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The rotary paddle level indicator DF28 is used in most bulk solids for full- or demand-detection within silos and bins. The individual sensor configuration with a large number of options and a lot of accessories enables an accurate adaptation to any specific application.

 

Product Features

  • protection tube against high lateral loads up to 6.000 mm maximum length
  • optional bearing and seal ring at the end of the tube avoids dust deposit in the tube and enables any fitting position
  • unaffected by pressure, temperature, dust, caking, and conductivity of material
  • to be used in all areas with potentially explosive atmospheres as well
  • versatile and universally applicable
  • fantastic price-performance-ratio
  • high reliability
  • continuous operation without maintenance
  • easy installation

 

Further information on ATEX

     

Supply voltage
230, 115, 48, 24 V AC / 48, 24, 12 V DC
 
Signal contact
1mA / 4V DC … 2A / 250V AC
change-over contact, potential-free
Bulk goods temperature
-40 °C … +500 °C
up to +1200 °C on request
Ambient temperature
-40 °C … +70 °C
 
Process pressure
-1 bar … 25 bar
 
ATEX approval
DustEx and GasEx
 
Process connection
Threats, flange and more
Aluminium or stainless steel
Material
Housing IP66
Aluminium or stainless steel
 
Extension (shaft and measuring blade)
Stainless steel
 
Protection tube
Stainless steel
 
Sealing ring
NBR, VITON, PTFE, Graphite
Mounting position
vertical
 
Maintenance
none
 
Technical data

The DF28 is a level limit switch with protection tube for bulk goods such as powder, granulate, fine and coarse-grained. In a lot of applications these DF28 indicates minimal or maximal fill levels reliably and precisely. Therefore it is used in many different industries:

 

Applications

Our level control indicators are named in business magazins as paddle switches, rotary paddel switches, point measurement devices, level sensor, level switch or level control.