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Catalogue Differential Pressure

5 www.bdsensors.com XMD Differential Pressure Transmitter Technical Data Pressure ranges Nominal pressure [bar] 0.075 0.4 2 7 20 Permissible static pressure [bar] 130 130 130 130 130 Output signal / Supply Standard Option 2-wire: 4 ... 20 mA IS-intrinsically safe version with HART® -communication / VS = 12 ... 28 VDC IS version flameproof enclosure / VS = 13 … 28 VDC Performance Clocking error ≤ ± 0.2 % FSO Accuracy 1 turn-down ≤ 5:1: ≤ ± 0.1 % FSO turn-down > 5:1: ≤ ± [0.1 + 0.015 x turn-down] % FSO with turn-down = nominal pressure range / adjusted range Permissible load load during HART® -communication: Rmin = 250 Ω Supply ≤ 0.05 % FSO / 10 V Permissible load ≤ 0.05 % FSO / kΩ Long term stability ≤ ± (0.1 x turn-down) % FSO / year at reference conditions Response time 300 msec – with electronic damping 0 sec Measuring rate 3.5/sec Adjustability electronic damping: 0 … 100 sec offset: 0 ... 90 % FSO turn-down of span: max. 10:1 1 accuracy according to IEC 60770 – limit point adjustment (non-linearity, hysteresis, repeatability) Thermal effects (Offset and Span) / Permissible temperatures Thermal error ≤ ± (0.1 x turn-down) % FSO / 10 K in compensated range standard: -20 … 80 °C optional for device without display: -40 … 60 °C Permissible temperatures without display: medium: -40 ... 85 °C environment: -40 ... 50 °C storage: -40 ... 80° C with display: medium: -40 ... 85 °C environment: -20 ... 50 °C storage: -30 ... 80 °C Electrical protection Short-circuit protection permanent Reverse polarity protection no damage, but also no function Electromagnetic compatibility emission and immunity according to EN 61326 Mechanical stability Vibration 5 g RMS (25 ... 2000 Hz) according to DIN EN 60068-2-6 Shock 100 g / 1 msec according to DIN EN 60068-2-27 Materials Pressure port stainless steel 1.4401 (316) Housing aluminium die cast, powder-coated Viewing glass laminated safety glass Seals (media wetted) FKM / EPDM Diaphragm Standard Option stainless steel 1.4435 (316 L) Hastelloy® C-276 (2.4819) Media wetted parts pressure port, seals, diaphragm Filling fluids silicon oil Explosion protection Approval AX12-XMD IBExU 05 ATEX 1106 X zone 1: II 2G Ex ia IIB T4 Gb / II 1D Ex ia IIIC T85 °C Da Safety technical maximum values for intrinsically safe version Ui = 28 V, Ii = 93 mA, Pi = 660 mW, Ci = 0 nF, Li = 0 μH, CGND = 27 nF Approval AX17-XMD (flameproof enclosure) IBExU 12 ATEX 1045 X zone 1: II 2G Ex d IIC T5 Gb Permissible temperatures for environment in zone 1: -20 ... 65 °C (intrinsically safe version); -20 ... 70 °C (flameproof enclosure) Miscellaneous Display (optionally) LC display, visible range 32.5 x 22.5 mm; 5-digit 7-segment main display, digit height 8 mm, range of indication ±9999; 8-digit 14-segment additional display, digit height 5 mm; 52-segment bargraph; accuracy 0.1% ± 1 digit Ingress protection IP 67 Installation position any Weight min. 3500 g Current consumption approx. 21 mA Operational life > 100 x 106 cycles CE-conformity EMC Directive: 2004/108/EC XMD Technical Data

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