Jenway Biogas 5000 Portable Biogas Analyzer
| Origin | UK |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Biogas 5000 |
| Price | USD 6,800 (FOB UK) |
| Certification | ATEX II 2G Ex ib IIA T1 Gb, IECEx, MCERTS (under application), UKAS ISO/IEC 17025 (Accreditation No. 4533) |
| Gas Channels | CH₄, CO₂ (dual-channel NDIR), O₂, CO (H₂-compensated), H₂S (optional ranges: 0–500 / 0–5,000 / 0–10,000 ppm), NH₃, H₂ (configurable) |
| Accuracy | CH₄ & CO₂ ±0.5% vol (0–70% / 0–60%), O₂ ±1.0% vol (0–25%), CO ±2.0% FS (0–500 ppm), H₂S ±2.0% FS (0–500 ppm) |
| Response Time (T90) | CH₄/CO₂ ≤10 s, O₂ ≤20 s, CO/H₂S ≤30 s |
| Battery | Rechargeable NiMH pack, 8 h continuous operation, 3 h full charge |
| Data Storage | 10,000 sample IDs, 10,000 datasets, 10,000 event logs |
| Environmental Rating | IP65, operating temp –10 to +50 °C, RH 0–95% non-condensing |
| Dimensions | 220 × 155 × 60 mm |
| Weight | 1.5 kg |
| Pressure Range | ±500 mbar (rel.), atmospheric 500–1500 mbar (±5 mbar), vacuum limit –375 mbar |
| Flow Rate | 550 mL/min (pump), integrated well-flow probe: 0–20 L/h |
| Accessories | Removable 2.0 µm PTFE filter, optional temperature probe (–10 to +75 °C, ±0.5 °C), GPS module, Bluetooth/USB interface |
Overview
The Jenway Biogas 5000 is a field-deployable, intrinsically safe portable gas analyzer engineered for quantitative, real-time measurement of biogas and landfill gas composition under demanding environmental conditions. It employs dual-channel non-dispersive infrared (NDIR) spectroscopy for simultaneous, interference-resistant detection of methane (CH₄) and carbon dioxide (CO₂), complemented by electrochemical sensors for oxygen (O₂), carbon monoxide (CO), hydrogen sulfide (H₂S), ammonia (NH₃), and hydrogen (H₂). Its design adheres to the physical and operational constraints of on-site monitoring—whether at active landfill cells, anaerobic digestion plants, biogas upgrading facilities, or municipal waste-to-energy sites. The instrument’s certified ATEX and IECEx hazardous-area rating (II 2G Ex ib IIA T1 Gb) enables safe deployment in potentially explosive atmospheres without requiring zone-specific barriers or purge systems. All measurements are traceable to UKAS-accredited calibration protocols per ISO/IEC 17025 (Certificate No. 4533), ensuring data integrity for regulatory reporting and process optimization.
Key Features
- Dual-channel NDIR optics with temperature- and pressure-compensated algorithms for CH₄ and CO₂, delivering ±0.5% vol accuracy across 0–70% and 0–60% ranges respectively.
- H₂-compensated CO sensor technology mitigates cross-sensitivity up to 2000 ppm H₂, maintaining measurement fidelity in high-hydrogen biogas streams typical of early-stage digesters.
- Integrated sampling pump with programmable flow monitoring: detects blockage via real-time differential pressure feedback (alarm threshold at –200 mbar; auto-restart at ~–375 mbar).
- Expandable sensor configuration: users select from multiple H₂S range options (0–500, 0–5,000, or 0–10,000 ppm) and optional NH₃ or H₂ modules at time of order—no field retrofitting required.
- Robust mechanical architecture: IP65-rated enclosure constructed from impact-resistant ABS/polypropylene with overmolded elastomer grips; operable from –10 °C to +50 °C ambient.
- Onboard data governance: 10,000-sample ID registry, timestamped datasets, and event logging—including alarm triggers, calibration events, and sensor fault codes—all stored with audit-trail metadata.
Sample Compatibility & Compliance
The Biogas 5000 is validated for direct analysis of raw, unfiltered biogas streams containing particulates <2.0 µm (via replaceable PTFE membrane filter), condensable vapors (handled via heated sample line option), and variable moisture content. It meets the analytical requirements of EN 15267-3 for continuous emissions monitoring system (CEMS) performance evaluation and supports compliance with UK Environment Agency Landfill Gas Monitoring Guidance (LGMG) and EU Directive 1999/32/EC. While MCERTS certification is pending formal issuance, the device’s measurement uncertainty budget, sensor lifetime validation (O₂: ~3 years; H₂S: ~2 years), and UKAS-accredited calibration chain align with MCERTS Part 3 technical criteria. All firmware and calibration certificates are version-controlled and retainable for GLP/GMP audits.
Software & Data Management
Data export and configuration are managed via GAM (Gas Analysis Manager) software—a Windows-based desktop application supporting USB and Bluetooth 4.2 connectivity. GAM enables batch download of field datasets, spectral review of NDIR baseline stability, sensor health diagnostics (e.g., zero/span drift trends), and automated report generation compliant with ISO 14001 environmental management documentation. Raw files include embedded GPS coordinates (when enabled), barometric pressure, ambient temperature, and user-defined site metadata. The software enforces role-based access control and maintains an immutable audit trail of all configuration changes and calibration actions, satisfying FDA 21 CFR Part 11 electronic record requirements when deployed in regulated biogas-to-grid injection facilities.
Applications
- Landfill gas migration studies and perimeter monitoring using sequential multi-point sampling with geotagged location stamps.
- Performance verification of anaerobic digesters during commissioning and routine QA—tracking CH₄/CO₂ ratio shifts indicative of process imbalance or feedstock variability.
- Leak detection surveys across biogas pipeline networks, flare stacks, and storage tanks using real-time %LEL-equivalent CH₄ display and audible/visual alarms.
- Regulatory stack testing at waste-to-energy plants where simultaneous O₂ correction and CO reporting are mandated per EN 14181 QAL2 protocols.
- Academic research on microbial community dynamics, where high-temporal-resolution H₂S and NH₃ co-monitoring informs inhibition modeling.
FAQ
Is the Biogas 5000 suitable for use in Zone 1 hazardous areas?
Yes—the device carries ATEX II 2G Ex ib IIA T1 Gb certification, permitting operation in Zone 1 (gas) environments with ambient temperatures between –10 °C and +50 °C.
Can the instrument measure biogas moisture content?
No—humidity is not a built-in parameter. However, optional external chilled-mirror hygrometers or capacitive probes may be interfaced via analog output or third-party DAQ integration.
What is the recommended calibration frequency?
For regulatory applications, quarterly span calibration with certified gas standards is advised; zero calibration should be performed before each field session using certified zero air.
Does the device support remote data transmission?
Not natively—GAM software requires local PC connection. Cellular telemetry modules (e.g., LTE-M) can be added externally via RS232 or USB-to-serial adapters with custom scripting.
How is sensor cross-interference managed for CO in high-H₂ biogas?
The electrochemical CO sensor incorporates proprietary H₂ compensation circuitry, reducing effective cross-sensitivity to ≤1% of H₂ concentration—validated per IEC 60079-29-1 Annex D test methodology.
