Beck. The factory-set pressure switches

Product catalog summary

Overview: The document provides technical specifications and details for Beck's factory-set pressure switches, specifically the 901 series. These switches are designed for monitoring overpressure, vacuum, or differential pressure in various media, including aggressive liquids and gases.

Specifications:

Pressure Setting: Factory-set by the manufacturer.
Temperature Range: Ambient temperature from -20°C to +85°C; media temperature up to 85°C or 130°C depending on materials used.
Diaphragm Material: Options include NBR, Silicone, FKM (Viton®), EPDM, with specific materials available for different models.
Electrical Rating: Standard version supports up to 10 A / 250 VAC and 2 A / 24 VDC; low-voltage version supports up to 100 mA / 24 VAC and 30 mA / 24 VDC.
Electrical Connection: Tab terminal 6.3 mm x 0.8 mm as per DIN 46244.
Life Cycle: Mechanically rated for over 1 million cycles.
Mounting Position: Can be mounted in any position, with specific requirements for settings below 100 mbar.
Protection: Varies from IP00 to IP65 depending on the protection cap used.
Conformity: Complies with EU Low Voltage and RoHS Directives.

Pressure Connection Options: Various tube and threaded connections are available, with materials including polyamide, PVDF, PPS, brass, and stainless steel. For temperatures above 85°C, metal or PPS connections are recommended.

Performance Ranges:

Overpressure Range: Models like 901.1x and 901.51 have specific trip pressures, switching differentials, and maximum working pressures.
Vacuum Range: Model 901.2x covers trip pressures from -5 mbar to -900 mbar with defined switching differentials.
Differential Pressure Range: Model 901.30 ranges from 5 mbar to 50 mbar.

Accessories: Includes various mounting brackets and protection caps with different IP ratings.

Warnings: Installation must comply with applicable regulations, and instructions should be read before use.

Catalog excerpts

Beck. The factory-set pressure switches.

Open the catalog to page 1

Pressure switch 901 with factory-set pressure setting Application Factory-set pressure switch monitoring overpressure, vacuum or differential pressure of liquid and gaseous - also aggressive -media Pressure setting and switching differential are factory-set by the manufacturer. Temperature range Ambient temperature from -20°C to +85°C Temperature of media up to 85° C or 130° C depending on material of pressure connection and diaphragm Diaphragm material Depending on media NBR, Silicone, FKM (Viton®), EPDM For 901.30 Silicone, others upon request Electrical rating Standard version max. 6 (1.5)...

Open the catalog to page 2