FN312B (C, D) Hydrogen Analyzer is an instrument online detecting hydrogen content in gas mixtures and developed by the Company by combining micro-flow thermal-conductivity gas sensor with the latest microcomputer processing technology.

Application fields:

Online analysis on hydrogen content in gas mixtures in industries of petroleum and chemicals, metallurgy, electric power, proportioning, and ammonia decomposition

Instrument characteristics:

High-performance micro-flow thermal-conductivity sensor adopted, featuring long service life, high sensitivity, quick response, and high stability;

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

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

Upper/lower limit alarm output can be set at will within the whole range;

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. Detection range: 0.00～99.99% H2, intermediate range optional;

2. Accuracy: ≤ ±2% F.S;

3. Resolution: 0.01%;

4. Stability: Zero drift ≤ ±2% F.S/7d;

Span drift ≤ ±2% F.S/7d;

5. Repeatability: ≤ ±1%;

6. Preheating time: ≤ 15 min;

7. Response time: T90 ≤ 15 sec.;

8. Sample gas flow: 300±10 mL/min;

9. Sample gas pressure: 0.05 MPa ≤ Inlet Pressure ≤ 0.25 MPa;

10. Output signal: 4～20 mA or 0～10 mA;

11. Contact capacity: 220 VAC, 1A     24 VDC, 2A;

12. Operating environment: Temperature: -10℃～＋45℃;

                                              Humidity: ≤ 90% RH;

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

14. 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);

15. 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);

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