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DSB, DSF: Pressure monitors and pressure switches

DSB, DSF: Pressure monitors and pressure switches
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DSB, DSF: Pressure monitors and pressure switches - 1

Product data sheet DSB, DSF: Pressure monitors and pressure switches How energy efficiency is improved Control and monitoring according to needs and with no auxiliary energy. For regulating and monitoring pressure in liquids, gases and vapours Adjustable lower switching point Adjustable switching difference Sealable Pressure sensor made of brass for non-aggressive media (DSB) Pressure sensor made of stainless steel for aggressive media (DSF) SIL 2 certified as per EN 61508 Approved for marine applications (GL and LR certified) Technical data Power supply 400 mA, 24 V, 10 VA Minimum load with gold-plated contacts Minimum load with silver-plated con- 100 mA, 24 V tacts Parameters Pressure connection Admissible ambient temperature Maximum load with silver-plated con- 10(4) A, 250 V~, 50 W, 250 V= tacts Maximum load with gold-plated contacts1) Transparent cover Ambient conditions Construction Housing material Impact-proof thermoplastic Device plug Standard plug with female cable connector for cable Ø 6...10 mm Standards and directives Protection class VdTÜV pressure information sheet 100 cat. IV (as SDBFS) EN 12952-11, EN 12963-9 Ship-approved CE conformity according to Germanischer Lloyd (GL) Lloyds Register Machine directive 2006/42/EC (according to appendix IIB) If the contacts are subjected to a load greater than specified, the gold plating will be destroyed. They are then classed merely as silver contacts and lose the properties of gold-plated contacts Depending on the fitting position, see the fitting instructions. The devices are not suitable for outdoor applications. DWFS (SDBFS): As a safety pressure limiter when an external electrical locking facility is fitted downstream in the circuit. Certificates can be downloaded from www.certipedia.com Right of amendment reserved © 2016 Fr. S

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DSB, DSF: Pressure monitors and pressure switches - 2

Type Setting range Switching dif- Maximum Max. sensor Admissible Weight ference pressure temp. vacuum load- -f- DSB: Pressure sensor made of brass for non-aggressive media; Xs = lower switching point -f- DSF: Pressure sensor made of stainless steel for aggressive media; Xs = lower switching point -f- The switching difference must be within the setting range of the switching point. The minimum values of the switching difference are only possible in the lower setting range. Type Description 0192222000 Cap nut with solder connector 0259239000 Reduction piece G%" on 7/16" 20-UNF-2Afor copper...

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DSB, DSF: Pressure monitors and pressure switches - 3

Product data sheet Electrical serviceable life • Mechanical serviceable life of the pressure pads according to pressure 100 > 2 × 106 switch strokes • Typically cos φ = 1 3 A, 250,000 switchings 2 A, 400,000 switchings 1 A, 700,000 switchings Important: Using the device in SIL applications and as a safety device in machine construction changes its electrical serviceable life. Typically to be considered: 10 A, 6,000 switchings Technical appendix RC circuitry for inductive load For the optimum RC circuitry, see the information from manufacturers of gates, relays, etc. If this is not...

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DSB, DSF: Pressure monitors and pressure switches - 4

Product data sheet Use in safety applications The devices fulfil the requirements of standard EN 61508 and can be used in safety applications up to SIL 2. The information in the related operating instructions and in the safety manual must be considered. The products are SIL2-compatible as per EN/IEC 61508 and EN/IEC 61511 and are therefore suitable for use in safety-oriented systems. SIL-compatibility figures Type A Type of sub-system Operating mode Probability of failure on demand Assumed demand rate Test interval Non-dangerous failure rate Hardware error tolerance Diagnostic degree...

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DSB, DSF: Pressure monitors and pressure switches - 5

Product data sheet Based on standard ISO 13849-1 and for use in systems with a high demand rate, the following parameters were determined. • Maximum admissible demand rate: 50 per year • B10d = 6000 • PFH = 9.51 E-08 A single pressure monitor or limiter can be used within the operating range of standards EN ISO 13849-1 to PL c. To safeguard against higher risks (PL d, PL e), they must be used redundantly, and in the downstream safety module, the plausibility of the switching states must be monitored continuously. Architectural and structural requirements must be tested by the end user....

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