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| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Product Category | Imported Instrument |
| Model | 49i |
| Instrument Type | Online Continuous Monitor |
| Measurement Range | 0–0.05, 0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100, 200 ppm |
| Lower Detection Limit | 0.5 ppb |
| Response Time (T₉₀) | 20 s |
| Zero Drift (24 h) | <1.0 ppb |
| Span Drift (30 days) | <1% of full scale |
| Resolution | 1.0 ppb |
| Zero Noise | 0.25 ppb RMS (60-s averaging) |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Import Status | Imported |
| Model | 49i-PS |
| Instrument Type | Online Calibrator |
| Measurement Range | 0–0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 5.0 ppm |
| Detection Limit | 1.0 ppb |
| Response Time | 20 s |
| Zero Drift | 0.25 ppb RMS (60-s averaging) |
| Resolution | 1.0 ppb |
| Ozone Source Output | 0.25–1.000 ppm at 3–4 L/min |
| Ozone Source Stability | ±4 ppb or ±1% of reading (whichever is lower) |
| Linearity | ±1% of full scale |
| Accuracy | ±1.0 ppb |
| Brand | Thermo Fisher Scientific |
|---|---|
| Origin | USA |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Import Status | Imported |
| Model | 49i |
| Pricing | Upon Request |
| Measurement Principle | UV Photometry (254 nm) |
| Detection Range | 0–200 ppm / 0–400 mg/m³ (selectable dual-range or auto-ranging) |
| Zero Noise | 0.25 ppb RMS (60-sec average) |
| Limit of Detection | 0.50 ppb |
| 24-hr Zero Drift | <1.0 ppb |
| Monthly Span Drift | <1% of full scale |
| Response Time (T90) | ≤20 seconds |
| Compliance | EPA EQOA-01, ISO 13964, ASTM D5012, US EPA Reference Method for O₃ |
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