ENVEA - Model Paddy -Particle Size Monitoring

• Supply a trending information of pulverization
• Measures changes in particle size for instance to detect screen breaks
• Paddy is insensitive against contaminations and works without bypass
• Uses state-of-the-art microwave technology in combination with intelligent evaluation software
• Can be installed in free-fall pipes downstream from screening or grinding systems
• Fast detection of coarse particles, for as little as 10 % of the mass flow

• Cement
• Food
• Wood

• Cement
• Food
• Wood

• Material to measure: Dust, powders or granulates, not agglomerated
• Process pressure: 1 bar, optional 10 bar
• Process temperature: Max. 80°C
• Mounting: Via process connection, after baffle plate or Venturi
• Type of Conveying: Pneumatic leanphase, vertical freefall
• ATEX rating: Category 1/2
• Output: 4…20mA Trend, Modbus, Profibus

• Fast detection of coarse particles, for as little as 10 % of the mass flow
• Uses state-of-the-art microwave technology in combination with intelligent evaluation software
• Can be installed in free-fall pipes downstream from screening or grinding systems
• Possibility of trend showing for grain size
• Special freefall section include baffle plates needed
• Consists of two sensors (measurement and reference)

Sensor Technical Data

• Measurement principle: Microwave
• Measurement range: Particle sizes up to 10 mm –
• larger sizes on request
• Housing material: Stainless steel 1.4571
• Protection type: IP 65, dust explosion zone 20 or
• gas explosion zone 1 (optional)
• Ambient operating temperature: Sensor tip: -20 … +80 °C
• Optional: -20 … +200 °C
• Sensor element: 0 … +60 °C
• Max. operating pressure: 1 bar
• Operating frequency: K band 24.125 GHz, ±100 MHz
• Transmission power: Max. 5 mW
• Weight: 1.3 kg
• Dimensions: Ø 60, Ø 20, L 271 mm

At the selected installation site two sensor sockets are welded at the required distance. Thereafter, a 20 mm borehole is drilled through sensor socket and through the tube wall. The sensor will be adapted to the wall thickness, inserted and fixed with the help of the union nut.