Note:

First, slowly open the nitrogen cylinder valve to set the outlet pressure between O.1 MPa and 0.2 MPa. 

Then, turn the pressure adjustment knob on the nitrogen flow control valve and fine-tune it until the pressure gauge reads approximately 0.02 MPa. During operation, adjust the pressure accordingly based on the number of orifices in use (typically within the range of 0.02 to 0.05 MPa).

Product Application:

The dry-type nitrogen evaporator is designed for high-throughput sample concentration and pretreatment, widely applied in drug screening, hormone analysis, liquid chromatography (LC), gas chromatography (GC), mass spectrometry (MS) and other analytical workflows.
Working Principle:

Nitrogen is blown onto the surface of heated samples to rapidly evaporate and separate solvents, achieving oxygen-free sample concentration while maintaining high sample purity. 
Compared with traditional rotary evaporators, this instrument can process dozens of samples simultaneously, drastically shortening sample preparation time with advantages of time efficiency, simple operation and fast processing speed.

Main Features：

1. Each purge needle can be controlled independently, with 12 airway control switches, no gas wasted.

2. The heater enables the sample to be quickly and effectively heated to the evaporation temperature, while the gas is blown from the gas chamber through the gas needle to the surface of the solution, which promotes the rapid evaporation of the solution and the concentration of the sample.

3. The whole working system consists of adjustable gas chamber and heater.

4. The position of the gas needle in the air cavity can be changed to make it suitable for different test tubes. The standard gas needle length is 150mm.

5. The height of the air cavity can be adjusted according to the height of the solvent level. When concentrating toxic solvents, the entire system can be placed in a fume hood.

6. Automatic fault detection and alarm function.

7. Standard equipped with air cavity and special adjustable bracket.

8. Built-in over-temperature protection device.

9. Instant temperature display, time decreasing display.

Technical Parameters:

Temperature range：RT+5~150℃

Time setting：0-99h59min

Temperature stability@100℃：≤±0.5℃

Temperature stability@150℃：≤±1℃

Display accuracy：0.1℃

Heating time (40℃ to 150℃)：≤30min

Max. Nitrogen pressure：0.04Mpa (using the number of air needles ≤ 12)

Nitrogen flow：0~10L/min

Gas needle head outer diameter(mm)：φ7mm

Gas needle length(mm)：150mm ( test tube diameter ≥φ10mm)

Max lifting distance  ：285mm

Screen display：LCD liquid crystal display (5-segment program controllable)

Sample handling capacity：1 standard module

Size：240×200×120（mm）

Net weight：7.0kg

Power：200W

Standard module：12 holes*16.5mm

Optional Modules：（Not included，You can contact us if you need it.）

φ15.5mm*12 holes

φ19.5mm*12 holes

φ17.5mm*12 holes

φ10.7mm*12 holes

φ18.5mm*12 holes

φ20.5mm*12 holes

φ13.5mm*46 holes