Vega VEGABAR 82 Operating Instructions Manual

Also see for VEGABAR 82: Product information Operating instructions Quick setup guide Operating instructions Operating instructions

Contents

7110 SupplementVEGABAR 82 • 4 … 20 mA45027-EN-170522Ʋ for UN 24 V DC (18 V< UB < 35 V) ≤ 1.0 Veff (16 … 400 Hz)Load resistorƲ Calculation (UB - Umin)/0.022 AƲ Example - Non-Ex instrument withUB= 24 V DC(24 V - 9.6 V)/0.022 A = 655 ΩPotential connections and electrical separating measures in the instrumentElectronics Not non-floatingGround terminal Galvanically connected with the metal process fittingGalvanic separation between electronics and metal housing partsƲ Reference voltage 500 V ACElectrical protective measures10)Housing material Version Protection acc. toIEC 60529Protection acc. to NEMAPlastic Single chamber IP 66/IP 67 Type 6PAluminium Single chamber IP 66/IP 67IP 66/IP 68 (0.2 bar)Type 6PType 6PStainless steel (electro-polished)Single chamberSingle chamberIP 66/IP 67IP 69KType 6P-Stainless steel (precisioncasting)Single chamber IP 66/IP 67IP 66/IP 68 (0.2 bar)Type 6PType 6PStainless steel Transmitter for externalhousingIP 68 (25 bar) -Altitude above sea levelƲ by default up to 2000 m (6562 ft)Ʋ with connected overvoltage protectionon the master sensorup to 5000 m (16404 ft)Pollution degree11) 4Protection rating (IEC 61010-1) IIApprovalsInstruments with approvals can have different technical specifications depending on the version.For that reason the associated approval documents of these instruments have to be carefullynoted. They are part of the delivery or can be downloaded under www.vega.com, "Instrumentsearch (serial number)" as well as in the download area.10.2 Calculation of the total deviationThe total deviation of a pressure transmitter indicates the maximum measurement error to be ex-pected in practice. It is also called maximum practical deviation or operational error.According to DIN 16086, the total deviation Ftotal is the sum of the basic accuracy Fperf and the long-10) Protection rating IP 66/IP 68 (0.2 bar) only in conjunction with absolute pressure.11) When used with fulfilled housing protection.