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SmartLine 4-20mA E+H FMD633 diaphragm differential pressure transmitter
E+H FMD633 Smart4-20mA diaphragm differential pressure transmitter Introduction: Model FMD633 series pressure transmitters are made of BCM 633C capacitive pressure sensors, the transmitters obtain all the specifications of it, and extend the measuring ability to gauge pressure and absolute pressure. These pressure transmitters are often used to measure the differential pressures in mbar scale with rather high accuracy, for differential pressure, gauge pressure and absolute pressure applications, the transmitter can measure them in a very wide range. Thanks to the integrated electronics, output of these pressure transmitters is standard signal of 4-20mA with HART protocol communication. Based on offsetting theory and with help of electronics, the measuring range of these pressure transmitters can be shifted upwards or downwards, extending the measurement to neighboring pressure ranges, including negative pressures which are commonly requested in vacuum world.
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Specifiction Packing
  • Specification: Pressure range 0/1.3-15mbar, , 0/6.9-68.9 bar, D 0/7.5-75 mbar, , 0/41.4-413.7 bar, G 0/37-374 mbar, ..., 0/6.9-68.9 bar, A Accuracy (NL) 0.075%fso; 0.1 %fso; 0.2 %fso; 0.5%fso Output signal 4-20Ma, with HART protocol System pressure 70, 140, 312 bar Construction rigid, welded encapsulation Explosive-proof Exd II CT6 (option) Materials diaphragm 316L Option tantalum, hastelloy-C or monel Housing aluminam metal alloy Flange 316 stainless steel option hastelloy-C or monel Operating temperature range -40~+85C Media temperature range -40~+120C Operating humidity range 0~+100 %RH Temperature effect on zero & span <0.003%fso/C Line pressure effect 0.25 %fso/100 bar (can be modified in tube applications) Vibration effect 0.05 %fso/g/200Hz (any directions) Protection class IP 67