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| Brand | Geotech (UK) |
|---|---|
| Origin | USA |
| Model | BIOGAS 3000 |
| Configuration | Online Multicomponent Gas Analyzer |
| Measurement Principle | Dual-Channel NDIR (CH₄, CO₂), Electrochemical (O₂, H₂S, CO, H₂) |
| Response Time (T90) | ≤10 s (CH₄, CO₂), ≤20 s (O₂), ≤30–40 s (H₂S, CO, H₂) |
| Repeatability | ±0.5% vol (CH₄/CO₂, 0–70%), ±1% vol (O₂), ±1.5–5% FS (H₂S/CO/H₂) |
| Operating Temperature | 0–50 °C (standard), –20–50 °C (with optional heater) |
| Sampling Points | 1–4 independent channels |
| IP Rating | IP65 |
| Power Supply | 110–230 VAC, 50/60 Hz, max. 155 W |
| Output | 4–20 mA (6 configurable channels), Modbus RTU (RS-485), optional PROFIBUS/PROFINET/Ethernet |
| Certifications | ATEX / IECEx II 3 G Ex nA nC IIA T1 Gc, UKAS ISO/IEC 17025 calibration certificate (No. 4533), BS EN 61010-1:2010, BS EN 50270:2006 |
| Brand | ONUEE |
|---|---|
| Origin | France |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | FLR9 |
| Portability | Portable |
| Response Time | <10 s |
| Repeatability | ±1% of span |
| Detection Capability | >500 organic and inorganic compounds (VOCs and inorganics) |
| Measurement Principle | Tunable Diode Laser Absorption Spectroscopy (TDLAS) coupled with Photoacoustic Detection (PAD) |
| Detection Range | ppb to % (gas-phase) |
| LOD | 1 ppb (direct measurement, no pre-concentration required) |
| Linearity | R² > 0.99 |
| Measurement Frequency | Up to 1 Hz |
| Operating Temperature | 10–35 °C |
| Max Sample Temperature | 50 °C |
| Humidity | ≤95% RH (non-condensing) |
| Enclosure Rating | Cabinet: IP20 |
| Carry Case | IP54 |
| Power Supply | 24 V DC / 3.5 A |
| Typical Power Consumption | 40 W |
| Mounting Options | 6-U rack cabinet, wheeled transport case, optional ATEX/IECEx-certified explosion-proof housing |
| Dimensions (Cabinet) | 524 × 448 × 260 mm |
| Dimensions (Carry Case) | 621 × 520 × 422 mm |
| Weight (Cabinet) | 17–19 kg |
| Weight (Carry Case) | 29–31 kg |
| Sampling Method | Extractive (process or ambient air) |
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