Elektrogas PSG Pressure Switch

[{"filename":"PSG_901_en.pdf","text":"PSG 901\n Pressure Switch for Gas\n\n\n\n\nelektrogas.com EE141 – 1119\n\f ELEKTROGAS – Scheda tecnica EE141 – 1119\n\n\n\nPSG 901\nPressure Switch for Gas\n(EN1854)\n\n\n\nContents\n Description ............................................................................................................. 2\n Features................................................................................................................. 2\n Functioning and application ................................................................................... 3\n Technical specifications ......................................................................................... 4\n Ordering information .............................................................................................. 5\n Standards and approvals ....................................................................................... 5\n Installation, wiring and adjustment ......................................................................... 6\n\n\n\n\nDescription\n The PSG 901 is an adjustable pressure switch as per EN 1854, for monitoring overpressure of\n gaseous media.\n\n\n\n\nFeatures\n The pressure switch has a knob for adjusting the switching pressure (Fig. 1) selectable within a\n predefined range.\n\n It is suitable for monitoring overpressure of air and non-aggressive gases (families 1-2-3 EN437).\n Special versions are available for use with aggressive gases.\n\n The compact, robust and functional design permits a simple, quick, and essentially maintenance\n free installation.\n\n A special filter (20μm) protect the sensing element from dirt and dust which could fail the item.\n\n All components are designed to withstand mechanical, thermal and chemical stresses present in\n a typical installation.\n\n Pressure switches are 100% calibrated.\n\n\n\n\n Fig. 1\n\n WARNING\n This device shall be installed in accordance with the laws in force.\n\n\n 2-6\n\f ELEKTROGAS – Scheda tecnica EE141 – 1119\n\n\nFunctioning and application\n The PSG pressure switch is designed for the monitoring of operating overpressures on air and\n gas line.\n When the pressure exceeds the set value, the electrical contact switches. When pressure\n decrease, the contact switches again (Fig. 2).\n\n\n\n\n Fig. 2\n\n\n\n\n The pressure switch has a threaded connection G¼ that allows installation on the gas line or\n directly on components of the Elektrogas range with pressure test point.\n Fig. 3 shows an example of a typical installation.\n\n\n\n Slow op.\n valve\n Manometer Fast op. VML\n valve\n Pressure VMR\n Switch\n PSG\n\n\n\n\n Gas Consumer\n network\n Ball valve Pressure\n Gas filter regulator\n FG/FGS\n Leak\n Tester\n Fig. 3\n\n\n\n\n R C\n e V F P o\n t a i r n\n e l l e t\n G v t s r\n a o r s o\n s l o o l\n a G s l\n a a t o\n s s a t\n f t e\n e o n\n r u\n a t\n a\n\n\n\n\n WARNING\n Place and manner of installation must be in accordance with the laws in force.\n\n\n 3-6\n\f ELEKTROGAS – Scheda tecnica EE141 – 1119\n\n\n\nTechnical specifications\n Tab. 1\n Connection G ¼ (male)\n\n Operating and max pressure See table\n\n Environmental temperature -20°C / +85°C\n\n Diaphragm material NBR\n Viton® (special version for aggressive gases)\n\n Installation On horizontal and vertical piping\n\n Gas type Air and non aggressive gases (fam. 1-2-3 EN437)\n Special versions for aggressive gases\n\n Electrical ratings AgNi contacts 250 V AC 6 A(resistive)\n (1.5 A inductive)\n\n 24 V DC 2A\n\n Gold-plated contacts 24 V AC 100 mA\n\n 24V DC 30 mA\n\n Electrical connection Quick-connect terminals 6.3x0.8 (DIN46244) and ISO16\n cable gland\n\n ISO4400 plug with PG9 cable gland\n\n Enclosure IP54\n optional IP65\n\n Materials in contact with media Brass\n PE UHMW (filter)\n Plated steel\n Nitrile rubber (NBR)\n Stainless steel (aggressive gases version)\n FPM (aggressive gases version)\n\n\n\n\n Fig. 4\n\n\n\n\n 4-6\n\f ELEKTROGAS – Scheda tecnica EE141 – 1119\n\n\nOrdering information\n The pressure switch is available in different versions, all with threaded connection G ¼.\n\n It is possible to choose the pressure range depending on the Tab. 2 and 3.\n\n Versions for aggressive gases should be specified when ordering.\n Tab.2\n Pressure Differential Maximum\n Type Weight\n Conn. range Tolerance pressure pressure\n PSG [kg]\n [mbar] [mbar] [mbar]\n\n 901.61 5-20 3 500\n 901.62 10-50 5 500\n G¼\n 901.63 25-100 +/-10% 10 500 0,165\n (male)\n 901.64 50-250 20 1000\n 901.65 100-500 50 1000\n\n Tab.3\n\n PSG901 .61 - - -\n Pressure range [mbar]\n .61 5 – 20\n .62 10 – 50\n .63 25 – 100\n .64 50 – 250\n .65 100 – 500\n\n Electrical connection\n [none] terminals (standard)\n P ISO4400 plug with PG9\n\n Contacts\n [none] 230 VAC - 24VDC 2A AgNi (standard)\n C 24V AC/DC Gold plated\n\n Special version - optional\n [none] air and non aggressive gases (standard)\n J bio and coke gas ( aggressive gases version)\n S IP65\n\n\n\nStandards and approvals\n\n These products comply with:\n\n • 2016/426/EU Gas Appliances Regulation…