FN311A Nitrogen Purity Analyzer is a new-type intelligent industrial online analyzer researched and developed by combining imported high-performance electrochemical sensor, which is used to detect oxygen and display nitrogen purity, with new microcomputer technology.

Application fields:

Detecting oxygen content in nitrogen production by air separation, chemical process, magnetic materials, and protective gases for high-temperature sintering furnaces and displaying it as nitrogen purity

Instrument characteristics:

Imported fuel cell sensor adopted, featuring long service life, high accuracy, and quick response;

Small volume and light weight, making the instrument especially suitable for places where the installation space is relatively small;

Automatic range shifting; upper/lower limit alarm can be set at will within the whole range;

Alarm point can be set at will within the whole range;

RS232 or RS485 communication interface available for two-way communication with computer.

Technical parameters:

1. Measurement range: 75～99.99% N2 optional;

2. Accuracy: ≤ ±2% F.S;

3. Stability: Zero drift ≤ ±1% F.S/7d;

                  Span drift ≤ ±1% F.S/7d;

4. Repeatability: ≤ ±0.5%;

5. Sample gas flow: 300±10 ml/min;

6. Response time: T90 ≤ 15 sec.;

7. Sample gas pressure: 0.05 MPa ≤ Inlet Pressure ≤ 0.1 MPa;

8. Resolution: 0.01%;

9. Contact capacity: 220 VAC, 1A      24 VDC, 1A;

10. Output signal: 4～20 mA;

11. Operating environment: Temperature: －5℃～＋45℃;

                                              Humidity: ≤ 90% RH;

12. Operating power supply: 220 VAC±10%, 50 Hz±5%;

13. Overall dimensions: 160 mm (W) × 80 mm (H) × 250 mm (D);

14. Mounting dimensions: 152 mm (W) × 76 mm (H);

15. Weight: About 1 kg