Pressure switch 901 Prescal® EX adjustable

Pressure switch 901 Prescal® EX adjustable

Adjustable pressure switch monitoring overpressure, vacuum or differential pressure of liquid and gaseous – also aggressive – media.

The pressure switch uses a scaled adjustment knob to enable the adjustment of trip and reset pressure without the use of a screwdriver.

Brand : Beck

Description

Applications :

  • Wastewater technology
  • liquid level measurement
  • pump control
  • medical technology
  • and many more

 

Technical Data : 

  • Setting ranges:

    TypeSetting range betweenMaximum positive working pressure
    Standard/extended
    Maximum negative working pressure
    Standard/extended
    901.61 Ex5 und 20 mbar0,5/4 bar–/–1 bar
    901.62 Ex10 und 50 mbar0,5/4 bar–/–1 bar
    901.63 Ex25 und 100 mbar0,5/4 bar–/–1 bar
    901.64 Ex50 und 250 mbar1/4 bar–/–1 bar
    901.65 Ex100 und 500 mbar1/4 bar–/–1 bar
    901.66 Ex250 und 1.000 mbar10 bar–1 bar
    901.67 Ex500 und 1.500 mbar10 bar–1 bar
    901.68 Ex1.000 und 3.000 mbar10 bar–1 bar
    901.91 Ex1,0 und 6,0 bar25 bar–1 bar
    901.92 Ex4,0 und 9,0 bar25 bar–1 bar
    901.93 Ex7,0 und 12,0 bar25 bar–1 bar
    901.71 Ex– 5 und – 20 mbar0,5/4 bar–1 bar
    901.72 Ex– 10 und – 50 mbar0,5/4 bar–1 bar
    901.73 Ex– 25 und – 100 mbar0,5/4 bar–1 bar
    901.74 Ex– 50 und – 125 mbar0,5/4 bar–1 bar
    901.75 Ex– 75 und – 200 mbar1/4 bar–1 bar
    901.76 Ex– 100 und – 300 mbar1/4 bar–1 bar
    901.77 Ex– 200 und – 500 mbar1/4 bar–1 bar
    901.78 Ex– 300 und – 700 mbar1/4 bar–1 bar
    901.81 Ex5 und 20 mbar (Differenzdruck)100 mbar–100 mbar
    901.82 Ex10 und 50 mbar (Differenzdruck)100 mbar–100 mbar

 

  • Temperature range:
    Temperature of media and ambient temperature from -20°C to 85°C
    Storage temperature: -40° C bis +85° C

 

  • Diaphragm material:
    Depending on media NBR, Silicone, FKM (Viton®), EPDM. For 901.8x Silicone, others upon request.

 

  • Pressure connection:
    Material: PA, PVDF, PPS, Brass, Stainless steel
    Hose nipple: 5,0mm, 6,5mm, 10,0mm
    Thread: M10x1, G1/8, G1/4, G1/2

 

  • Electrical rating:
    24 VDC/100 mA
    30 VDC/45 mA

 

  • Electrical connection:
    AMP flat plug 6.3 x 0.8 mm according to DIN 46244 or push-on screw terminals

 

  • Protection class:
    IP 54 (with cover 6371)

 

  • Arrangement of contacts:

Data Sheet

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