000.” Press , enter the password “0005” (when entering the user menu password, enter “0099” to restore the key lock password to the default “0005.” ) , and holding to unlock. Then press key for 3s, and the digital tube will display the parameter code “PS1,” and enter the setting and adjustment parameters. Use to scroll the parameters; Use or to increase or decrease the value; Use to temporarily store the modified values and return to the display parameters; If other parameters are modified, repeat steps ~; Press for more than 3s, save the modified parameters and return to the display parameter category. 3. Press for more than 3s, or press no key in 60s to exit the parameter setting program;
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4. Parameter display

No. Menu item

1

b1

2

b2

Parameter Range —

Suggested settings —

3

Set1

DW-YL series: -10~-25 DW-YL series: -23 DW-FL series: -20~-40 DW-FL series: -40

Remarks Hardware version Software version
Upper chamber temperature setting

4

H01

DW-YL:0.0~10.0 DW-FL:0.0~10.0

DW-YL:10.0 DW-FL:10.0

Set value of high temperature alarm set+H; When H =0, High temp alarm is disabled; When the alarm is over high temp alarm set, H1 will be displayed on the controller

5

L01

0.0~10.0

Set value of low temperature alarm set-L; When L =0, Low

5.0

temp alarm is disabled; When the alarm is below low temp

alarm set, L1 will be displayed on the controller

6

Set2

DW-YL series: -10~-25 DW-YL series: -23 DW-FL series: -20~-40 DW-FL series: -40

Lower chamber temperature setting

7

H02

DW-YL:0.0~10.0 DW-FL:0.0~10.0

DW-YL:10.0 DW-FL:10.0

Set value of high temperature alarm set+H; When H=0, cancel the alarm; When the temperature is too high, the high temperature alarm displays H02

8

L02

9

Pt

10

tH1

0.0~10.0
0-240 min 20.0~50.0

Set value of low temperature alarm set-L; When L=0,

5.0

cancel the alarm; When the temperature is too high, the

high temperature alarm displays L02

20

Print interval

40

Upper limit of ambient temperature alarm

Mode 1: It shall be judged as once after the door is

opened and closed once and heated for 5min (time

Automatic heating mode

1

Automatic heating mode

11

P1

2 Automatic heating mode

3

Always on4

Always off5

2

setting). If the door is opened and closed again during the heating period, the heating time will be updated again; Mode 2: After the compressor is running. Heater on; When the compressor stops, the heater is delayed for 1 minute for turn-off; Mode 3: When the humidity in the cabinet is more than 80%, the door heating is on, and when the humidity in the cabinet is moderately less than 60%, the door heating is off;

Mode 4: Door heating is always on;

Mode 5: Door heating is always off.

12

Ps1

13

Max

14

NIN

15

CLR

09999 –

5

User menu password settings

–

The highest temperature since last clerance

–

The lowest temperature since last clearance

–

Clearance of the Max and Min temperature records

14

Quick setting of time after power on After the power-on self-test on the display board is completed, the quick setting menu is displayed.

Menu item Menu

Menu description

Set range

Default

Unit

n Set logger module time – year

10~50

/

y Set logger module time – month

1~12

—

/

r

Set logger module time – day

01~31

—

/

Quick Settings
menu

S Set logger module time – hour F Set logger module time – minute

00~23

—

/

00~59

—

/

Pt Print interval

0~240

20

min

0~240

SCY Temperature data recording period

0: shielded

10

min

recorder

If there is no operation for 60 seconds under the quick setting menu, it will automatically exit the quick setting menu and return to normal display.

5.Alarm display

Alarm Code H01 L01 H02 L02 H03 door

Default Description Upper chamber high temperature alarm Upper chamber low temperature alarm Lower chamber high temperature alarm Lower chamber low temperature alarm
High ambient temperature alarm Door opening alarm

PF

Power failure alarm

bL

Low battery alarm

EE

Communication failure

E2

Upper chamber temperature sensor alarm

E4

Lower chamber temperature sensor alarm

Er

Data Logger not connected

Pr

USB Data logging failure

LoF

Data Logger not started

15

Note:This thermostat cannot be configured with a printer,remote alarm terminal,RS485 interface 16

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6.2 Optional function

1.Printer

The printer has been installed with a paper roll at the factory. If the paper roll is used up after a long period

of use, you can buy the same paper roll (size: thermal paper, paper width: 57.5±0.5mm, the outer diameter

of the reel: not greater than 40mm, i.e., RM57*40 back-roll paper)

Description of printer panel:

Open button. Press to open the cover;

SEL button, indicator light, for factory setting. Do not press it;

Lf button. The green indicator is the power indicator and it is normally on when the power is turned on;

Paper roll

Install the paper roll:

Press the open button 1, open the cover, install the paper roll,

close the cover plate and allow the head of the roll paper to

slightly extend out of the cover plate.

2. Remote alarm terminal, RS485 interface

Remote alarm terminal, RS485 interface and network interface

are installed in the lower part of the back of the freezer body.

N.O. COM. N.C.

Note: These configurations are standard for some models.

Normally Common Normally

RS-485

open terminal closed Remote alarm terminal

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The integrated overload protecter within our products is programmed to shut down the power supply automatically with respect to short circuit and/or system overload for the sake of protecting the entire system and crucial components such as the compressor.
7.2 Equipment Discontinuation
Deactivation: If the equipment is stored in an unsupervised area for a long time and not used, the power supply should be cut off and the inner and outer surfaces of the cabinet should be cleaned with a warm, damp soft cloth, aired and sealed. The equipment must be locked to ensure that children cannot open the cabinet door. Scrapping: When the equipment reaches the end of its service life, it should be scrapped and must be handed over to a qualified professional recycling agency for disposal per local regulations. Non- professionals are not allowed to disassemble and break down the equipment without authorization. The scrapped equipment should be placed in a designated area inaccessible to children to avoid danger.
7.3 Maintenance, Replacement, and Recovery of Rechargeable Batteries
Battery installation position: top of the cabinet and bottom inside the electrical box. 1. Battery maintenance In order to prolong the service life of the battery and avoid the product being left unused for a long time, the product must be operated for more than 24 hours every month to facilitate charging; The equipment should be connected to power supply regularly (generally once a month) and turn on the power switch and battery switch for a period of time to complete the charging if it’s not used for a long time,and each charging time should not be less than 24 hours; Power switch and battery switch should be turned off in time after discontinuation of equipment, otherwise it will cause battery capacity loss and in serious cases battery permanent damage could happen; The main power switch must be turned off during a long-term power outage or during transportation, otherwise long-term discharge causes power loss in battery and even permanent damage to the battery, and the display is abnormal after re-energizing; The battery is consumable, with a service life of about 2-3 years. If the battery is used improperly, such as power loss or reaching the end of battery life, it will cause a low battery alarm (refrigeration is not affected, but there is an alarm failure and influence to the use function of the printer, please contact the after-sales staff of local distributors for replacement). 2. Battery replacement and recovery Turn off the power switch and pull out the power plug from the outlet; Remove the screws on the electrical box with a screwdriver. (Note: There are high-voltage electrical components in the electrical box, therefore before opening, turn off the power supply, unplug the power plug and turn off the power lock switch of the refrigerator, and the electrical box can only be opened by qualified engineers or maintenance personnel); Pull out the battery connecting cable; (Before unplugging the battery fixing cable, pay attention to the cathode/anode of the battery and the sequence of the connecting cables, so as to prevent burning down the control system due to installation of the new battery with cathode/anode reversed. Generally, the red wire is connected to the cathode, and the black wire is connected to the anode; Use a screwdriver to remove the fastening screws on the battery fixing plate and take out the battery; For a replaced battery that can be recycled, please contact the local battery recycling agency. Tips:
In order to effectively ensure that the battery replacement meets the requirements of the control system and avoid the influence of improper operation on the system, please contact our after-sales personnel for replacement or guidance.
When the circuit is short circuit or overloaded, the overload protector will disconnect the power supply of the device. Please contact after sales at this time.
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8. Troubleshooting and Maintenance Services
Any product may fail. Please observe the operation of equipment in time during use. If there is any abnormality, please check and handle it according to the following table first. If the abnormality can’t be changed, please inform our service center in time, and we will serve you wholeheartedly to avoid losses.

Problems
Equipment does not work
Compressor is not running
The temperature does not reach the
set value
High noise
Condensation on cabinet surface Undesirable odor
The door is not closed properly,
The alarm lamp flashes and the buzzer is triggered Lighting damage (refrigeration
equipment)

Causes and solutions
Please make sure that the outlet is energized. Please make sure power plug is plugged in,not loose. Please make sure the power fuse is not disconnected. Please make sure the supply voltage is appropriate,not too low or too high.
Please make sure that the temperature is set correctly.
Please check whether the temperature inside the cabinet is too low.
Please make sure that the door is closed tightly and don’t open it too many times during a short time. Please don’t put too many items in at one time. Please make sure that the cabinet is placed on a flat ground. Please make sure that the cabinet does not contact the wall. In rainy and humid seasons, door condensation is normal, and it shall be wiped off with a dry cloth.
Equipment needs to be cleaned. Items with heavy smell are not packed.
Please make sure that the temperature is set correctly. Please check whether the temperature inside the cabinet is too low.
After the equipment is used for a period of time, the door seal becomes hard and deformed. Maintenance method: Blow the deformed part of the hot seal with a blower to
Please call the after-sales telephone and contact after-sales service personnel of MELING BIOMEDICAL for replacement. Please do not replace the parts by yourself.

Warning:

The following conditions are not faults When the compressor starts and stops, the equipment parts will make a slight impact sound; When overheated items are put in after the door is opened, high temperature alarm and high humidity alarm will be triggered in the control system (if this function is available, please refer to the alarm display table); Solution: Put the items into the equipment after they are naturally cooled. Put the items in small quantities in batches, and do not put too much at a time. After the system runs stably, the high temperature alarm and high humidity alarm will be released automatically. Slight sound of running water caused by refrigerant flowing in the pipeline. ¿ The system contains refrigerant under high pressure. Do not tamper with the system. It must be serviced by suitably qualified persons only. ¿ Connect to potable water supply only. ¿ Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance. ¿ If symbol ISO 7000-1701 (2004-01) is used, its meaning shall be explained. ¿ In order to reduce flammability hazards the installation of this appliance must only be carried out by a suitably qualified person. ¿ The refrigeration system is under high pressure. Do not tamper with it. Contact qualified service personal before disposal.
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¿ The equipment can only be repaired, maintained or improved by the engineers certified by MELING BIOMEDICAL, so as to ensure the normal operation of the equipment and the compliance with corresponding safety standards.
¿ Please clean and disinfect the equipment before notifying the maintenance engineer; During the warranty period of the equipment, the Company will not undertake the warranty obligation if the fault or damage is caused by improper use of the user.
¿ Ambient temperature for storage: -40°C-+55°C, relative humidity: 10% ~ 90%.

Model

Ambient temperature
(°C)

Climate type

Refrigerant and
loading amount

(Rated) voltage
(V~)

Rated frequency
(Hz)

Temp Range ( )

Volume (L)

(Rated) current
(A)

Weight (kg)

Exterior dimensions (DxWxH)
(mm)

DW -FL90 (Stainless steel liner)

16~32

DW -YL90 (Stainless steel liner)
DW -FL270 (Stainless steel liner)

16~32 16~32

DW -YL90 (Spraying aluminum liner

16~32

DW -YL270

16~32

DW -YL450 for condenser structure A 16~32
DW -YL450 for condenser structure B 16~32

DW -FL90 (Spraying aluminum liner

16~32

DW -FL270 (Spraying aluminum liner

16~32

DW -FL450

16~32

N

R290/45g 110

60

-20~-40 90 4.19

62 669×700×854

N R600a/55g 110

60

-10~-25 90 1.66

59 669×700×854

N R290/110g 110

60

-20~-40 270 4.22

98 640×700×1792

N R600a/55g 110

60

-10~-25 90 1.66

54 669×700×854

N R600a/97g 110

N

R600a/ 65gx2

110

N

R600a/

110

50gx2

N

R290/45g 110

60

-10~-25 270 2.51

90 640×700×1792

60

-10~-25 450 2.8

136 735×810×1960

60

-10~-25 450 2.8

136 735×810×1960

60

-20~-40 90 4.19

54 669×700×854

N R290/110g 110 N R290/42gx2 110
21

60

-20~-40 270 4.22

90 640×700×1792

60

-20~-40 450 5.26 144 735×810×1960

Model

Ambient temperature
()

Climate type

Refrigerant and
loading
amount

(Rated)
voltage (V~)

Rated
frequency (Hz)

Temp
Range (°C)

Volume (L)

(Rated)

current Weight

(A)

(kg)

Exterior dimensions (DxWxH) (mm)

DW-YL90 (Spraying aluminum liner

16-32

N

R600a/ 55g

220-230

50

-10~-25 90

0.98 54 669×700×854

DW-YL90 Stainless steel
liner

16-32

N

R600a/ 55g

220-230

50

-10~-25 90

0.98 59 669×700×854

DW-YL270 Spraying aluminum
liner

16-32

N

R600a/ 97g

220-230

50 -10~-25 270

1.53

90 640×700×1792

DW-YL270 Stainless steel
liner

16-32

N

R600a/ 97g

220-230

50 -10~-25 270

1.53

98 640×700×1792

DW-YL450 Spraying aluminum liner

16-32

N

R600a/ 65g×2

220-240

50

-10~-25 450

1.9 136 741×810×1960

DW-YL450 Stainless steel
liner

16-32

N

R600a/ 65g×2

220-240

50

-10~-25 450

1.9 162 741×810×1960

DW-YL450 H I P S

16-32

N

R600a/ 65g×2

220-240

50

-10~-25 450

1.9 128 741×810×1960

DW-FL90 Stainless steel
liner

16-32

N

R290/50 g

220-240

50

-20~-40 90

1.33 62 669×700×864

DW-FL90 H I P S

16-32

N

R290/50 g

220-240

50

-20~-40 90

1.33 52 669×700×864

DW-FL90 Spraying aluminum liner

16-32

DW-FL270 Stainless steel
liner

16-32

N

R290/50 g

220-240

50

-20~-40 90

1.33 54 669×700×864

N

R290/ 115g

220-240

50

-20~-40 270

2.8

98 640×700×1792

DW-FL270 H I P S

16-32

N

R290/ 115g

220-240

50

-20~-40 270

2.8

86 640×700×1808

DW-FL270 Spraying aluminum liner

16-32

DW-FL450 Stainless steel
liner

16-32

N

R290/ 115g

220-240

50

-20~-40 270

2.8

90 640×700×1792

N

R290/ 50g×2

220-240

50

-20~-40 450

4.50 162 735×810×1960

DW-FL450 H I P S

16-32

N

R290/ 50g×2

220-240

50

-20~-40 450

4.50 133 735×810×1960

DW-FL450 Spraying aluminum liner

16-32

N

R290/ 50g×2

220-240

50

-20~-40 450

4.50 144 735×810×1960

22

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CCtayltilyptmiempeaete

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aammoouunnt t

(RRaatteedd)
vvoollttaaggee ((VV~~))

RRaatteedd
ffrreeqquueennccyy ((HHzz))

Temp
Range (°C)

Volume (L)

(Rated)

current Weight

(A)

(kg)

Exterior dimensions (DxWxH) (mm)

DDWW–YYLL9900 ((SSpprraayyiinngg aalluummiinnuummlliinneerr

1166–3322

NN R60R065a05/0g5a5/g 222200–224400

6600

-10~-25 90

DDWW–YYLL9900 SSttaaiinnlleesssssstteeeell
lliinneerr

1166–3322

NN R60R065a05/0g5a5/g 222200–224400

6600

-10~-25 90

0.59 54 678×700×864 0.59 62 678×700×864

DDWW–YYLL9900 ((HHIIPPSS))
DDWW–YYLL227700 SSpprraayyiinngg aalluummiinnuumm
lliinneerr

1166–3322 NN R60R065a05/0g5a5/g 222200–224400

6600

-10~-25 90

1166–3322 NN R60R069a07/0g9a7/g 222200–224400

6600

-10~-25 270

0.59 1.05

52 678×700×864 90 640×700×1792

DDWW–YYLL227700 SSttaaiinnlleesssssstteeeell
lliinneerr

1166–3322

NN R60R069a07/0g9a7/g 222200–224400

6600

-10~-25 270

1.05

98 640×700×1792

DDWW–YYLL227700 ((HHIIPPSS))

1166–3322 NN R60R069a07/0g9a7/g 222200–224400

6600

-10~-25 270

DDWW–YYLL445500 SSpprraayyiinngg aalluummiinnuummlliinneerr

1166–3322

NN

R60R06a0/06a5/g 6×52g×2

222200–224400

6600

-10~-25 450

1.05 86 640×700×1808 1.4 136 741×810×1960

DDWW–YYLL445500 SSttaaiinnlleesssssstteeeell
lliinneerr

1166–3322

NN

R60R06a0/06a5/g 6×52g×2

222200–224400

6600

-10~-25 450

1.4 162 741×810×1960

DDWW–YYLL445500 HHIIPPSS

1166–3322

NN

R60R06a0/06a5/g 6×52g×2

222200–224400

6600

-10~-25 450

aalluu(Dm(DmSSWiWpinpnr-ur-auFaFmymLyLi9inl9nli0ing0gneerr))

16~32

N R290/50g 220-240 60 -20~-40 90

1.4 128 741×810×1960 1.76 54 669×700×864

DW-FL90 (HIPS)

16~32

N R290/50g 220-240 60 -20~-40 90

1.76 52 669×700×864

DW-FL90 (Stainless steel
liner)
DW-FL270 (Spraying aluminum liner)

16~32 16~32

DW-FL270 (HIPS)

16~32

DW-FL270 (Stainless steel
liner)
DW-FL450 (Spraying aluminum liner)

16~32 16~32

DW-FL450 (Plastic liner)

16~32

DW-FL450 (Stainless steel
liner)

16~32

N R290/50g 220-240 60 -20~-40 90

1.76 62 669×700×864

N

R290/ 115g

220-240

60

-20~-40 270

2.22

90 640×700×1792

N

R290/ 115g

220-240

60

-20~-40 270

2.22

86 640×700×1808

N

R290/ 115g

220-240

60

-20~-40 270

2.22

98 640×700×1792

N

R290/ 45g ×2

220-240

60

-20~-40 450

3.71 144 735×810×1960

N

R290/ 45g ×2

220-240

60

-20~-40 450

3.71 133 735×810×1960

N

R290/ 45g ×2

220-240

60

-20~-40 450

3.71 162 735×810×1960

23

24

Zhongke Meiling Cryogenics Company Limited
Address: No 1862 Zishi Road, Hefei City, Anhui, P.R. China Production Address: No.1862 Zishi Road, Economic and Technological Development Zone, Hefei City Post Code: 230601 Email: zkmeiling@zkmeiling.com; technical.service@zkmeiling.com Website: www.melingbiomedical.com Material Code: 890375568 Production Date: See nameplate on the freezer body Prepared in: August 2023
28

References

• Ultra Low Temperature Freezer,Lab Refrigerator And Freezer,Pharmacy Refrigerator Freezer

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