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| Brand | Spectro Scientific |
|---|---|
| Origin | USA |
| Model | InfraCal 2 |
| Instrument Type | Portable |
| Measurement Principle | Infrared Absorption Spectrophotometry (Fixed-Wavelength at 3.4 µm) |
| Measurement Range | 0.1–5000 ppm |
| Detection Limit | 0.1 ppm |
| Accuracy | < ±1% |
| Resolution | 0.1 ppm |
| Optical Bandpass | 3.4 µm filter with ±10 cm⁻¹ wavenumber tolerance |
| Dimensions | 17 × 19.8 × 13.2 cm |
| Weight | 2.6 kg (net), 3.2 kg (with Li-ion battery) |
| Display | 640 × 480 color touchscreen |
| Power Supply | AC/DC adapter (110–220 V, 50–60 Hz) or 18 V DC / 3.3 Ah rechargeable Li-ion battery (≥16 h operation) |
| Operating Environment | 5–40 °C, <90% RH (non-condensing) |
| Connectivity | USB, RS232 |
| Compliance | ASTM D7066 (transmission mode), EPA Method 1664 (reflectance mode) |
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