WIKA 891.34.2189 DELTA-trans

帶LED顯示高靜壓兩線差壓變送器

Differential Pressure Transmitter
Model 891.34.218

    Design and operating principle
    The differential pressure transmitter consists mainly of a
mechanical measuring system （1） with elastic pressureelement （2）, magnetic-field-dependent sensor （3） with signal processing board （4） and case with the connecting parts for the electronics.
    A magnet （5） rigidly coupled to the pressure element influences the electromagnetic field of the HALL sensor. The resulting signal is amplified to a standard output signal via the signal processing board.
    For recalibration, zero and span can be adjusted by means
of easily accessable potentiometers （6）.1）
    Pressure entries identified,
    j high pressure, i low pressure

   Illustration of operating principle

   1） Restriction: If an LCD display is integrated, it must be noted that the zero point and span adjustment is to be used only for recalibration of the measuring range. Changes of the measuring range made by the user by means of the zero and span adjustment will not be taken into account by the display. If zero / span adjustments are to be applied during use, we recommend a display 0 ... 100 %.

   Position of the potentiometer
   The potentiometers are accessible after unscrewing the screw plugs
in the top of the casing.

  Connection details
   The terminal 1 and 5 are briged internally in the terminal box providing two terminals for the 0 V / S - connection.

   Dimensions in mm
    Standard version

    Option LCD-display

Option                    Option Integrated             Option
Panel mounting          pressure equalising valve        4-way valve manifold

    Ordering information
    Model / Measuring range / Output signal / Process connection / Material of media chamber / Material of seperation diaphragm and sealings / Options

咨詢訂購WIKA 891.34.2189 DELTA-trans 帶LED顯示高靜壓兩線差壓變送器

: 56291930

：sales@zoriver.cn

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