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The PF is a full indicator for powdery, granulated, and grainy bulk goods and preferred for mechanically filled silos and containers. The simple design enables a reliable and very price worth level indication.

 

Product features

  • very good price-performance-ratio
  • use in dust and gas explosive hazardous areas possible
  • high reliability
  • maintenance-free continuous operation
  • easy installation
  • no supply voltage necessary
  • innovative protection against buckling

 

Further information on ATEX

Material
Housing IP66
Aluminium
 
Folding bellows
NBR
 
Bend protection
Stainless steel
 
Rod and cone
Aluminium or stainless steel
ATEX-Approval
DustEx
ATEX II 1/2D Ex ta/tb IIIC T80°C
 
DustEx and GasEx
ATEX II 1/2D Ex ta/tb IIIC T80°C and II 2G Ex ib IIB T6
Process pressure
-50 mbar ...
50 mbar
Overpressure safety
up to 0.5 bar
 
Ambient temperature
-20 °C ... +70
°C
Bulk goods temperature
-25 °C ... +80
°C
Signal contact
potential-free
change-over contact
For most applications including potentially dust explosive atmospheres:
 
 
> Switching voltage
24V…250V AC
or 12V...125V DC
 
> Switching capacity
4A / 250V AC
 
For potentially gas explosive atmospheres:
 
 
> Switching voltage
Ui < 30V
(intrinsic safe)
 
> Switiching capacity
Ii < 0,1A
(intrinsic safe)
 
Mounting position
vertical
 
Maintenance
none
 
Technical data

 

The PF is an inexpensive and universal useable pendulum level limit switch for powdery, granulated, and grainy bulk goods. The PF indicates the maximum level reliable and accurate without any supply voltage. Therefore this measuring device is used in many industries:

 

Applications