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Catalogue Pressure Switch

26 www.bdsensors.com DS 202 Electronic Pressure Switch Technical Data Input pressure range Nominal pressure gauge [bar] 6 10 16 25 40 60 100 160 250 400 600 Overpressure [bar] 14 35 35 70 140 140 350 350 700 1200 1200 Burst pressure ≥ [bar] 35 85 85 175 350 350 850 850 1750 2800 2800 Vacuum resistance unlimited Contact 1 Number, type standard: 1 PNP contact option: 2 independent PNP contacts 4 independent PNP contacts (possible with M12x1 8-pin for 4 … 20 mA / 3-wire) 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 ≤ ± 0.5 % FSO Repeatability ≤ ± 0.1 % FSO Switching frequency max. 10 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 = 19 ... 30 VDC permissible load: Rmax = 500 kΩ adjustable (turn-down of span up to 1:5) 3 3-wire voltage signal 0 … 10 V / VS = 15 ... 36 VDC permissible load: Rmin = 10 kΩ without analogue output VS = 15 ... 36 VDC Accuracy 2 ≤ ± 0.5 % 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) Thermal error ± 0.3 % FSO / 10 K in compensated range 0 … 70 °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 (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 1.4571 (316 Ti) Housing stainless steel 1.4404 (316 L) Display housing PA 6.6, polycarbonate Seals (media wetted) none (welded) Diaphragm stainless steel 1.4542 (17-4PH) Media wetted parts pressure port, diaphragm Explosion protection (only for 4 … 20 mA / 2-wire) Approval AX14-DS 202 IBExU 06 ATEX 1050 X Zone 1: II 2G Ex ia IIC T4 Gb (connector) / II 2G Ex ia IIB T4 Gb (cable) Safety technical maximum values Ui = 28 V, Ii = 93 mA, Pi = 660 mW, Ci ≈ 0 nF, Li ≈ 0 µH Max. switching current 4 70 mA (max. permissible inductivity: 4.7 mH) Permissible temperatures for environment -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: 1 µH/m 4 the real switching current in the application depends on the power supply unit DS 202 Technical Data

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