LGR
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| Brand | LGR |
|---|---|
| Origin | USA |
| Model | CCIA/WVIA |
| Measurement Principle | Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) |
| Isotopic Ratios | δ¹³C/δ¹⁸O (CO₂), δ²H/δ¹⁷O/δ¹⁸O (H₂O) |
| Precision (1σ) | δ¹³C ≤ 0.1‰ (5 min), δ¹⁸O ≤ 1‰ (5 min), δ²H ≤ 0.2‰ (100 s), δ¹⁷O ≤ 0.05‰ (100 s) |
| Measurement Frequency | Up to 2 Hz (WVIA), 1 Hz (CCIA) |
| Effective Optical Path | >2 km |
| Operating Temperature | 0–45 °C |
| Sample Temp Range | −20 to +50 °C |
| Pressure Control Accuracy | ±0.001 torr |
| Temperature Control Accuracy | ±0.003 °C |
| Data Interfaces | RS-232, Ethernet, USB |
| Power | 115/230 VAC, 50/60 Hz, 550 W max |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model | DLT-100 (Benchtop), RMT-200 (Portable) |
| Detection Principle | Off-Axis Integrated Cavity Output Spectroscopy (Off-Axis ICOS) |
| Measurement Range | 0.3–25 ppm CH₄ |
| Precision | 1 ppb @ 1 Hz (ambient conditions) |
| Response Time | <0.05 s (with external pump), 25 s (internal pump) |
| Accuracy | Better than ±1% of reading |
| Operating Temperature | 0–50 °C |
| Relative Humidity | <98% RH, non-condensing |
| Data Output | RS-232, Analog (0–10 V / 4–20 mA), Ethernet |
| Data Storage | Internal 20 GB HDD + 12.1" color TFT display |
| Power | 115/230 V AC, 50/60 Hz, 80 W (excl. optional external pump) |
| Dimensions (Benchtop) | 25.4 × 96.5 × 35.56 cm |
| Dimensions (Portable) | 22.2 × 48.26 × 60.9 cm |
| Weight | 27 kg |
| Compliance | Designed for field-deployable, unattended operation |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model Numbers | 907-0001, 908-0001, 911-0001 |
| Measurement Principle | Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) |
| CH₄ Range (standard) | 0.1–100 ppm |
| CH₄ Range (extended) | up to 1000 ppm or 0–10% vol |
| H₂O Range | 7000–70000 ppm (0–100% RH) |
| Precision (1σ, 1 s) | CH₄: 1 ppb, H₂O: 100 ppm |
| Precision (1σ, 100 s) | CH₄: 0.3 ppb, H₂O: 30 ppm |
| Drift (24 h, EP model) | CH₄: 0.8 ppb, H₂O: max(100 ppm, 1% of reading) |
| Accuracy (uncalibrated) | <1% (standard), <0.03% (EP) |
| Sampling Rate | 0.01–20 Hz |
| Operating Temperature | 5–45 °C (standard), 0–45 °C (EP) |
| Power | 80 W (standard), 150 W (EP) |
| Dimensions & Weight | varies by configuration (e.g., rack-mount EP: 35.6 × 48.3 × 61 cm, 40 kg) |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model | FGGA |
| Type | Off-Axis Integrated Cavity Output Spectroscopy (Off-Axis ICOS) Analyzer |
| Detection Targets | CH₄, CO₂, H₂O |
| Repeatability | CH₄ ≤ 1 ppbv, CO₂ ≤ 0.2 ppmv, H₂O ≤ 100 ppmv |
| Response Time | 0.1 s (with external DSVP pump), 25 s (with internal pump) |
| Mirror Reflectivity | >99.999% |
| Accuracy | <1% of reading |
| Measurement Ranges | CH₄: 0.1–10,000 ppmv (standard), down to 0.005 ppmv (optional) |
| CO₂ | 200–20,000 ppmv (standard), up to 20,000 ppmv (optional) |
| H₂O | 7,000–80,000 ppmv (standard), 1,500–80,000 ppmv (optional) |
| Effective Optical Path Length | ~2.5 km (typical, based on 25 cm cavity with 99.999% mirrors) |
| Data Storage | 40 GB internal SSD |
| Display | 12.1" color TFT (desktop only) |
| Sample Temperature Range | 0 °C |
| Operating Temperature | 5–40 °C |
| Operating Humidity | 0–98% RH (non-condensing) |
| Gas Inlet Fittings | 1/4", 3/8", or 1/2" Swagelok® |
| Power | 115/230 VAC, 50/60 Hz, 90 W (DC conversion supported) |
| Dimensions (Desktop) | 25 × 96 × 35 cm |
| Dimensions (Portable) | 22 × 48 × 61 cm |
| Weight | 30 kg (desktop), ~18 kg (portable) |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model | 908-0008, 912-0008 |
| Measurement Principle | Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) |
| Isotopes Measured | δ²H and δ¹⁸O in liquid water |
| Precision (High-Accuracy Mode, 1σ) | δ²H < 0.3‰, δ¹⁸O < 0.1‰ |
| Precision (High-Throughput Mode, 1σ) | δ²H < 0.6‰, δ¹⁸O < 0.2‰ |
| Sample Volume per Injection | < 1 µL (adjustable) |
| Max. Daily Injections | 1080 |
| Unknown Samples per Day | 150 (high-throughput), 30 (high-accuracy) |
| Salinity Tolerance | < 4% w/w |
| Operating Temperature | 5–45 °C |
| Sample Temperature Range | 0–50 °C |
| Output Interfaces | RS-232, Ethernet, USB |
| Power | 115/230 VAC, 50/60 Hz, 150 W |
| Dimensions | 25.4 cm (H) × 96.5 cm (W) × 35.6 cm (D) |
| Weight | 27 kg |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model | 914-0060 |
| N₂O Concentration Detection Limit | 0.2 ppb (1σ, >300 ppb N₂O) |
| δ¹⁵N, δ¹⁵Nα, δ¹⁵Nβ Precision | <1‰ (300 s integration) |
| δ¹⁷O Precision | <1‰ (300 s, N₂O >10 ppm) |
| δ¹⁸O Precision | <1‰ (1000 s) |
| N₂O Measurement Range | 0.3–100 ppm (full-spec) |
| Spectral Resolution | <1‰ for all isotopic ratios |
| N₂O Mass Range Coverage | 0–1000 ppm |
| Operating Temperature | 0–45 °C |
| Relative Humidity | 0–100% RH (non-condensing) |
| Temperature Stability | ±0.003 °C |
| Pressure Control Accuracy | ±0.001 torr |
| Power | 115/230 VAC, 50/60 Hz, 400 W |
| Dimensions | 35.6 cm (H) × 48.3 cm (W) × 114.3 cm (D) |
| Weight | 68 kg |