EXO Dust Monitor for Wet Gases
EXO is an extractive, isokinetic, and temperature-controlled continuous particulate monitor designed for wet industrial processes. It is the ideal solution for emission monitoring in challenging wet conditions, such as downstream of wet scrubbers or in condensing environments.
– System Components: Includes a heated sampling probe, an optical XO sensor module, an integrated touchscreen GUI, and a weatherproof powder-coated steel enclosure utilizing an ejector vacuum system to draw flue gas samples.
– Working Principle (Optical Forward Scattering): Extracted gas samples are heated to vaporize moisture. Particles pass through an optical measurement chamber where LED light is scattered, and a detector measures particle concentration based on the scattered light.
– Output & Calibration: Displays measurement results in $mg/m^3$ or 4-20 mA values. The device requires calibration to specific process conditions using a standard reference method after installation.
EXO is often used after Wet scrubbers, such as
– Spray Towers
– Tray towers
– Packed bed & ionized packed bed
– Fiber Bed scrubber
– Venturi scrubber
- Features
- Specification
- Download
– Isokinetic sampling
– Continuous Dust levels as low as 0,1 mg/m?
– Sample stream isolated with air curtain to keep the optics clean -> long maintenance interval
– Accurate linear measurement for all kinds of dust
– Color touch screen for easy parametriz
Measurement: Total Dust, Optical LED Based, Extractive
Particle Size: From 0.01 µm
Detection limit: From 0.1 mg/m³
Measurement range: 0-500 mg/m³ (user changeable)
Isokinetic sampling: Achievable by parameter adjustment (option)
Power supply: 400V/16A 3-Phase
Power consumption: Total: max 3.7 kW, heaters max 1.5 kW, blower max. ,2 kW
Purge air supply: Clean, dry instrument air ~30 l/min or separate purge air blower
Output Signals:
- 2×8 digital output, 24 VDC, 0.5 A
- Two 4-20 mA output
- Ethernet TCP/IP
- USB for datalogging
Signal Averaging Time: 1 sec, 30 sec or user selectable (max 3600 sec)
Stack process conditions: Flue gas below dew point with water droplets
Ambient Temperature: -20…+50°C
Ambient humidity: Max 95 % RH (non-condensing)
Flue Gas Velocity: 5-25 m/s
Temperature: Max 300 °C (572 °F)
Wetted parts: Probe:stainless steel (316L), optionally Hastelloy C276
Internal piping: Stainless steel (316L)
Calibration: SRM (standard reference method), gravimetric sampling
Enclosure: Powder coated steel, IP54
Size: W: 800 mm, H: 400 mm, D: 300 mm
Weight: Total weight fully assembled ~120 kg, depending on auxiliaries
Ordering information: PC900810









