MARV 2Ex IR
The MARV 2Ex IR is an all-in-one extractive, isokinetic, and temperature-controlled continuous monitoring system designed for simultaneous measurement of dust concentration, moisture content, and gas composition in industrial stacks located in explosive atmospheres.
Certified for ATEX Zone 1/2 applications, the system uses a nitrogen-heated sampling probe, nitrogen-purged optical sensor module, and an integrated PLC housed in a weather-proof, powder-coated steel enclosure.
A protective nitrogen overpressure prevents the formation of explosive gas atmospheres inside the analyzer.
Measurement is based on optical forward scattering for dust detection and infrared absorption for moisture and gas composition analysis, ensuring reliable and accurate monitoring in dry and wet process conditions.
Key Features
- ATEX-compliant design for Zone 1/2 explosive atmospheres
- Simultaneous measurement of dust, moisture, and gas composition
- Isokinetic sampling under variable flow conditions
- Nitrogen-heated sampling probe for moisture vaporization
- N₂-purged optical sensor module with protective gas overpressure
- Automatic dust filter back-purge for pump protection
- Long maintenance intervals due to isolated sample stream
- PLC visualization software with local HMI (optional) and Web HMI
- Infrared and visible optical system covering 200 nm to 20,000 nm
Applications
BFG (Blast Furnace Gas)
Measurement of dust, moisture, and CO/CO₂/CH₄ concentrations before reuse of blast furnace gas in gas turbines or boilers under explosive atmosphere conditions.
- Temperature: 80°C
- Humidity: 100%
- Typical Gas Composition: [object Object]
BOF (Basic Oxygen Furnace / Linz-Donawitz)
Continuous emission monitoring of dust, moisture, and CO/CO₂ concentrations in converter flue gas within ATEX-regulated environments.
- Temperature: 70°C
- Pressure: 0.95–1.023 Bar Abs.
- Gas Velocity: 5–30 m/s
- Humidity: 100%
- Typical Gas Composition: [object Object]
