DS-507 / DS-502

Product catalog summary

Introduction
The document introduces the DS 507/502 piston pressure switch, highlighting its precision, durability, and broad application range in industrial, mobile, and wind power settings. It emphasizes the company's expertise in material combinations and production techniques.

Function
The pressure switch operates on a piston-spring principle. When pressure exceeds a set value, the piston compresses a spring, triggering a microswitch that sends an electrical signal. The switching pressure is adjustable via an adjusting element, with mechanical stops to prevent over-adjustment.

Technical Data
The switch supports both AC and DC voltages, with a protection class of IP 65. It features a black painted aluminum housing and various connection options. The switch is designed to minimize wear and supports a wide range of pressures and temperatures. Key specifications include:

Voltage: 250 V/AC, 24 V/DC
Max. Ohmic Load: 5 A
Ambient Temperature: -40°C to +90°C
Pressure Fluid: Oil, oil-water emulsion

Service Life
The service life is influenced by factors such as pressure range, cycle rate, and electrical load. The company offers tailored solutions to meet specific requirements.

Ordering Information and Terminal Assignment
Details on ordering and terminal assignments are provided, including options for special seals and configurations. The document specifies terminal connections for different pressure conditions.

Reset Differential Pressure
The document explains hysteresis values for standard and special seals, noting that these depend on temperature, viscosity, and piston diameter.

Dimensions
Dimensions for various configurations are provided, with a note that scales are for orientation only and precise settings should be verified with a pressure gauge.

Catalog excerpts

PISTON PRESSURE SWITCH

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We are known throughout Europe as a leading specialist for piston pressure switches and provide our customers with a broad range of pressure switch designs. Many years of experience with material combinations, processing techniques and production tolerances enable us to meet the most varied requirements in a targeted and flexible Our pressure switches are distinguished by their durable precision, a broad spectrum of applications and uncompromising reliability. The DS 507/502 is the "standard" pressure switch. It is, in common with the DS 307/302, precise and durable, but less variable. The broad...

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TECHNICAL DATA special low-friction seal SERVICE LIFE The service life of a piston pressure switch depends on numerous factors. Minimum and maximum pressures, cycle rate, load change, hydraulic vibration, the load (amp.) on the electrical switch, etc. Where a pressure switch needs to meet special requirements, we are in a position to address the most varied requirements in a flexible and targeted manner, thanks to our years of experience with material pairings, machining processes

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ORDERING INFORMATION DS-5** / - / / SS 1) pipe installation flange connection panel installation adjusting knurl with scale lockable adjusting knurl with scale (E10 H2 closure)) = special low-friction seal, only for following pressure ranges: 5- 55 bar 10-100 bar 40-240 bar 20-350 bar = = = = = Switching pressure ranges 055 100 150 240 350 1) = 5- 55 =10- 100 =20- 150 =40- 240 =20- 350 bar bar bar bar bar pmax. standard pmax. special SS seal 300 400 500 500 500 Fixed switching points preset by manufacturer: - standard pressure rising - falling if desired (several additional details separated...

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RESET DIFFERENTIAL PRESSURE 1. Standard seal (normal version): The hysteresis achieved during continuous operation is approx. 7-12 % of the final value at a set pressure of approx. 60-70 % of the max. adjustable switching pressure. Example: In the case of a DS-507-100 pressure switch with a pressure range of 10-100 bar, a hysteresis of approx. 7-12 bar is achieved at a set pressure of 70 bar. 2. Special low-friction seal (SS design) The hysteresis achieved during continuous operation is approx. 3-6 % of the final value at a set pressure of approx. 60-70 % of the max. adjustable switching pressure....

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DIMENSIONS Type DS-507/*** or DS-502/*** 1) 1) adjusting setting protection 1) The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. Type DS-507/F/*** or DS-502/F/*** 1) 1) 2) O-Ring Ø7x1,5 1) The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. 2) The .../P90 version is only available up to Pmax. 350 bar (flange version only). 5/6 Required surface quality of unit support surface

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DIMENSIONS Type DS-507/SCH*** or DS-502/SCH*** 1) 1) 1) The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. version “90°” version “axial” standard version version “L-MP***” version “LED-34” Cable sockets 6/6

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