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Catalogue Pressure Transmitter

72 www.bdsensors.com DMK 331 Industrial Pressure Transmitter Technical Data Input pressure range 1 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 6002 Nominal pressure abs. [bar] - - 0.6 1 1,6 2,5 4 6 10 16 25 40 60 100 160 250 400 6002 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 1 PVDF pressure port possible for nominal pressure ranges up to 60 bar 2 nominal pressure 600 bar without UL certification 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 Options 3-wire 3-wire: 0 ... 20 mA / VS = 14 ... 30 VDC 0 ... 10 V / VS = 14 ... 30 VDC Performance Accuracy 3 ≤ ± 0.5 % FSO Permissible load current 2-wire: Rmax = [(VS – VS min) / 0.02 A] Ω current 3-wire: Rmax = 500 Ω voltage 3-wire: Rmin = 10 kΩ Influence effects supply: 0.05 % FSO / 10 V load: 0.05 % FSO / kΩ Long term stability ≤ ± 0.3 % FSO / year at reference conditions Response time 2-wire: ≤ 10 msec 3-wire: ≤ 3 msec 3 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 4 medium: -40 ... 125 °C electronics / environment: -40 ... 85 °C storage: -40 ... 100 °C 4 for pressure port of PVDF the minimun temperature is -30 °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 (25 ... 2000 Hz) according to DIN EN 60068-2-6 Shock 500 g / 1 msec according to DIN EN 60068-2-27 Materials Pressure port standard: stainless steel 1.4404 (316 L) optional for G1/2" open port with nominal pressure range up to 60 bar: PVDF others on request Housing stainless steel 1.4404 (316 L) Option compact field housing stainless steel 1.4305 (303) with cable gland brass, nickel plated others on request Seals (media wetted) standard: FKM options: EPDM (for PN ≤ 160 bar), NBR others on request Diaphragm ceramic Al2O3 96 % Media wetted parts pressure port, seals, diaphragm Explosion protection (only for 4 … 20 mA / 2-wire) Approval DX19-DMK 331 IBExU 10 ATEX 1068 X / IECEx IBE 12.0027X stainless steel pressure port: zone 0: II 1G Ex ia IIC T4 Ga zone 20: II 1D Ex ia IIIC T 85°C Da plastic pressure port: zone 1: II 2G Ex ia IIC T4 Ga zone 21: II 2D Ex ia IIIC T 85°C Da Safety technical maximum values Ui = 28 VDC, Ii = 93 mA, Pi = 660 mW, Ci ≈ 0 nF, Li ≈ 0 µH, the supply connections have an inner capacity of max. 27 nF to the housing Permissible temperatures for environment 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 Miscellaneous Option SIL5 2 according to IEC 61508 / IEC 61511 Option oxygen application for PN ≤ 15 bar: O-ring in 70 EPDM 281 (with BAM-approval); permissible maximum values are 15 bar / 60° C and 10 bar / 90° C for PN ≤ 25 bar: O-ring in FKM Vi 567 (with BAM-approval); permissible maximum values are 25 bar / 150° C Current consumption signal output current: max. 25 mA signal output voltage: max. 7 mA Weight approx. 140 g Installation position any Operational life > 100 x 106 pressure cycles CE-conformity EMC Directive: 2004/108/EC Pressure Equipment Directive: 97/23/EC (module A) 6 ATEX Directive 94/4/EG 5 only for 4 … 20 mA / 2-wire 6 This directive is only valid for devices with maximum permissible overpressure > 200 bar DMK 331 Technical Data

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