CHN Elemental Analyzer

Technical parameters

1. Measurement range:

Cad: 50ppm or 0.005%-100%

Had: 200ppm or 0.02%-50%

Nad: 80ppm or 0.008%-50%

2. Accuracy:

Cad: 0.5%

Had: 0.15%

Nad: 0.08%

3. Single sample analysis time:

6-7min

4. Sample weighing

Recommended: 100-120mg

5. Test method

Cad: Optimized for low noise, non-dispersive infrared absorption method

Had: Optimized for low noise, non-dispersive infrared absorption method

Nad: Optimized for low drift, thermal conductivity detection method

6. Gas specifications required by experiments

Carrier gas: helium, purity higher than 99.996%, 0.25 ± 0.01MPa

Assistant gas: oxygen, only when carbon and hydrogen measured, the purity higher than 99.50%, when measuring nitrogen, purity higher than 99.995%, 0.25 ± 0.01MPa

Power gas: compressed air or nitrogen, must be free of oil and water, 0.25 ± 0.01MPa

7. Furnace type:

Resistance furnace, the maximum temperature 1050 ℃

8. Automatic sample-falling head:

30 samples loaded at one time

9. Power supply:

Detecting Power Supply: AC220V ± 22V, 50Hz, 2A

Heating unit: AC220V ± 22V, 50Hz, 20A

10. Host machine dimension (mm): 710×690×930

11. Host machine weight (kg): 120

Standard configuration of the instrument

CHN5000 Host machine   1 set

Lenovo/HP computer     1 set (Optional)

Printer                 1 set (Optional)

Technical features

12. Set out 30 samples at one time, the instrument can automatically send samples, fall samples, experiment, test cycle, may increase or decrease and replace the sample at any time during the analysis.

13. Using PID temperature control, furnace temperature control accuracy can reach ± 1 ℃, thermostatic chamber and air storage tank temperature control accuracy can reach ± 0.1 ℃.

14. Use absolute pressure sensor for monitoring the whole gas line pressure of the instrument, automatic air tightness check to the whole gas line and furnace, infrared pool, thermal conductivity pool and air storage tank.

15. The instrument uses ultra-low drift infrared pool and thermal conductivity pool as the core component of elemental analysis, so that the experimental results are more accurate.

16. With unique airtightness detection device, can detect the tightness of the gas line in sections under the program control, determine the failure to a specific range. Convenient for gas line maintenance.