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| Brand | Schütz SIGAS |
|---|---|
| Origin | Jiangsu, China |
| Model | S-ANALYZER 200 NDUV |
| Instrument Type | Online Gas Analyzer |
| Detection Principle | Non-Dispersive Ultraviolet (NDUV) Absorption |
| Maximum Permissible Error | ≤ ±2% FS |
| Zero Drift | ≤ ±2% FS / 24 h |
| Span Drift | ≤ ±2% FS / month |
| Repeatability | ≤ ±1% FS |
| Response Time | <25 s (at 60 L/h stable flow) |
| Warm-up Time | 3–30 min (at 20°C, depending on detector configuration) |
| Resolution | 0.01% (O₂ channel), 0.1 µmol/mol (for SO₂/NO/NO₂/etc.) |
| Operating Flow Rate | (0.2–1.2) L/min (±0.02 L/min stability required) |
| Inlet Temperature | 5–35°C |
| Inlet Pressure | ≤116 kPa |
| Dew Point | 5°C ±0.1°C (mandatory for SO₂/NO channels) |
| Particulate Load | ≤100 µg/m³, ≤1 µm |
| Zero Gas | 99.999% N₂ |
| Span Gas | 75–125% of full scale |
| Mid-point Calibration Gas | 37.5–62.5% of full scale |
| Analog Output | 4–20 mA (normal operation), 2 mA (fault/alarm/preheat) |
| Digital Outputs | 6 relay channels (configurable for fault, auto-calibration control, and concentration alarms) |
| Communication | RS232 (DB9 female), RS485 Modbus RTU |
| Power Supply | 198–242 V AC, 50/60 Hz, <125 W |
| Enclosure Rating | IP41 (EN 60529) |
| Weight | ~10 kg (net), ~19 kg (packaged) |
| Display | 5.6" color LCD touchscreen with tri-screen interface (numerical status, detailed parameters, real-time concentration curves) |
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