NIVELCO NIVOPOINT MR Series User Manual

NIVELCO NIVOPOINT MR Series User Manual Manual pdf 1 page image

NIVOPOINTManufacturerH-1043 Budapest, Dugonics u. 11.Phone: (36-1) 889-0100 Fax: (36-1) 889-0200NIVELCO Process Control Co.E-mail: sales@nivelco.com www.nivelco.comOBAC14ATEX0223X mra1053a0600h_08 1/2Thank you for choosing a NIVELCO instrument.We are sure that you will be satisfied throughout its use.1. APPLICATIONThe interaction of the magnetic float and the reed relays (incorporated in the protection tube) is the basis ofthe NIVOPOINT magnetic float level switch series operation. They are suitable for level indication of normaland explosive liquids, and can be used for level control tasks. The protecting tube contains a max. of 5relays. Parts of the instrument are: probe tube with magnetic float and housing containing the connectionterminal.The magnetic float moves alongside the protection tube tracking the level of the liquid and activating the reedrelays. As the float passes a relay it changes the output state of the relay which retains this state latchinguntil the level decreases and the float moves again along the respective relay to switch its state back.2. TECHNICAL DATA2.1. G ENERAL DATATYPE MR –  MP – MR –-7ExMR –-8ExInsertion length 0.25 m ... 3 mMaterial of wetted parts Stainless steel(1.4571 / BS 316Ti)PVDF float / PFA coatedprobeStainless steel(DIN 1.4571 / BS 316Ti)Max. process pressure 2.5 MPa (25 bar) at +20 C 0.3 MPa (3 bar) at +20 C 2.5 MPa (25 bar) at +20 CMedium density min.0.8 kg/dm3min.0.5 kg/dm3 min. 0.7 kg/dm3 min. 0.8 kg/dm3Nominal floatdimensions / shape 52x59mm*cylinder 96 mm*ball 76x87 mmcylinder 52x59 mmcylinderMedium temp. range -40 °C ... +150 °C -40 °C ... +80 °CAmbient temp. range -40 °C ... +100 °C -40 °C ... +100 °C See temperature classes tableOutput 1 ... 5 pcs reed-switches, connecting one side of each, NO/NCSwitching rate 120 W / VA, 250 V AC/DC, 3 A /reed relay, max. 9 ASwitch differential < 10 mmDistance of switches min. 110 mmM20 x 1.5 for cables  6 … 12M20 x 1.5for cables 9.5 …  10M 20 x 1.5(see: 5.1)Electrical connectionterminal, wire cross section: 0.5 … 2.5 mm2Process connection 1” BSP, 2” BSP1” NPT, 2” NPTPP flangeDN 80, DN 1001” BSP, 2” BSP1” NPT, 2” NPTSealing material Klingerit 400 — Klingerit 400Electrical protection Class I, Protecting cable 4 mm2Ingress protection IP 65Ex marking — II 2G Ex d IIC T6 …T3 GbDimension of the hous. 116 x 80 x 65 mm 124 x 80 x 65 mmMass 0.4 kg + 0.3 kg/fm 0.45 kg + 0.3 kg/fm* dimensions of the float depend on the orderNote: the device must be installed with Ex d certified explosion-proof cable gland.2.2. ADDITIONAL DATA FOR EX APPROVED MODELSCLASS T6 T5 T4 T3Max. ambient temperature from –20 °C +80 °C +95 °C +85 °C +70 °CMax. medium temperature from –20 °C +85 °C +100 °C +135 °C +150 °C2.3. ACCESSORIES User’s Manual Certificate of Warranty Declaration of Conformity 1 pc Gasket (for threaded versions)2.4. O RDER CODENIVOPOINT M – – ***T YPE CODE PROCESS CONNECTION CODE SWITCH POINT CODE L ENGTH CODE L ENGTH CODE F LOAT / EX CODEStandard R 1” BSP A 1 pc. NO/NC 1 0 m 0 0 m 0 *** / normal 32” BSP C 2 pcs. NO/NC 2 1 m 1 0.1 m 1Standard / plasticcoating and float P 1” NPT D 3 pcs. NO/NC 3 2 m 2 : : 521.4571 / Ex 72” NPT G 4 pcs. NO/NC 4 3 m 3 0.8 m 8  52DN 80 PN 16 PP P 5 pcs. NO/NC 5 0.9 m 9 1.4571 / ExDN 100 PN 16 PP R withoutNotes: cable gland8** The order code of an Ex version should end in ’Ex’ *** Depends on the order: 52 / 1.4571,  96 /1.4571 MP version:  76 / PVDF

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