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| Brand | Leshi |
|---|---|
| Origin | Beijing, China |
| Model | 9100FIR |
| Instrument Type | Portable FTIR Spectrometer |
| Resolution Options | 0.7 cm⁻¹ (unapodized), 1 cm⁻¹, 2 cm⁻¹, 4 cm⁻¹, 8 cm⁻¹ |
| Scan Speed | Adjustable up to 1 scan/sec (dependent on resolution) |
| Signal-to-Noise Ratio (SNR) | >20,000:1 (peak-to-peak, 60-sec acquisition), >120,000:1 (RMS, 60-sec acquisition) |
| Wavenumber Accuracy | ±0.01 cm⁻¹ |
| Operating Sample Temperature | Up to 180 °C (hot-wet gas analysis) |
| Detector | Room-temperature DTGS |
| Reference Laser | VCSEL-based stabilization |
| Internal O₂ Sensor | Zirconia-based electrochemical sensor |
| Particulate Filtration | Dual-stage, <2 µm |
| Nitrogen Purge Interfaces | Dual-path (sample cell reverse purge + optical path purge) |
| Data Output | Real-time spectral & concentration data, Excel-compatible export |
| Compliance | HJ 919–2017, HJ 920–2017, HJ 1011–2018, HJ 1240–2021, HJ 1330–2023 |
| Brand | Leshi |
|---|---|
| Origin | Beijing, China |
| Model | 9100FIR |
| Instrument Type | Portable |
| Spectral Range | 485–8500 cm⁻¹ |
| Resolution Options | 1, 2, 4, or 8 cm⁻¹ |
| Scan Speed | Up to 1 scan/sec (resolution-dependent) |
| Signal-to-Noise Ratio | >20,000:1 (peak-to-peak, 60-sec acquisition), >120,000:1 (RMS, 60-sec acquisition) |
| Wavenumber Accuracy | ±0.01 cm⁻¹ |
| Operating Sample Temperature | Up to 180 °C (hot-wet sampling) |
| Detector | Ambient-temperature DTGS |
| Brand | Protea |
|---|---|
| Origin | United Kingdom |
| Model | AtmosFIRair |
| Instrument Type | Portable FTIR Spectrometer |
| Wavenumber Range | 485–8500 cm⁻¹ |
| Resolution Options | 1, 2, 4, or 8 cm⁻¹ |
| Scan Speed | Up to 1 spectrum per second (resolution-dependent) |
| Signal-to-Noise Ratio | >20,000:1 (peak-to-peak, 1-min acquisition), >120,000:1 (RMS, 1-min acquisition) |
| Wavenumber Accuracy | ±0.01 cm⁻¹ |
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