Picarro
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| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G2132-i |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| δ¹³C Precision (1σ, 1-hour average) | < 0.4‰ at [CH₄] > 10 ppm |
| δ¹³C Drift (24 h, 1-hr avg) | < 1.5‰ at [CH₄] = 10 ppm |
| CH₄ Concentration Precision (30 s, 1σ) | 1 ppb + 0.05% of ¹³CH₄ reading |
| CH₄ Dynamic Range | 1.8–1500 ppm (operational) |
| CO₂ Range | 100–4000 ppm |
| H₂O Range | 0–5% RH |
| Sample Temp. | –10 to 45 °C |
| Sample Pressure | 300–1000 Torr (40–133 kPa) |
| Flow Rate | ≤25 sccm (at 760 Torr) |
| Temperature Stability | ±0.005 °C |
| Pressure Stability | ±0.0002 atm |
| Environmental Operating Range | 10–35 °C, <99% RH (non-condensing) |
| Data Interfaces | RS-232, Ethernet, USB, analog (0–10 V) |
| Dimensions (Analyzer) | 43.2 × 17.8 × 44.6 cm |
| Weight | 27.4 kg (incl. external pump) |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G2201-i |
| Instrument Type | Stable Gas Isotope Ratio Analyzer |
| Measurement Precision | δ¹³C-CO₂ < 0.12‰ (1σ, 1 hr), δ¹³C-CO₂/δ¹³C-CH₄ dual-species mode < 0.16‰ (1σ, 1 hr) |
| Measured Species | CO₂, CH₄, H₂O |
| Operating Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Temperature Stability | ±0.005 °C (cavity) |
| Pressure Stability | ±0.0002 atm (cavity) |
| Sample Flow Rate | < 50 sccm (typ. 25 sccm at 760 Torr) |
| Dimensions | 43.2 × 17.8 × 44.6 cm (W×H×D) |
| Weight | 25.4 kg (incl. external pump) |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G2203 |
| Detection Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Target Gases | Methane (CH₄) and Acetylene (C₂H₂) |
| Measurement Sensitivity | Sub-ppb |
| Response Time | <2 seconds |
| CH₄ Precision (2-s) | 3 ppb |
| C₂H₂ Precision (2-s) | <0.6 ppb |
| CH₄ Drift (8-h, STP) | <4 ppb |
| C₂H₂ Drift (8-h, STP) | <1.5 ppb |
| Environmental Stability | Engineered for minimal thermal drift across −10 °C to +45 °C operating range |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G2401 |
| Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Form Factor | Benchtop/Field-Deployable |
| Response Time | < 5 s |
| Repeatability | CO₂, CH₄, CO, H₂O |
| Measurement Range | CO₂ (0–1000 ppm), CH₄ (0–20 ppm), CO (0–5 ppm), H₂O (0–7 %v/v) |
| Accuracy (1σ, 5 s) | CO₂ < 50 ppb, CH₄ < 1 ppb, CO < 15 ppb, H₂O < 30 ppm |
| Drift (24 h, peak-to-peak) | CO₂ 100 ppb, CH₄ 1 ppb, CO 10 ppb, H₂O ±5% of reading |
| Temperature Control Stability | ±0.005 °C |
| Pressure Control Stability | ±0.0002 atm |
| Operating Temp | +10 to +35 °C |
| Storage Temp | −10 to +50 °C |
| Power | 100–240 VAC, 47–63 Hz |
| Weight | 27.4 kg (incl. external pump) |
| Dimensions (Analyzer) | 43.2 × 17.9 × 44.5 cm |