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Catalogue Pressure Switch

6 www.bdsensors.com DS 400 Electronic Pressure Switch Technical Data Input pressure range Nominal pressure gauge / abs. [bar] -1 … 0 0.10 0.16 0.25 0.40 0.60 1 1.6 2.5 4 6 Overpressure [bar] 5 0.5 1 1 2 5 5 10 10 20 40 Burst pressure [bar] 7.5 1.5 1.5 1.5 3 7.5 7.5 15 15 25 50 Nominal pressure gauge / abs. [bar] 10 16 25 40 60 100 160 250 400 600 Overpressure [bar] 40 80 80 105 210 210 600 1000 1000 1000 Burst pressure [bar] 50 120 120 210 420 420 1000 1250 1250 1250 Vacuum resistance PN ≥ 1 bar: unlimited vacuum resistance PN < 1 bar: on request Contact 1 Number, type standard: 1 PNP contact option: 2 independent PNP contacts Max. switching current 4 ... 20 mA / 2- and 3-wire: contact rating 125 mA, short-circuit resistant; Vswitch = VS − 2V 0 ... 10 V / 3-wire: contact rating 500 mA, short-circuit resistant Accuracy of contacts 2 ≤ ± 0.25 % FSO Repeatability ≤ ± 0.1 % FSO Switching frequency 2-wire: max. 10 Hz / 3-wire: 50 Hz Switching cycles > 100 x 106 Delay time 0 ... 100 sec 1 with IS-protection max. 1 contact possible Analogue output (optionally) / Supply 2-wire current signal 4 ... 20 mA / VS = 13 ... 36 VDC permissible load: Rmax = [(VS – VS min) / 0.02 A] Ω response time: < 10 msec 2-wire current signal with IS-protection 4 ... 20 mA / VS = 13 ... 28 VDC permissible load: Rmax = [(VS – VS min) / 0.02 A] Ω response time: < 10 msec 3-wire current signal 4 ... 20 mA / VS = 24 VDC ± 10 % adjustable (turn-down of span 1:5) 3 permissible load: Rmax = 500 Ω response time: < 30 msec 3-wire voltage signal 0 … 10 V / VS = 24 VDC ± 10 % adjustable (turn-down of span 1:5) 3 permissible load: Rmin = 10 kΩ response time: < 30 msec Without analogue output VS = 15 ... 36 VDC Accuracy 2 standard: nominal pressure < 0,4 bar: ≤ ± 0,5 % FSO nominal pressure ≥ 0,4 bar: ≤ ± 0,35 % FSO option: nominal pressure ≥ 0,4 bar: ≤ ± 0,25 % FSO 2 accuracy according to IEC 60770 – limit point adjustment (non-linearity, hysteresis, repeatability) 3 with turn-down of span the analogue signal is adjusted automatically to the new measuring range Thermal effects (Offset and Span) Nominal pressure PN [bar] -1 … 0 < 0.40 ≥ 0.40 Tolerance band [% FSO] ≤ ± 0.75 ≤ ± 1 ≤ ± 0.75 in compensated range [°C] -20 ... 85 0 ... 70 -20 … 85 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 (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 stainless steel 1.4404 (316L) Housing stainless steel 1.4404 (316L) Viewing glass laminated safety glass Seals (media wetted) standard: FKM option: NBR; welded version 4 on request others on request Diaphragm stainless steel 1.4435 (316 L) Media wetted parts pressure port, seals, diaphragm 4 welded version only for pressure ports according to EN 837; possible for nominal pressure ranges PN ≤ 40 bar Explosion protection (only for 4 … 20 mA / 2-wire) Approval AX14-DS 400 IBExU 06 ATEX 1050 X Zone 0: II 1G Ex ia IIC T4 Ga (connector) / II 1G Ex ia IIB T4 Ga (cable) Safety techn. maximum values Ui = 28 V, Ii = 93 mA, Pi = 660 mW, Ci ≈ 0 pF, Li ≈ 0 µH Max. switching current 5 70 mA Permissible temperatures for environment in zone 0: -20 ... 60 °C with patm 0.8 bar up to 1.1 bar in zone 1: -25 ... 70 °C Connecting cables (by factory) cable capacitance: signal line/shield also signal line/signal line: 100 pF/m cable inductance: signal line/shield also signal line/signal line: 1 µH/m 5 the real switching current in the application depends on the power supply unit DS 400 Technical Data

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