Particle size monitoring

Paddy

Paddy has been developed to supply a trending information of pulverization. It measures changes in particle size for instance to detect screen breaks. Paddy is insensitive against contaminations and works without a bypass.

  • 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
Technical Specifications
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
Transmitter Technical Data
Transmitter (DIN Rail) Transmitter (field housing)
Power supply 24 V DC ±10 % 110 / 230 V AC 50 Hz
(optional 24 V DC)
Power consumption 20 W / 24 VA
Protection type IP 40 to EN 60 529 IP 65 to EN 60 529/10.91
Ambient operating temperature -10 … +45 °C
Dimensions (W x H x D) 23 x 90 x 118 mm 258 x 237 x 174 mm
Weight Approx. 172 g Approx. 2.5 kg
Connection terminals cable
cross-section
0.2-2.5 mm2 [AWG 24-14]
Current output 1 x 4 … 20 mA (0 … 20 mA),
load < 500 Ω
3 x 4 … 20 mA (0 … 20 mA),
load < 500 Ω
Interface RS 485 (ModBus RTU) / USB
Pulse output Open collector – max. 30 V, 20 mA
Relay contact Max. rated load:
250 V AC
Max. peak current:
6 A
Max. rated load 230 V AC:
250 VA
Max. breaking capacity DC1:
3/110/220 V: 3/0.35/0.2 A
Min. switching load:
500 mW (10 V / 5 mA)
Data backup Flash memory
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. paddy particle size monitoring process powders paddy particle size monitoring process powders

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