English copy version 2010/REV04 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. The DS 307/302 is the all-rounder among serial switches (the "original"). It is also extremely reliable under rough ambient conditions,...

TECHNICAL DATA 1} 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 The pressure switches must be installed so that the device is not exposed to damaging vibrations during operation...

ORDERING INFORMATION - flange connection - with 90° elbow connection plate - panel installation - adjusting knurl with scale - lockable adjusting knurl with scale (not for versions with scales) ■ cable socket conforming to EN 175301-80 model type A, Pgll (Pg9 on request) ■ 4-pole socket with LED function display ■ cable socket conforming to EN 175301-80 model type A, 1/2" NPTF, - brass housing - special low-friction seal, only for following pressure ranges: ''Special versions not in stock! 2) Available only for pressure range 055, 350, 420! Fixed switching points - standard pressure rising BVD2)3)...

nd ard ,a xia l BV 90 L- MP 24 Connector conforming to EN 175301-803 LE D- ° 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 sta 34 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...

DIMENSIONS Type DS-307/*** or DS-302/*** 1) 1) adjusting setting protection 2) 1) The scale is only provided for orientation. The exact configuration of the switching pressure should be realised with a pressure gauge. 2) The .../B version with 2 two through-holes for fixing can be axially offset through 360° (only for pipe connection version). Type DS-307/F/*** or DS-302/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 .../F/P version is only available up to Pmax. 350...

DIMENSIONS Type DS-307/SCH*** or DS-302/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. ca. 57 version “BV” Cable sockets version “90°” 36 version “axial” standard version version “L-MP 24” version “LED-34” 29 6/6

HYDROPA HYDRAULISCHE ER2EUGNISSE GMBH & CIE KG paimmbusc*. 4 • D-58456 Wrtten / PoMfach 3165 • 0-58422 Witlen E-Mail in(o@hydropa do • Intemol *w*hydropa.do