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Catalogue Level EN_2016-01

94 LMK 331 Technical Data www.bdsensors.com LMK 331 Screw-In Transmitter Technical Data Input pressure range Nominal pressure gauge [bar] 0.4 0.6 1 1.6 2.5 4 6 10 16 25 40 1 60 1 Level [mH2O] 4 6 10 16 25 40 60 100 160 250 400 600 Overpressure [bar] 1 2 2 4 4 10 20 20 40 40 100 200 Burst pressure [bar] 2 4 4 5 7,5 12 25 30 50 50 120 250 Vacuum resistance [bar] PN ≥ 1 bar: unlimited vacuum resistance PN < 1 bar: on request 1 only possible with stainless steel pressure port Output signal / Supply Standard 2-wire: 4 ... 20 mA / VS = 8 ... 32 VDC SIL-version: VS = 14 … 28 VDC Option IS-protection 2 2-wire: 4 ... 20 mA / VS = 10 ... 28 VDC SIL-version: VS = 14 … 28 VDC Optionen 3-wire 3-wire: 0 ... 20 mA / VS = 14 ... 30 VDC 0 ... 10 V / VS = 14 ... 30 VDC 2 IS-protection not possible with plastic pressure port 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 Response time 2-wire: ≤ 10 msec 3-wire: ≤ 3 msec Long term stability ≤ ± 0,3 % FSO / year at reference conditions 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 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 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 / housing standard: options for PN ≤ 25 bar: pressure port housing stainless steel 1.4404 (316L) PVDF stainless steel 1.4404 (316L) PVDF Option compact field housing stainless steel 1.4305 with cable gland brass nickel plated others on request Seals standard: FKM options: EPDM others on request Diaphragm ceramics Al2O3 96 % Media wetted parts pressure port, seals, diaphragm Explosion protection (only for 4 ... 20 mA / 2-wire) Approval DX19-LMK 331 only for stainless steel pressure port IBExU 10 ATEX 1068 X / IECEx IBE 12.0027X zone 0: II 1G Ex ia IIC 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 ≈ 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: -25 ... 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: 1 µH/m Miscellaneous Option SIL 2 application according to IEC 61508 / IEC 61511 Current consumption signal output current: max. 25 mA signal output voltage: max. 7 mA Weight approx. 150 g Installation position any Operational life > 100 x 106 pressure cycles CE-conformity EMC Directive: 2004/108/EC ATEX Directive 94/9/EG Nominal pressure gauge [bar] 0.40.611.62.546101625401 601 Level [mH2O] 461016254060100160250400600 Overpressure [bar] 122441020204040100200 Burst pressure [bar] 24457,51225305050120250

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