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Catalogue Level EN_2016-01

58 LMK 387 Hydrostatic probe Technical data Input pressure range Nominal pressure gauge [bar] 0,1 0,16 0,25 0,4 0,6 1 1,6 2,5 4 6 10 Level [mH2O] 1 1,6 2,5 4 6 10 16 25 40 60 100 Overpressure [bar] 3 4 5 5 7 7 12 20 20 20 20 Berst pressure ≥ [bar] 4 6 8 8 9 9 18 25 25 30 30 Permissible vacuum [bar] -0.2 -0.3 -0.5 -1 Output signal / Supply Standard 2-wire: 4 ... 20 mA / VS = 12 ... 36 VDC Option IS-version 2-wire: 4 ... 20 mA / VS = 14 ... 28 VDC Option 3-wire: 0 … 10 V / VS = 14 ... 36 VDC Performance Accuracy 1 standard: ≤ ± 0.35 % FSO option: ≤ ± 0.25 % FSO others on request Permissible load 2-wire: Rmax = [(VS – VS min) / 0.02 A] Ω Influence effects supply: 0.05 % FSO / 10 V load: 0.05 % FSO / kΩ Long term stability ≤ ± 0.1 % FSO / year Turn-on time 450 msec Mean response time ≤ 70 msec Measuring rate 80 Hz 1 accuracy according to IEC 60770 – limit point adjustment (non-linearity, hysteresis, repeatability) Thermal effects (Offset and Span) Tolerance band [% FSO] ≤ 1.0% FSO in compensated range -20 ... 80 °C Permissible temperatures Permissible temperatures medium: -40 ... 85 °C electronics / environment: -40 ... 85 °C storage: -40 ... 85 °C Electrical protection 2 Short-circuit protection permanent Reverse polarity protection no damage, but also no function Electromagnetic compatibility emission and immunity according to EN 61326 2 additional external overvoltage protection unit in terminal box KL 1 or KL 2 with atmospheric pressure reference available on request Electrical connection Cable outlet shielded cable with integrated air tube for atmospheric reference (for nominal pressure ranges absolute, the air tube is closed) Materials (media wetted) Housing standard: stainless steel 1.4404 (316 L) others on request Cable PVC (-5 … 70 °C) gray PUR (-25 … 70 °C) black FEP3 (-25 … 70 °C) black TPE (-25 …125 °C) blue others on request Seals (O-rings) standard: FKM option: EPDM; FFKM (min. permissible temperature from -15 °C) others on request Diaphragm standard: ceramics Al2O3 96% option: ceramics Al2O3 99,9% Protection cap POM 3 do not use freely suspended probes with an FEP cable if effects due to highly charging processes are expected IS-protection Approval DX14B-LMK 387 IBExU 15 ATEX 1066 X zone 0: II 1G Ex ia IIC T4 Ga zone 20: II 1D Ex ia IIIC T135 °C Da Safety technical maximum values Ui = 28 V, Ii = 93 mA, Pi = 660 mW, Ci = 49,2 nF; Li = 0 µH; the supply connections have an inner capacity of max. 100 nF opposite the enclosure 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 ... 65 °C Connecting cables (by factory) cable capacity: signal line/shield as well as signal line/signal line: 160 pF/m cable inductance: signal line/shield as well as signal line/signal line: 1 µH/m Miscellaneous Current consumption max. 22 mA Weight approx. 180 g (without cable) Ingress protection IP 68 CE-conformity EMC Directive: 2004/108/EC Pin configuration Electrical connection cable colours (IEC 60575) Supply + Supply – signal + (only 3-wire) wh (white) bn (brown) gn (green) Shield gnye (green-yellow) LMK 387 Technical Data www.bdsensors.com Nominal pressure gauge [bar] 0,10,160,250,40,611,62,54610 Level [mH2O] 11,62,5461016254060100 Overpressure [bar] 3455771220202020 Berst pressure ≥ [bar] 4688991825253030

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