Instrument Introduction
DWXH series Cooling Circulator, adopt compression refrigeration mode, which is able to provide cryogenic liquid for evaporating low boiling point material. It can cool the test tube, reactor directly under low temperature chemical reaction or store chemical and biological products under low temperature. Also it can be combined with rotary evaporator, vacuum freeze-drying oven, and vacuum pump, etc.
Structure Diagram
Instrument Features
■ Large-capacity open bath combined with outside circulation can not only be used as freezing tank, but also provide cooling fluid
■ Original imported fully-enclosed compressor unit and circulating pump, with advanced performance and reliable quality
■ International advanced refrigeration unit constitute with special relay, protector, condenser, can work continuously
■ With the setting and digital display of temperature, the operation is simple and clear
■ Circulation system adopts SUS304 stainless steel and high macromolecule corrosion-resistant materials which have the properties of anti-rust, anti-corrosion and anti-pollution against cryogenic liquid.
■ Anti-pollution and prevent scale formation, effectively protect large precision instruments and equipments
■ With delay, over-pressure, over-heated, over-current, cutting out and many kinds of protection
► According to the requirements of the user, all Models can be reasonably configured between temperature and cooling capacity or volume
► Other temperature ranges can also be customized
Technical Parameters
Model | DWXH-5/40 | DWXH-10/40 | DWXH-20/40 | DWXH-30/40 | DWXH-50/40 | |
Fluid tank volume | 5 | 10 | 20 | 30 | 50 | |
Temperature range | -40 ℃ - RT | |||||
Temperature control accuracy | ±0.5 | |||||
Optimum ambient temperature | ≤25 | |||||
Power supply | 220/50 | 380/50 | ||||
Setting and display mode of temperature | Touch-key digital setting, LED digital display (minimum unit 0.1 ℃) | |||||
Temperature sensor index | Pt100 | |||||
Setting mode | Any setting within the applicable scope | |||||
Safety protection | Delay, over-pressure, overheating, over-current, cutting out | |||||
Cooling capacity (W) | -10℃ | (A)1241 | 1650 | 2272 | 5015 | 8553 |
-20℃ | (A)850 | 1074 | 1658 | 3245 | 6107 | |
-30℃ | (A)600 | 590 | 1118 | 2015 | 3971 | |
-40℃ | (A)400 | 420 | 653 | 992 | 2146 | |
Refrigeration unit | Power | (A)700 | 1000 | 1300 | 2300 | 4500 |
Current | (A)3.1 | 4. 5 | 5.9 | 10. 4 | 20 | |
Refrigerant | R404A | |||||
Circulating pump | Power | 100 | ||||
Flow rate (L/min) | 20 | |||||
Lift | 7 | |||||
External circulation interface | Outside diameter 10.5 mm stainless steel valve | Outside diameter 16 mm stainless steel valve | ||||
Inside diameter and height | Ø 200X150 | Ø 200X250 | Ø 250X300 | Ø 300X350 | Ø 350X400 | |
Maximum flask capacity | 2L | 2L/5L | 5L | 10L | 10L | |
Overall unit dimensions | 480X360X600 | 480X360X700 | 520X440X860 | 680X530X960 | 720X600X1130 | |
Shell material | Cold-rolled plate with static plastic spraying surface | |||||
Thermal insulation pipe | 2 pieces (2000 mm x 2) | |||||
Upright | 1 piece | |||||
Valve | 1 set |