OPEN-PATH GAS ANALYZER
BeamStack™
Gas analysis with excellent precision directly at the source, across gas streams, or through open air paths.
The BM-H-3 BeamStack is a state-of-the-art turnkey solution utilizing Tunable Diode Laser Absorption Spectroscopy (TDLAS) for precise gas analysis.
Effortless integration: Engineered for seamless integration, the analyzer is ideal for both industrial environments with PLC systems as well as research laboratories. It facilitates easy export and visualization of raw and processed data for post-processing in third-party tools.
Advanced TDLAS technology: By leveraging the robust and proven TDLAS technology, the BM-H-3 BeamStack
delivers rapid (100 µs) and highly sensitive (ppb-level) trace gas analysis. This 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, N₂O, NH₃, HF, H₂S, H₂O and HCl.
Energy efficient design: The highly energy-efficient design allows the BM-H-3 BeamStack to operate for hours on batteries, making it possible to deploy for mobile analysis applications without external power sources.
Durability and robustness: Designed for heavy industrial use, the calibration-free gas analyzer system is exceptionally durable and robust, capable of withstanding harsh environments.
• Turnkey cross-stack gas analyzer
• Absolute gas quantification
• Calibration-free gas analysis
• Analyze trace gases
• Digital and analog data interfaces
• IP67 grade mechanics
• Not disturbed by other gases (no cross-talk)
Examples of applications:
- High-Sensitivity Gas Analysis
- Industrial Emissions Monitoring
- Calibration-Free Gas Detection
- Greenhouse Gas Measurement
- Portable Gas Analyzer for Remote Locations
| Examples of gases | |
| Gas | Analysis precision (ppm)*) |
| O₂ | 6 |
| HF | 0.01 |
| CO | 0.2 |
| CO₂ | 0.5 |
| CH₄ | 0.2 |
| H₂S | 0.3 |
| NH₃ | 0.2 |
| H₂O | 0.2 |
| *) Under standard test conditions: L = 1 m, t = 1 s, P = 1 atm, T = 300 K, largest of 1% relative and specified precision | |
Spectroscopy Characteristics | ||||
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 |
|
*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 | I2C, 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 |
Comm. link speed |
|
|
| 3 Mbit/s |
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 BeamStack™ Datasheet
Product Images
