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| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7810 |
| Measurement Principle | Optical Feedback–Cavity Enhanced Absorption Spectroscopy (OF-CEAS) |
| Gases Measured | CH₄, CO₂, H₂O |
| Detection Limits | Sub-ppb CH₄, <0.1 ppm CO₂, <0.01% RH H₂O |
| Power Requirement | 12–24 V DC (LI-7810) |
| Operating Temperature | –25 to 45 °C |
| Communication | Ethernet, Wi-Fi, Bluetooth (8200-01S), USB, RS-232 |
| Data Output | Real-time flux calculations (CH₄ & CO₂), soil temperature & moisture (via optional sensors), diagnostic logs |
| Compliance | Designed for GLP-compliant field deployment |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-8250 |
| Gas Analyzers Supported | LI-7810 (CH₄/CO₂/H₂O) or LI-870 (CO₂/H₂O) |
| Max Channels | 36 (via 8250-01 expansion modules) |
| Chamber Types | 8200-104 (opaque) or 8200-104C (transparent) |
| Data Storage | 8 GB internal |
| Operating Temperature | –20 to 45 °C |
| Humidity Range | 0–95% RH (non-condensing) |
| Enclosure Rating | IEC IP55 |
| Power Input | 10–30 VDC |
| Wi-Fi | 2.4 GHz, 802.11 a/b/g/n/ac |
| GPS Accuracy | 2.5 m CEP |
| Max Chamber Radius | 15.0 m (single line), 30.0 m (with 8250-01) |
| Pressure Sensor Range | 20–110 kPa (±0.4 kPa accuracy) |
| Flow Rate to Chambers | ~2–3 L/min |
| Software | SoilFluxPRO™ |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7815 |
| Measurement Principle | Optical Feedback–Cavity Enhanced Absorption Spectroscopy (OF-CEAS) |
| Measurement Frequency | 1 Hz |
| Cavity Volume | 6.41 cm³ |
| Sample Flow Rate | 250 sccm (standard mL/min) |
| CO₂ Range | 0–10,000 µmol/mol |
| CO₂ Precision (1σ) | 0.04 µmol/mol @ 400 µmol/mol (5-s average), 0.10 µmol/mol @ 400 µmol/mol (1-s average) |
| CO₂ Drift | < 0.2 µmol/mol per 24 h |
| H₂O Range | 0–60,000 µmol/mol |
| H₂O Precision (1σ) | 20 µmol/mol @ 10,000 µmol/mol (5-s average), 45 µmol/mol @ 10,000 µmol/mol (1-s average) |
| Response Time (T₁₀–T₉₀) | ≤2 s for CO₂ (0 → 400 µmol/mol) |
| Operating Temperature | −25 °C to +45 °C (non-direct-sunlight ambient) |
| Operating Humidity | 0–85 % RH (non-condensing, ambient) |
| sample line | 0–99.9 % RH (non-condensing) |
| Pressure Range | 70–110 kPa (high-altitude mode: 50–110 kPa) |
| Power Consumption | 22 W @ 25 °C (steady state) |
| AC Input | 100–240 VAC, 50–60 Hz |
| Battery Runtime | ~8 h with two standard batteries |
| Weight | 10.5 kg (including battery) |
| Dimensions (L×H×W) | 51 × 33 × 18 cm |
| Connectivity | Ethernet and Wi-Fi (2.4 GHz, IEEE 802.11 a/b/g/n/ac) |
| Onboard Data Storage | Up to 3 months of 1-Hz data |
| Internal Web Server | Yes (accessible via browser over wired or wireless network) |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | 8200-01 |
| Chamber Diameter | 20 cm |
| Soil Area | 317.8 cm² |
| Chamber Volume | 4244.1 cm³ |
| Air Temperature Sensor Range | −20 to 70 °C, Accuracy: ±0.5 °C (0–70 °C) |
| Pressure Sensor Range | 50–110 kPa, Accuracy: ±0.4 kPa, Resolution: 1.5 Pa (typ.) |
| Operating Temperature | −20 to 50 °C |
| Power Supply | 10–17 VDC |
| Battery | 4S Li-ion, 98 Wh, built-in protection |
| Battery Life | 34 h (standalone), 20 h (with LI-870 CO₂/H₂O analyzer) |
| Soil Thermocouple Port | compatible with 6000-09TC, cable length: 1.2 or 2 m |
| Weight | 4.3 kg (incl. battery) |
| Onboard Memory | 8 GB (OS + data) |
| GPS Accuracy | 2.5 m CEP |
| Wi-Fi | 2.4 GHz, IEEE 802.11a/b/g/n/ac |
| SDI-12 Interface | for Stevens HydraProbe (optional) |
| Connectivity | USB-A (LI-870), USB-B (non-LI-COR analyzers), RJ-45 Ethernet (LI-COR trace gas analyzers), USB-A (external Wi-Fi adapter) |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-870 |
| CO₂ Range | 0–20,000 µmol/mol |
| H₂O Range | 0–60 mmol/mol |
| CO₂ & H₂O Accuracy | ±1.5% of reading |
| Measurement Frequency | 1 Hz |
| Dimensions (Analyzer) | 28.4 × 27.9 × 12.4 cm |
| Weight (Analyzer) | 2.31 kg |
| Operating Temperature | −20 to +45 °C |
| Relative Humidity | 0–95% RH (non-condensing) |
| Pressure Range | 50–110 kPa |
| Flow Rate | 0.75 L/min |
| Power Input | 10–17 VDC, max 2 A |
| Battery Life | Up to 20 h (with two batteries) |
| Measurement Principle | NDIR (Non-Dispersive Infrared) |
| Chamber | 8200-01S Smart Chamber (integrated GPS, Wi-Fi, SoilFluxPro™ software, pressure-balanced venting, bowl-shaped design, active air mixing) |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-8100A |
| Status | Discontinued (Replaced by LI-870 Portable Soil CO₂ Flux System) |
| Regulatory Compliance | ASTM D6573, ISO 16634-2, USDA-NRCS Soil Gas Flux Protocols |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-7820 |
| Measurement Principle | Off-axis Cavity-Enhanced Absorption Spectroscopy (OF-CEAS) |
| N₂O Range | 0–100 ppm |
| N₂O Precision (1σ) | 0.05 ppb @ 330 ppb (60-s avg) |
| N₂O Response Time (T₁₀–T₉₀) | ≤2 s |
| H₂O Range | 0–60,000 ppm |
| H₂O Precision (1σ) | 5 ppm @ 10,000 ppm (60-s avg) |
| Measurement Frequency | 1 Hz |
| Optical Cavity Volume | 6.41 cm³ |
| Sample Flow Rate | 250 sccm (standard) |
| Operating Temperature | –25 to 45 °C |
| Operating Humidity | 0–85% RH (non-condensing, no direct solar exposure) |
| Sampling Line Humidity Tolerance | 0–99.9% RH (non-condensing) |
| Pressure Range | 70–110 kPa (extended mode: 50–110 kPa) |
| Power Consumption | 22 W (steady-state, 25 °C) |
| Battery Runtime | ~8 h (dual battery configuration) |
| Weight | 10.5 kg (incl. batteries) |
| Dimensions | 51 × 33 × 18 cm (L×W×H) |
| Connectivity | Ethernet, Wi-Fi (2.4 GHz, 802.11 a/b/g/n/ac) |
| Compliance | Designed for field-deployable GLP-aligned workflows |
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | RESPIROMETRIC System 6 |
| Sensor Type | Electronic pressure sensor (mercury-free) |
| Pressure Range | 500–2000 hPa |
| Display | 4-digit LED |
| Stirring Control | 6-digit programmable stirrer with speed lock |
| Power | 2 W |
| Sensor Dimensions | 50 × 70 × 70 mm |
| Battery | CR2430 |
| Ingress Protection | IP54 per EN 60529 |
| Safety Compliance | IEC/EN 61010-1 |
| Test Vessel Capacity | 1000 mL |
| Data Acquisition Interval | 10 min – 48 h |
| Test Duration | 1–180 days |
| Databox™ Capacity | up to 48 sensors (8 systems × 6 sensors) |
| Connectivity | USB (RESPIROSoft™) or optional Wi-Fi (Ermes™ Cloud Platform) |
| Data Storage | Local (sensor), PC (RESPIROSoft™), or cloud (Ermes™) |
| Optional Module | Ermes™ Cloud Platform for remote monitoring, multi-device access (PC/tablet/smartphone), real-time alerts (in-app/email), and collaborative reporting |
| Brand | LI-COR |
|---|---|
| Origin | USA |
| Model | LI-8150 |
| Dimensions (L×W×H) | 40.6 × 57.2 × 21.1 cm |
| Enclosure Rating | IP55 |
| Weight | 9.4 kg (8-channel), 11.2 kg (16-channel) |
| Operating Temperature | −20 to +45 °C |
| Relative Humidity Range | 0–95% RH (non-condensing) |
| Max. Radius from Multiplexer to Chamber | 15.0 m |
| Gas Flow Rate (to/from chamber) | 3.0 L/min |
| Inter-unit Flow (LI-8150 ↔ LI-8100A) | 2.0 L/min |
| Power Input | 10.5–14.5 V DC |
| Soil Temperature Sensor Accuracy | ±1.0 °C (−20 to +50 °C) |
| Power Delivery | Supplies regulated power to connected LI-8100A analyzer |
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