SensorEurope NGM Infrared Gas Sensor Module
| Brand | Sensors |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | NGM |
| Price Range | USD 2,600 – 3,900 |
Overview
The SensorEurope NGM Infrared Gas Sensor Module is a high-performance, OEM-optimized NDIR (Non-Dispersive Infrared) gas detection platform engineered for precision, long-term stability, and seamless system integration in environmental monitoring, industrial safety, and process control applications. Built upon dual-beam optical architecture, the NGM compensates for source aging, thermal drift, and optical contamination—enabling robust baseline stability over extended operational periods without frequent recalibration. Each module is configured for single-gas, single-range measurement of CO, CO₂, CH₄, or SF₆, with selectable full-scale ranges spanning from sub-ppm (e.g., 0–2000 ppm CO₂) to 100% vol. (e.g., 0–100% CH₄ in N₂). The core sensing principle relies on Beer–Lambert absorption spectroscopy at gas-specific mid-infrared wavelengths, with reference and measurement beams simultaneously sampled by matched photodetectors to eliminate common-mode intensity fluctuations.
Key Features
- Dual-beam NDIR optical design ensuring <±2% FS long-term stability over 12 months (lab conditions), minimizing zero and span drift induced by LED aging or temperature gradients
- Integrated temperature and pressure compensation algorithms compliant with ISO 12039 and ASTM D6522 for traceable gas concentration reporting under variable ambient conditions
- T90 response time of 3–45 seconds—dependent on target gas, flow rate (0.1–0.75 L/min), and sample line configuration—validated per EN 45544-1 for workplace exposure monitoring
- Linearized analog output (4–20 mA, 0–20 mA) with ≤±1% FS linearity error; RS232 and USB digital interfaces support firmware updates, real-time diagnostics, and remote calibration
- Compact PCB form factor (160 × 50 × 45 mm, ≤800 g) with 3-mm OD push-fit gas inlet/outlet ports—designed for DIN-rail mounting, embedded controller integration, or portable analyzer chassis
- Low-power operation (max. 3 W @ 12 VDC, compatible with 10–42 VDC input) and rapid startup (<10 s preheat, full specification compliance within 30 min)
Sample Compatibility & Compliance
The NGM module is validated for use with dry, non-corrosive gas matrices including N₂, air, and synthetic background gases. It is not rated for H₂S, Cl₂, NH₃, or high-humidity (>95% RH non-condensing) or particulate-laden streams without external filtration or conditioning. All configurations comply with CE marking requirements under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD). For safety-critical deployments (e.g., confined space entry, leak detection), the module supports integration into SIL 2–certified systems per IEC 61508 when paired with appropriate redundancy and voting logic. Calibration traceability follows ISO/IEC 17025 guidelines via factory-certified span and zero gas standards (NIST-traceable where applicable).
Software & Data Management
Configuration, diagnostics, and calibration are managed via SensorEurope’s NGM Control Suite—a Windows-based application supporting USB and RS232 communication. The software enables zero/span adjustment via onboard push-button or command protocol, real-time signal logging (CSV export), and diagnostic flagging (e.g., low flow, temperature out-of-spec, photodiode saturation). Audit trails include timestamped calibration events, firmware version history, and sensor health metrics—supporting GLP/GMP documentation requirements. Digital outputs adhere to Modbus RTU (RS232) and CDC ACM (USB) protocols for compatibility with SCADA, PLC, and cloud telemetry platforms (e.g., MQTT over Ethernet gateways).
Applications
- Continuous emissions monitoring (CEMS) subsystems for combustion exhaust (CO, CO₂)
- Biogas upgrading plants (CH₄ purity verification, CO₂ removal efficiency)
- SF₆ leak detection in high-voltage switchgear maintenance and GIS asset management
- OEM integration into portable air quality analyzers, HVAC demand-controlled ventilation controllers, and landfill gas monitoring stations
- Research-grade gas blending verification and calibration gas generator validation
FAQ
Can the NGM module measure multiple gases simultaneously?
No. Each NGM unit is factory-configured for one specific gas and one full-scale range. Multi-gas capability requires parallel modules or custom multi-channel housings.
Is field recalibration possible without specialized equipment?
Yes—zero and span calibration can be performed using certified calibration gases and the onboard button interface or NGM Control Suite, eliminating need for service technician intervention.
What is the recommended maintenance interval?
Under typical indoor operating conditions (0–40°C, clean air), no scheduled maintenance is required beyond annual functional verification with certified test gas per ISO 14644-3 Annex B.
Does the module meet explosion-proof requirements?
The NGM itself is non-incendive (Class I, Division 2 / ATEX Zone 2 compatible when installed in an approved enclosure per IEC 60079-15). It is not intrinsically safe or flameproof as supplied.
How does pressure compensation function across varying altitudes?
The integrated absolute pressure sensor (800–1200 mbar range) feeds real-time data to the on-board microcontroller, applying polynomial correction to absorbance calculations—ensuring accuracy up to ~2000 m elevation without manual reconfiguration.
