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Catalogue Pressure Transmitter

82 www.bdsensors.com DMK 458 Transmitter for Marine and Offshore Technical Data Pressure ranges Nominal pressure 1 [bar] 0.04 0.06 0.1 0.16 0.25 0.4 0.6 1 1.6 2.5 4 6 10 16 20 Level [mH2O] 0.4 0.6 1 1.6 2.5 4 6 10 16 25 40 60 100 160 200 Overpressure [bar] 2 2 4 4 6 6 8 8 15 25 25 35 35 45 45 Permissible vacuum [bar] -0.2 -0.3 -0.5 -1 1 available in gauge, sealed gauge and absolute; nominal pressure ranges sealed gauge and absolute from 1 bar Output signal / Supply Standard 2-wire: 4 ... 20 mA / VS = 9 ... 32 VDC VS rated = 24 VDC Option IS-version 2-wire: 4 ... 20 mA / VS = 14 ... 28 VDC VS rated = 24 VDC Performance Accuracy 2 standard: ≤ ± 0.25 % FSO option: for PN ≥ 0.6 bar 3 : ≤ ± 0.1 % FSO Permissible load Rmax = [(VS – VS min) / 0.02 A] Ω Long term stability ≤ ± 0.1 % FSO / year Influence effects supply: 0.05 % FSO / 10 V load: 0.05 % FSO / kΩ Turn-on time 700 msec Mean response time < 200 msec mean measuring rate 5/sec Max. response time 380 msec 2 accuracy according to IEC 60770 – limit point adjustment (non-linearity, hysteresis, repeatability) 3 Under the influence of disturbance burst according to EN 61000-4-4 (2004) 2 kV accuracy decreases on ≤ ± 0.25 % FSO. Thermal effects Thermal error ≤ ± 0.1 % FSO / 10 K in compensated range -20 … 80 °C Permissible temperatures Permissible temperatures medium: -40 ... 125 °C electronics / environment: -25 ... 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 and Germanischer Lloyd (GL) Mechanical stability Vibration 4 g (according to GL: curve 2 / basis: DIN EN 60068-2-6) Materials Pressure port standard: stainless steel 1.4404 (316 L) option for threaded connections: CuNi10Fe1Mn - on request Housing stainless steel 1.4404 (316 L) Cable sheath for version cable outlet PUR Cable gland for version field housing absolute, sealed gauge: brass, nickel plated gauge: polyamide (with integrated pressure reference) others on request Seals (media wetted) FKM others on request Diaphragm standard: ceramics Al2O3 96 % option: ceramics Al2O3 99.9 % Media wetted parts pressure port, seals, diaphragm IS protection Approval DX14A-DMK 458 IBExU 07 ATEX 1180 X field housing zone 0: II 1G Ex ia IIC T4 ISO 4400, M12x1, cable outlet: zone 0: II 1G Ex ia IIB T4 Safety technical maximum values Ui = 28 V; Ii = 93 mA; Pi = 660 mW field housing: Ci = 52.3 nF; Li = 5 µH; 90.2 nF opposite GND ISO 4400, M12x1, cable outlet: Ci = 105 nF; Li = 5 µH; 140 nF opposite GND Permissible temperatures for environment in zone 0: -20 ... 60 °C with patm 0.8 bar up to 1.1 bar zone 1 and higher: -25 ... 70 °C Permissible temperatures for medium -40 ... 85 °C Miscellaneous Ingress protection IP65, IP 67, IP68 Installation position any Current consumption max. 21 mA Weight min. 400 g (depending on housing and mechanical connection) Operational life > 100 x 106 cycles CE conformity EMC Directive: 2004/108/EC ATEX Directive 94/9/EC DMK 458 Technical Data

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