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