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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:

Type Setting range between Maximum positive working pressure
Standard/extended
Maximum negative working pressure
Standard/extended
901.61 Ex 5 und 20 mbar 0,5/4 bar –/–1 bar
901.62 Ex 10 und 50 mbar 0,5/4 bar –/–1 bar
901.63 Ex 25 und 100 mbar 0,5/4 bar –/–1 bar
901.64 Ex 50 und 250 mbar 1/4 bar –/–1 bar
901.65 Ex 100 und 500 mbar 1/4 bar –/–1 bar
901.66 Ex 250 und 1.000 mbar 10 bar –1 bar
901.67 Ex 500 und 1.500 mbar 10 bar –1 bar
901.68 Ex 1.000 und 3.000 mbar 10 bar –1 bar
901.91 Ex 1,0 und 6,0 bar 25 bar –1 bar
901.92 Ex 4,0 und 9,0 bar 25 bar –1 bar
901.93 Ex 7,0 und 12,0 bar 25 bar –1 bar
901.71 Ex – 5 und – 20 mbar 0,5/4 bar –1 bar
901.72 Ex – 10 und – 50 mbar 0,5/4 bar –1 bar
901.73 Ex – 25 und – 100 mbar 0,5/4 bar –1 bar
901.74 Ex – 50 und – 125 mbar 0,5/4 bar –1 bar
901.75 Ex – 75 und – 200 mbar 1/4 bar –1 bar
901.76 Ex – 100 und – 300 mbar 1/4 bar –1 bar
901.77 Ex – 200 und – 500 mbar 1/4 bar –1 bar
901.78 Ex – 300 und – 700 mbar 1/4 bar –1 bar
901.81 Ex 5 und 20 mbar (Differenzdruck) 100 mbar –100 mbar
901.82 Ex 10 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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