DSD: Differential-pressure switch - sauter-controls.com sauter ...

23.402/1DSD: Differential-pressure switchHow energy efficiency is improvedDemand-led controlling and monitoring, without auxiliary energy.Areas of applicationFor controlling and monitoring pressures in liquids, gases and vapours, as well as for monitoring theflow of heating pumps. Especially suitable for equipment that is subject to vibrations.Features• Pressure range: 0.2 to 16 bar• Contact rating: 4 mA, 5 V to 10 A, 250 V• Up to 110 °C media temperature• Gold-plated silver contacts• Adjustable switching difference• Sealable• Mechanical service life: > 1x 106 switching cyclesTechnical description• Light-alloy housing with transparent cover made of impact-resistant thermoplastic• Ambient temperature: -20 to +70 °C• IP 65• Standard housing-mounted plug with cable connector for cables of 6 to 10 mm in diameterType Range Switching Max. sensor values Weightdifferencebar bar bar °C kgDifferential-pressure switch with variable switching differenceDSD 137 F001 0,2...1,0 0,20...1,4 6 110 0,63DSD 140 F001 0,4...2,5 0,40...1,6 10 110 0,63DSD 143 F001 0,5...6,0 0,45...2,2 12 110 0,63DSD 152 F001 1,0...16 0,60...3,4 25 110 0,63Differential-pressure switch with fixed, small switching differenceDSD 134 F101 0,05...0,4 0,04 6 110 0,63XsdPD3 2Y033071B06966PDXsContact rating:- Ambient temperature –20...70 °Cas silver contacts 1) 10(3) A, 250 V~ Degree of protection IP 65 (EN 60529)50 W, 250 V= Protection class I (IEC 60730)minimum100 mA, 24 Vas gold-plated contacts 2) 160 mA, 50 V Wiring diagram A01499minimum 4 mA, 5 V Dimension drawing M06967Permissible vacuum loading –0,7 bar Fitting instructions MV 505424DSD 152–1,0 barAccessories0190403 005* Brass connector with cap nut (Serto system), 2 pieces required0259984 000* Bracket for 3-point fixing0292110 001* Two throttle screws, Rp 1 /8, for arresting pressure surges; stainless steel.0296936 000* Fixing bracket for top-hat rails EN 60715, 35 × 7,5 or 35 × 15*) Dimension drawing or wiring diagram are available under the same number1) If under inductive load, take RC circuit into account2) If the contacts are loaded with more than 160 mA, 50 V, the gold plating suffers irreparable damage.They then lose the properties of gold contacts, and operate thenceforth as silver contactsOperationWhen the pressure falls below the lower switching point (variable setpoint XS), the contacts changeover from 1-3 to 1-2. When the pressure rises by the switching difference XSd above the lower switchingpoint, the contacts change from 1-2 to 1-3.The switching difference can be set externally using a grub screw: one turn changes the switchingdifference by approx. 20 % of its whole range.Sauter Components7123402003 04

23.402/2 DSDAdditional informationMaterials that come into contact with the medium are of stainless steel (material nos. 1.4104, 1.4435, 1.4541).Additional technical detailsReproducibility of X s± 2% of the rangeInfluence coefficient on cos ϕ = 1:switching difference 2) 0,017 10 A, 250,000 switching operationsRadio suppressed as per EN 55014 5 A, 400,000 switching operations2 A, approx. 10 6 switching operationscos ϕ = 0.6:3 A, 400,000 switching operationsComplies with:- cos ϕ = 0.3: 1)Directive 2006/95/EC EN 60730-1/ EN 60730-2-6 3 A, 250,000 switching operationsEMC directive 2004/108/EC EN 61000-6-1/ EN 61000-6-2 2 A, 400,000 switching operationsEN 61000-6-3/ EN 61000-6-41 A, 700,000 switching operationsNot covered by the PED directive Art. 1.3.6 of the PED Mechanical life: > 1 × 10 6 switching operations1) cos ϕ < 0.3: substantial reduction in life expectancy; with RC circuitry, life expectancy is as forcos ϕ > 0.3 (see also technical notes).2) see technical notesTechnical notesRC circuit under inductive loadFor the optimum RC circuitry, refer to the specifications supplied by the manufacturers of the relays, contactorsetc. If these are not available, the following rule of thumb can be applied:-• Capacitance of the RC circuit (μF) is equal to or greater than the operating current (A).• Resistance of the RC circuit (Ω) is approx. equal to the resistance of the coil (Ω).B03772Influence coefficient on switching differenceThe switching difference is slightly dependent on the setpoint. The switching differences stated in the PDSsheet are typical values at the start of the range. The influence of the setpoint on the switching difference isworked out thus: (setpoint X S - start of range) × influence coefficient.Wiring diagramDimension drawing451 2 3PA01499a67 1080 50DSDPg112561Ø4,5Ø4,5Rp1/8481664595 10628Ø4567M06967Sauter Components7123402003 04

DSD 23.402/3Accessories2969362554,5259984204,51,5M3X6292110 G1/824144,510181330324025371213180,5M001669583,5M00654190403/00533R1/810Ø6M07633sw14R1/8M09870Sauter ComponentsPrinted in SwitzerlandRight of amendment reservedN.B.: A comma between cardinalnumbers denotes a decimal point© Fr. Sauter AG, CH-4016 Basle7123402003 04