BENEFITS

Engineered for demanding industrial environments, Beck pressure switches safeguard equipment and processes by reliably monitoring overpressure and vacuum across a wide range of media. Our versatile Series 901 covers everything from fine low‑pressure and vacuum control to high‑pressure cut‑out up to 12 bar; choose factory‑set versions for repeatable switching or the Prescal variants with a scaled adjustment knob for quick, tool‑free setpoint tuning—even for aggressive liquids and gases when configured with the right materials.  

Application Details

Level monitoring: on/off switching via bubbler/back‑pressure in tanks.

Wastewater technology: pump cut‑in/cut‑out, overflow protection, head‑pressure control.

Pump & utility skids: minimum/maximum pressure permissives for dosing, transfer and CIP loops.

Process and OEM machinery: hydraulic/pneumatic circuit enable, lubrication and seal protection.

Medical technology: simple binary alarms in non‑aggressive media paths.

Why 901

Versatile media & ranges: from negative pressure up to 12 bar; suitable for liquids and gases with multiple diaphragm and connection options (PPS/metal).

Power‑independent, reliable switching: robust snap‑action mechanism for limit protection and interlocks.

Configurable:

• Factory‑set 901 for repeatable thresholds (incl. high‑pressure 901.41/901.51).
• 901 Prescal (adjustable) with scaled knob—tool‑free setpoint changes.
• EX and Gas variants for hazardous areas and city/natural/LPG overpressure monitoring.

Pressure ranges

standard pressure (sub code 6x)
5…3000mbar
overpressure (sub code 9x)
1.0…12.0bar
vacuum (sub code 7x)
-5…-700mbar
high accuracy applications (sub code 8x)
5…50mbar

Tolerance band on set and reset pressure
standard precision +/- 10%

Max operating pressure
please refer to datasheet