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Catalogue Pressure Transmitter

27 www.bdsensors.com DMP 331Pi Technical Data DMP 331Pi Precision Pressure Transmitter Technical Data Materials Pressure port stainless steel 1.4404 (316 L) others on request Housing stainless steel 1.4404 (316 L) Option compact field housing stainless steel 1.4305 (303), cable gland brass, nickel plated others on request Seals (O-ring) standard: FKM (recommended for medium temperatures ≤ 200 °C) option: FFKM (recommended for medium temperatures > 200 °C) others on request clamp and dairy pipe: without Diaphragm standard: stainless steel 1.4435 (316L) option: Hastelloy® C-276 (2.4819) and Tantalum on request Media wetted parts pressure port, diaphragm Explosion protection (only for 4 ... 20 mA / 2-wire) Approval DX19-DMP 331Pi IBExU 10 ATEX 1068 X zone 0: II 1G Ex ia IIC T4 Ga zone 20: II 1D Ex iaD 20 T 85 °C Safety technical max. 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 Max. permissible temperature -20 ... 65 °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 Current consumption signal output current: max. 25 mA signal output voltage: max. 7 mA Weight approx. 200 g Installation position any 10 Operational life > 100 x 106 pressure cycles CE-conformity EMC Directive: 2004/108/EC 10 Pressure transmitters are calibrated in a vertical position with the pressure connection down. If this position is changed on installation there can be slight deviations in the zero point for pressure ranges PN ≤1 bar. Wiring diagrams 2-wire-system (current) 3-wire-system (voltage) Pin configuration Electrical connections ISO 4400 Binder 723 (5-pin) Binder 723 (7-pin) M12x1/ metal (4-pin) field housing cable colours (DIN 47100) Supply + Supply – Signal + (only for 3-wire) 1 2 3 3 4 1 3 1 6 3 1 - IN + IN – OUT + wh (white) bn (brown) gr (green) shield ground pin 5 2 4 ye/gn yellow / green Communication interface 11 RxD TxD GND - - - - - - 4 5 7 - - - - - - - - - 11 may not be connected directly with the PC (the suitable adapter is available as accessory) Electrical connections (dimensions in mm) standard option ISO 4400 Binder 723 Binder 723 M12x1 field housing cable outlet 12 cable outlet 13 , with (IP 65) 5-pin (IP 67) 7-pin (IP 67) 4-pin (IP 67) (IP 67) PVC cable (IP 67) ventilation tube (IP 68) 12 standard: 2 m PVC cable (without ventilation tube, permissible temperature: -5 ... 70 °C) 13 different cable types and lengths available, permissible temperature depends on kind of cable supply + signal + VS V p U supply – (for cable-Ø 2 up to 8 mm) p supply + supply – VS I

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