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Catalogue Pressure Transmitter

68 www.bdsensors.com DMK 351 Pressure Transmitter Technical Data Pressure ranges Nominal pressure [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 Low pressure [bar] -0.2 -0.3 -0.5 -1 Output signal / Supply Standard 2-wire: 4 ... 20 mA / VS = 9 ... 32 VDC Option IS-protection 2-wire : 4 ... 20 mA / VS = 14 ... 28 VDC Option 3-wire: 0 ... 10 V / VS = 12.5 ... 32 VDC Performance Accuracy 1 standard: ≤ ± 0.35 % FSO option for PN ≥ 0.6 bar: ≤ ± 0.25 % FSO Permissible load current 2-wire Rmax = [(VS – VSmin) / 0.02 A] Ω voltage 3-wire: Rmin = 10 k Ω Influence effects supply: 0.05 % FSO / 10 V load: 0.05 % FSO / kΩ Long term stability ≤ ± 0.1 % FSO / year Turn-on time 700 msec Mean measuring rate 5/sec Response time mean response time: < 200 msec max. response time: 380 msec 1 accuracy according to IEC 60770 - limit point adjustment (non-linearity, hysterisis, repeatability) Thermal errors (Offset and Span) Tolerance band ≤ ± 0.1 % FSO / 10 K in compensated range: -20 … 80 °C Permissible temperatures 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 Mechanical stability Vibration 10 g RMS (20 ... 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 1.4404 (316L) Housing stainless steel 1.4404 (316L) Option compact field housing stainless steel 1.4305 (303) with cable gland brass, nickel plated others on request Seal (media wetted) FKM EPDM Diaphragm standard: ceramics Al2O3 96 % option: ceramics Al2O3 99.9 % Media wetted parts pressure port, seals, diaphragm IS-protection (only for 4 … 20 mA / 2-wire) Approval DX 14-DMK 351 IBExU 05 ATEX 1070 X Male (connector)-version: zone 0: II 1G Ex ia IIC T4 Ga zone 20: II 1D Ex iaD 20 T 85°C cable-version: zone 0: II 1G Ex ia IIB T4 Ga zone 20: II 1D Ex iaD 20 T 85°C Safety technical maximum values Ui = 28 VDC, Ii = 93 mA, Pi = 660 mW, Ci ≤ 27 nF, Li ≤ 5 µH Max. permissible temperature for environment in zone 0: -20 ... 60 °C for patm 0.8 bar up to 1.1 bar in zone 1 and higher: -25 ... 70 °C Connecting cables (by factory) capacity: signal line / shield also signal line / signal line: 160 pF/m inductance: signal line / shield also signal line / signal line: 1 µH/m Miscellaneous Installation position any Current consumption signal output current: max. 21 mA signal output voltage: max. 5 mA Weight min. 200 g Operational life > 100 x 106 loading cycles CE-conformity EMC-directive: 2004/108/EC ATEX Directive 94/9/EC DMK 351 Technical Data

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