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Catalogue Pressure Transmitter

87 www.bdsensors.com DMK 457 Shipbuilding and Offshore Technical Data Input pressure range Nominal pressure gauge [bar] -1 … 0 0.4 0.6 1 1.6 2.5 4 6 10 16 25 40 60 100 160 250 400 600 Nominal pressure abs. [bar] - - 0.6 1 1.6 2.5 4 6 10 16 25 40 60 100 160 250 400 600 Level gauge / abs. [mH2O] - - 6 10 16 25 40 60 100 160 250 400 600 - - - - - Overpressure [bar] 4 1 2 2 4 4 10 10 20 40 40 100 100 200 400 400 600 800 Burst pressure ≥ [bar] 7 2 4 4 5 5 12 12 25 50 50 120 120 250 500 500 650 880 Vacuum resistance PN ≥ 1 bar: unlimited vacuum resistance PN < 1 bar: on request Output signal / Supply Standard 2-wire: 4 ... 20 mA / VS = 8 ... 32 VDC Option IS-protection 2-wire: 4 ... 20 mA / VS = 10 ... 28 VDC Performance Accuracy1 IEC 60770: ≤ ± 0.5 % FSO Permissible load Rmax = [(VS – VS min) / 0.02 A] Ω Influence effects supply: 0.05 % FSO / 10 V load: 0.05 % FSO / kΩ Response time < 10 msec 1 accuracy according to IEC 60770 – limit point adjustment (non-linearity, hysteresis, repeatability) Thermal effects (Offset and Span) / Permissible temperatures Thermal error ≤ ± 0.2 % FSO / 10 K in compensated range: -25 ... 85 °C Permissible temperatures medium: -40 ... 125 °C electronics / environment: -40 ... 85 °C storage: -40 ... 100 °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 - Germanischer Lloyd (GL) - Det Norske Veritas (DNV) Mechanical stability Vibration 4 g (according to GL: curve 2 / according to DNV: Class B / basis: IEC 60068-2-6) Materials Pressure port Standard: stainless steel 1.4404 (316L) option 2 : CuNi10Fe1Mn (sea water resistant) - for PN ≤ 400 bar with mech. connection G1/2" DIN 3852, G1/2" EN 837, G1/2" open port, G1/4" DIN 3852, G1/4" EN 837 in combination with housing in CuNi10Fe1Mn Housing standard: stainless steel 1.4404 (316L) option 2 : CuNi10Fe1Mn (sea water resistant) - in combination with pressure port in CuNi10Fe1Mn option field housing: stainless steel 1.4404 (316L); with cable gland Cable sheath for cable outlet for submersible version permissible temperatures PVC - cable PUR - cable - PUR - probe cable FEP - probe cable TPE - probe cable -5 … 70 °C -25 … 70 °C -25 … 70 °C -25 … 125 °C Seals (media wetted) standard: FKM option: NBR, FFKM (only for PN ≤ 100 bar) others on request Diaphragm ceramic Al2O3 96 % Media wetted parts pressure port, seals, diaphragm 2 IS-version on request IS-protection (only for 4 … 20 mA / 2-wire) Approvals DX19-DMK 457 IBExU 10 ATEX 1068 X / IECEx IBE 12.0027X zone 0: II 1G Ex ia IIB T4 Ga zone 20: II 1D Ex ia IIIC T 85°C Da Safety technical maximum values Ui = 28 V, Ii = 93 mA, Pi = 660 mW, Ci = 105 nF, Li = 5 µH, the supply connections have an inner capacity of max. 140 nF to the housing Permissible media temperature in zone 0: -20 ... 60 °C with patm 0.8 bar up to 1.1 bar in zone 1 or higher: -20 ... 70 °C Connecting cables (by factory) cable capacitance: signal line/shield also signal line/signal line: 160 pF/m cable inductance: signal line/shield also signal line/signal line: 1µH/m DMK 457 Technical Data

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