FN311B (C) Oxygen Content Analyzer is a new-type intelligent industrial online analyzer researched and developed by combining imported high-performance electrochemical sensor with new microcomputer technology based on the principles of electrochemical detection.

Application fields:

Online analysis on oxygen content in protective gases for high-temperature sintering furnaces of nitrogen production by air separation, chemical process, magnetic materials, and so on; in chemical, metallurgical, glass, and building material industries; and in coal gas

Instrument characteristics:

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

Chinese human-machine dialog menu, making operation intuitive and convenient;  

Timed automatic storing function, and stored data available for viewing at any time;

Automatic range shifting; alarm point can be set at will within the whole range;

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

Built-in air extracting pump and external filter can be added upon selection;

Type B adopts economical 128×64 lattice LCD; type C uses engineering 320×240 lattice LCD; and type D employs intelligent 800×400 touch screen in combination with embedded RAM technical instrument.

 Technical parameters:

1. Measurement range: 0.00～1.00%/2.00%/10.0%/25% O2 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 or 0～10 mA;

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

                                              Humidity: ≤ 90% RH;

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

13. Overall dimensions: Type B: 270 mm (W) × 132 mm (H) × 330 mm (D);

                                      Type C 3U: 485 mm (W) × 133.5 mm (H) × 360 mm (D);

                                      Type D 4U: 485 mm (W) × 178 mm (H) × 360 mm (D);

14. Mounting dimensions: Type B: 238 mm (W) × 132 mm (H);

                                           Type C 3U: 450 mm (W) × 134 mm (H);

                                           Type D 4U: 450 mm (W) × 178 mm (H);

15. Weight: Type B: about 3 kg; Type C: about 8 kg; Type D: about 10 kg