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AQMS-550 is equipped with an internally mounted catalytic converter set at 315°C to convert H₂S to SO₂. Bypassing the sample through an SO₂ scrubber which removes any SO₂, the H₂S is converted to SO₂ using this internal H₂S converter and measured using the pulsed fluorescence technique. AQMS-550 H₂S analyzer adopts UV fluorescence principle with an internal thermal catalytic converter to measure H₂S in ambient air at levels commonly required.
AQMS-550 is equipped with an internally mounted catalytic converter set at 315°C to convert H₂S to SO₂. Bypassing the sample through an SO₂ scrubber which removes any SO₂, the H₂S is converted to SO₂ using this internal H₂S converter and measured using the pulsed fluorescence technique.
Principle
AQMS-550 H₂S analyzer adopts UV fluorescence principle with an internal thermal catalytic converter to measure H₂S in ambient air at levels commonly required.
| Principle | UV Fluorescence |
| Measured Gas | H₂S in ambient |
| Range | (0-500) ppb, expandable |
| Measurement Units | ppb, ppm, μg/m³, mg/m³ (Selectable) |
| Lower Detectable Limit | ≤0.5 ppb (RMS) |
| Zero Noise | ≤0.25 ppb (RMS) |
| Span Noise | ≤2.5 ppb (RMS) |
| Zero Drift | ±1 ppb/24hours |
| Span Drift | Span drift(20% F.S.): ±5 ppb Span drift(80% F.S.): ±10 ppb |
| Sample Flow Rate | (650±65) sccm |
| Linearity | <1% F.S. |
| Response Time | T90≤120 s |
| Rise/Fall Time | <30 second |
| Data Transmission | 2 channel analog (4-20) mA; 2 analog (0-5) V; 12 digital input/output; 4-way relay output |
| Output | RS232, RS485, Ethernet |
| Operating Temperature | 0-40°C |
| Power Requirement | (220±10%) V AC/(45-55) Hz, power≤350 W |
| Dimensions | 178(H)×432(W)×609(D)mm |
| Weight | Host: ≤22 kg HTC conversion module: ≤10 kg |
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