EXTRACTIVE GAS ANALYZER
BeamCell™
Real-time extractive gas analysis delivering high-precision data rapidly, allowing multi-point sampling and analysis.
The BM-H-3 BeamCell is a state-of-the-art turnkey solution utilizing Tunable Diode Laser Absorption Spectroscopy
(TDLAS) for precise analysis of extracted/sampled gas. Equipped with push-in gas connectors (G1/8) adapted for
6-mm or 8-mm gas tubing, it ensures seamless integration.
Effortless integration: By extracting gas in a parallel flow for analysis within the controlled environment of the
BM-H-3 BeamCell, very high measurement accuracy is achieved. The analyzer is easily integrated into industrial
environments, with standard communication interfaces compatible with most PLC systems.
Unique compact form factor: The compact design of the BM-H-3 BeamCell makes it suitable for both new
installations and retrofits into existing infrastructure, offering flexibility and ease of integration.
High-speed sampling: The fast response time of the BM-H-3 BeamCell provides true real-time analysis data. The
speed of the analyzer also allows for sampling of multiple points in sequence within a few seconds.
Advanced TDLAS technology: By leveraging the robust and proven TDLAS technology, the BM-H-3 BeamCell
delivers rapid (100 µs) and highly sensitive (ppb-level) gas analysis. The technology is inherently self-referencing and
calibration-free, ensuring minimal maintenance.
Versatile gas analysis: The analyzer is capable of detecting a wide range of gases commonly found in industrial and
laboratory settings, including greenhouse gases such as methane (CH₄). Other commonly analyzed gases include
O₂, CO₂, CO, NH₃, HF, H₂S, H₂S, H₂O and HCl.
Energy efficient design: The highly energy-efficient design allows the BM-H-3 BeamCell to be integrated in portable
systems capable of running on battery power for hours in mobile analysis applications.
Durable design: The analyzer is designed for heavy industrial use and is constructed to withstand harsh and
corrosive gases. The flow chamber in the BM-H-3 BeamCell is capable of withstanding harsh chemicals such as
sulfuric acid, ensuring long-term reliability ain demanding applications.
• Turnkey extractive gas analyzer
• Absolute gas quantification
• Calibration-free gas sensing
• Acid resistant materials in flow-chamber
• Digital and analog data interfaces
• IP67 grade mechanics
• Easy service and maintenance
Examples of applications:
Extractive Gas Analysis
- Laboratory Gas Sensing
- Industrial Process Monitoring
- Explosion Risk Management
- Mobile Analysis in Harsh Environments
| Gas | Analyzer precision (ppm)*) |
| O₂ | 30 |
| HF | 0.05 |
| CO | 1 |
| CO₂ | 2.5 |
| CH₄ | 1 |
| H₂S | 1.5 |
| NH₃ | 1 |
| H₂O | 1 |
*) Under standard test conditions: L = 0.2 m, t = 1 s, P = 1 atm, T = 300 K, largest of 1% relative and specified precision.
| Parameter | Symbol | Min | Typical | Max |
| Ramp period | TR | 100 µs | 120 µs | 240 µs |
| Temperature set stability | 0.1 mK | |||
| Laser current | IR | 0 mA | 400 mA | |
| Data sampling channels | 1 | |||
| Data sampling resolution | 24 bits | |||
| Data sampling noise (V) | 0.1 µVrms* | |||
| Data sampling noise (ADU) | 0.1 * | |||
| Low-light limit (10 s) | 1 nW | |||
| Gas connector threading | G1/8 | |||
| Gas tube dimension | 6 mm / 8 mm | |||
| *1 s sampling time | ||||
| Interfaces | ||||
| Interface | Model | Mounted | Quantity | |
| USB | 53398-0471 Communication, Data | Yes | 2 | |
| USB | Mini USB, Firmware upgrade | Yes | 2 | |
| RS-485 | 4 wire Full Duplex – protected | Yes | 1 | |
| RS-485 | 4 wire Full Duplex – service data | Yes | 1 | |
| RS-485 | Half Duplex | Yes | 1 | |
| Trig In | 4-30 V | Yes | 2 | |
| IO | 0-12 V | Yes | 2 | |
| IO Supply | 12 V | Yes | 1 | |
| Relay Output | G6K-2F-5DC, NC/NO | Yes | 2 | |
| 4-20 mA | Passive / Active | Expansion | 2 | |
| Expansion connector | 2C, SPI, GPIO, ADC, Loop Relay, Sync, GND, PWM, UART, Relay, IO, 5 V, 2.5 V, 12 V, PWR_IN, 4-20 mA, 0-10 V | Yes | 3 | |
| Sync signals | Daisy chain configuration | Yes | 2 | |
| Master clk in / out | 73412-0110 | Yes | 2 | |
| Electrical Characteristics | ||||
| Parameter | Symbol | Min | Typical | Max |
| Supply voltage | Vin | 15 VDC* | 24 VDC | 32 VDC |
| Power consumption | 5 W** | |||
| TEC driver power | 0 W | 3.56 W | ||
| Comm. link length | 30 m | |||
| Startup-time (ambient) | tsu | 5 s | ||
| *Degraded noise performance if Vin < 15 V | **50 mA laser diode | ||||
| Other | ||||
| Parameter | Symbol | Min | Typical | Max |
| Operating temperature | Top | -10 °C | 50 °C | |
| Humidity (non-condensing) | 40% @ 50 °C / 80% @ 30 °C | |||
| IP classification | IP67 | |||
| Infrared laser | Laser Class I | |||
| CE-marked EU directives | 2014/35/EU, 2012/19/EU, 2011/65/EU, EN61000-6-2:2005, EN61000-6-2:2019, EN61000-6-4:2007, EN61000-6-4:2019 | |||
Download BeamCell™ Datasheet
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