English copy version 2015/REV05 PISTON PRESSURE SWITCH DS-307 / DS-302

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. Reset differential pressure 4 The DS 307/302 is the all-rounder among serial switches (the "original"). It is also extremely reliable...

TECHNICAL DATA design connection adjusting setting protection installation weight General information piston spring-loaded, mechanical stop prevents compression spring seizing due to excessive turning internal G 1/4 thread or flange surface adjusting screw cover or adjusting knurl fixing cover or lockable adjusting knurl (E10 H2 closure) arbitrary basic type 0,5 kg Hydraulic ø 6 mm piston diameter ø 3 mm ø 4 mm ø 5 mm switching pressure ranges 50-600 bar 50-420 bar 20-350 bar 40-240 bar 20-150 bar 10-100 bar 5-55 bar 400 bar 300 bar P max. (standard seal) 800 bar 600 bar 600 bar 500 bar 500 bar...

undesign. = pipe installation F = flange connection F/P = with 90° elbow connection plate (p max. = 350 bar) SCH = panel installation 1) V2 = adjusting knurl with scale AS-H2 = lockable adjusting knurl with scale 1) (E10 H2 closure) PO = sealable (not for versions with scales) undesign. = cable socket conforming to EN 175301-803 L-MP 24 LED-34 MS 1) SS 1) model type A, Pg11 (Pg9 on request) 4-pole 24 V lamp socket 4-pole socket with LED function display brass housing special low-friction seal, only for following pressure ranges: 5- 55 bar 10-100 bar 40-240 bar 20-350 bar (several additional details...

M12x1 connector, 4-pole available on request (only 24 V DC) (M12x1 cable socket available on request) (see ordering information for cable sockets) Special solutions possible on request 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-307-100 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...

The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. The .../B version with 2 two through-holes for fixing can be axially offset through 360° (only for pipe connection version). The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. The .../F/P version is only available up to Pmax. 350 bar (flange version only). Required surface quality of unit support surface

The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. Cable sockets version “axial” standard version

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