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      1. 產品展示



        • PT850.jpg








        Service intended

        PT850 series are specially designed for the ultra-high purity gas distribution system used in a semiconductor, electronic, medical, biotechnology and pharmaceutical industry. The transmitter has a water resistant, Stainless steel housing for complete protection from harsh environments. The transmitter offers the convenience and easy installation with the full capabilities of a highly accurate 4~20 mA 2-wire system design. The stainless steel surfaces make it compatible with a wide variety of gases and liquids and can be protected from harsh environment. It is extremely versatile and suitable for measuring dynamic or static pressure. The trasnmitters are available as absolute and relative pressure types. The pressure to be measured acts through corrosion resistant stainless steel 316L diaphragm with a piezoresistive resistors which are connected into a Wheatstone bridge. PT850 series pressure transmitter is electrically temperature compensated.

        Technology Piezo resistive effet sensor
        Accuracy ±0.25 % of full scale
        Operating temperature range -20 ~ 80 °C
        Scale range Refer to range code
        Enclosure rating IP 67
        Explosion protection Ex d IIC T6 (Model : PT850)
        Ex ia IIC T4 (Model : PT851)
        Ex nA IIC T4 (Model : PT852)

        Standard features


        Pressure connection Stainless steel 316L electropolished low mount or center back mount surface finish Ra≤0.15 μm
        ■ ¼" NPT male thread
        ■ VCR male or female face seal fitting
        ■ Tube welding
        ■ Flow through type
        ■ Modular surface mount
        Material wetted by process Stainless steel 630 (Sensor)
        Stainless steel 316L (Connection)
        Stainless steel 304 (Housing)


        Standard features


        Input power 12 ~ 24 VDC
        Output signal 4 ~ 20 mA
        DC 2-wire loop powered technique
        Load resistance max 500 ? at 24 V
        Response time (10 ~ 90 %) ≤20 milliseconds