Pressure Switch – Beck 901 Prescal EX Series

Features

  • Life
    Mechanically more than 106 cycles
  • Weight
    30 to 300 g (depending on housing material)
  • Damping
    Restrictors alternatively with 0.3/0.5/0.8 mm diameter
  • Protection
    IP 54 / IP 65 depending on the used protection cap
  • Protection class
    Protection class II is only met by using a protection cap from
    our accessories program.
  • Accessories
    Various mounting brackets and protection caps with
    IP 54 and IP 65
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Pressure switch 901 Prescal EX adjustable from -700 mbar to 12 bar.

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.

Applications

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

 

Specification

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)
Type Setting range between Maximum positive working pressure Maximum negative working pressure
Standard/extended 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

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Beck 901 Prescal® EX Pressure switch adjustable from -700 mbar to 12 bar-DpstarGroup

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