Drawell MDF-40V50 User manual

User Manual
Please read operating manual before installation and operation.
Drawell International Technology Limited
Shanghai Drawell Scientific Instrument Co.,Ltd
Add : Suite 1506,Lane581 XiuChuan Rd.,PuDong New Area,Shanghai,China
Tel: [phone]
Fax: [phone]
Web : www.drawell.com.cn
Email : [email protected]

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OPERATION MANUAL
MEDICAL FREEZER
MDF-40V50
VERSION: 2017-4
(MDF-40V50)

1
Statement:
Thank you for buying our medical refrigerator. For your safe and convenient use and reasonable maintenance
of the product, please read the operation instruction carefully and keep it properly for reference.
For damages of any instrument due to the fact that the user does not use the product according to the
instrument operating environment declared in the handbook or injuries due to the fact that individual does not
operate the product according to safety instructions, we have no obligations and responsibilities to be in
charge of them.
The user must accomplish the following three points when using the product:
1. Always use protective devices correctly (including clothes, gloves, goggles, etc.);
2. Always adopt good health habits and operate strictly according to the product instruction;
3. Everyone is obliged to be in charge of one’ own safety.
4.Not Allowed direct contact with patients, use or affect the product and in the product storage items.
5.Products without sterilization.
6.The product is used only for storage, not during use with other materials, Organization and Technology in
combination.
7.Products can not be used to measure or analysis.
8.Life and storage life of the products is irrelevant.
9.Some models need to regularly add supplies, such as printer paper, test tubes, etc.
10.This product is non-explosion-proof products.
11.Non flash freeze equipment, is limited to keeping the temperature used.
Due to our fast product update, there may be differences between function of the product you bought and the
function mentioned in the instruction, please in kind prevail.

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CONTENTS
I. Main performance and characteristics of the product................................................ 3
II. Precautions....................................................................................................................... 3
III. Range of application.......................................................................................................5
IV. Preparation for use.........................................................................................................5
V. Structure diagram............................................................................................................5
VI. Start and test machine.................................................................................................. 6
VII. Model and main technical parameters...................................................................... 6
VIII. Functions and basic operation of controller............................................................ 7
8.1 Control panel structure........................................................................................... 7
8.1.1 Keys Combination..........................................................................................7
8.1.2 How to see the set point............................................................................... 7
8.1.3 How to change the set point.........................................................................7
8.1.4 How to start a manual defrost (only xr02cx)............................................. 8
8.1.5 How to change parameter value................................................................. 8
8.2 parameters................................................................................................................8
8.3 Digital inputs...........................................................................................................10
8.4 Alarm signaling...................................................................................................... 10
8.4.1 alarm recovery..............................................................................................11
8.5 connection diagram...............................................................................................11
8.5.1XR01-02CX –1 X 8A –12VAC/DC....................................................11
8.5.2 XR01-02CX –20A OR 8A -- 110VAC OR 230VAC...........................11
IX. Schematic circuit diagram.......................................................................................... 12
X. Storage essentials.........................................................................................................12
XI. Maintenance..................................................................................................................13
XII. Non-fault phenomenon.............................................................................................. 13
XIII. General fault analysis and removal........................................................................ 14
XIV. Packing List................................................................................................................ 14

3
I. Main performance and characteristics of the
product
Thermal insulating door and secondary seal door are adopted for use convenience. The loss of
refrigeration capacity is reduced and the energy consumption is saved.
Air-cooled condenser is adopted which is provided with good heat dissipation and fast refrigerating speed.
Stainless steel inner and tube-in-sheet evaporator are adopted. Things can be put in or taken out easily.
The refrigeration effect is good and the freezer can be cleaned easily.
Import microcomputer temperature controller is adopted for accurate temperature control. The
temperature inside the freezer is displayed digitally. With elegant appearance, the freezer can be used
conveniently. Users can regulate and check the inside temperature and the working state without opening
the door.
The microcomputer control is more accurate and safer.
The system is equipped with a safety protection device for ensuring the safe and reliable operation of the
system.
The refrigerating system all adopts imported parts which provide good reliability and long service life to the
system.
II. Precautions
The sign of “ ” means the place is dangerous to human bodies, or the use pattern is harmful to
products, or alarm users should pay special attention to this.
：It is strictly prohibited to unpack the outer packing case for transportation.
The ultra low temperature freezer should be used under the environmental temperature of 10℃~32℃. It is
suggested to use it under the environment with air conditioning.
：The slant angle of the body of the ultra low temperature freezer should not be larger than 45°in
transportation to avoid faults of the compressor or the system.
：After unpacked, the freezer should be placed on flat and firm ground near to the power socket.
：Do not put it near the heat source and avoid the sunshine.
：The ultra low temperature freezer should be stored in a dry and drafty room without corrosive gas
surrounding.
：If the ultra low temperature freezer has to be stopped for a long period, it should be cleaned inside and
outside and then covered properly with a plastic housing.
：The power supply is 220V/50Hz. If the voltage is instable, please equip a power regulator which is
above 3000VA and please use it alone.
：It is necessary to provide individual one-phase three-hole socket and proper fuse for the ultra low
temperature freezer.
：The ultra low temperature freezer must be provided with reliable independent ground wire. The ground