FN312C Explosion-proof Hydrogen Analyzer is an explosion-proof 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:

Explosion-proof online analysis on hydrogen content in gas mixtures in industries of petroleum and chemicals, metallurgy, electric power, and ammonia decomposition

Instrument characteristics:

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

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

320×240 lattice LCD, able to simultaneously display parameters like hydrogen content, date, time, and internal temperature of instrument;

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

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

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

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

Isolated explosion-proof case adopted, so that the instrument can be directly installed on the site.

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;

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

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

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

                                              Humidity: ≤ 90% RH;

14. Explosion-proof grade: Exd Ⅱ CT6

15. Overall dimensions: 300 mm (W) × 400 mm (H) × 200 mm (D);

16. Mounting dimensions: 330 mm (W) × 300 mm (H), with the center line as benchmark;

17. Mounting mode: Wall-mounted, mounting bolt M8×50;

18. Weight: About 25 kg