1. TOPTION Brand DL series low-temperature coolant circulation pump is totally enclosed air-cooled refrigeration 

compressor and microprocessor based control system to provide low-temperature cooling water (liquid) flow or low 

temperature water (liquid) flow.

2. In order to satisfy the cooling water and low-temperature liquid to temperature or constant temperature equipment, 

such as evaporation, fermentation, electron microscopy, low temperature chemical reactors, electron spectroscopy, 

mass spectrometry, densitometer, freeze-drying apparatus, vacuum coating apparatus, the reactor,etc. 

3. DL series cooling circulator Can also make a variety of low temperature volume directly in the tank experiment. 

1. Air-cooled completely closed refrigeration compressor, refrigeration system, intelligent control computer automatically 

open, refrigeration systems with delays, overheating, over-current protection devices such as multiple.

 
2. Circulating pump liquid output can be cold tank, cooling or constant temperature machine outside the experimental 

container or a second temperature field.

 
3. Microcomputer equipped with timer off function, this feature can be turned from 0 to 100 hours to set the time off any 

time.

 
4. Uses the double window, red, green and two color LED display temperature settings and temperature measurement, 

digital resolution of 0.1 ℃, the temperature measurements may be amended computer error, so the number was 0.1 ℃ 

accuracy.

 
5. With computer software lock function, lock the system parameter setting, independent of staff can not change the 

configuration parameters.

 
6. All of the above operations were based intelligent controller on the completion of pressing the touch pad, easy to operate. 

7. Products easy to use, can work.