Intelligent loop display instrument

       HC800N series intelligent circuit display instrument is a process variable digital display instrument, it is used to accept and output 4~20mADC current signal, and through the two-wire circuit to power the display, no external power supply, only need to connect it in series in the measured loop can display the corresponding value of the measured loop, and LCD display accurately. 
       This series of products adopts compact structure design, easy to install; The ultra-low power consumption design of the internal circuit greatly reduces the error caused by the heat dissipation of the components during the operation of the instrument, improves the long-term stability of the product and extends the service life; The measuring range can be adjusted to increase the measuring accuracy of the product; The ambient temperature is -30~+70℃, which can ensure the normal operation of the instrument in the harsh environment.

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    Functional characteristics​    Technical characteristics​    Physical specification​    Physical specification​   Mounting dimension​   Installation mode​

    Functional characteristics

  • Maximum loop pressure drop ≤3.5V;
  • Minimum loop current 2.5mA, the instrument works normally;
  • Unit display and arbitrary setting, can be used with the installation position is high, low or not easy to operate, easy to view the site pressure, temperature, flow, level, volume, mass, speed, density, viscosity and other values;
  • Flow square function (premium version), can be used with all two-wire meters.

    Technical characteristics

  • Boot time: 5 seconds (including self-test and memory integrity check);
  • Update time: < 1 second;
  • Range: adjustable;
  • Display: LCD display;
  • Precision: ±0.1%;
  • Running current: 2.5mA~23mA;
  • Backlight effect: &lt; 0.2%@4mA, no influence @20mA;
  • Input: 4~20mADC two-wire system;
  • Protection grade: IP67;
  • Explosion-proof class：Exd ⅡCT6 Gb；
  • Explosion-proof grade: ExdⅡ CT6Gb;
  • Ambient temperature: -30~+70℃;
  • Ambient humidity: 0~100%;
  • Maximum error: ±0.05% (full scale);
  • Compliance (linearity) : 0.03%;
  • Hysteresis error: 0.03%;
  • Repeatability: 0.03%; 

    Physical specification

  • Outer shell: low copper cast aluminum alloy;
  • Name plate: 304SST;
  • Label: 304SST;
  • Protection grade: IP67;
  • Mounting: Standard 2 "(50 mm) pipe mounting or surface (horizontal or vertical);
  • Electrical connection: ½NPT or M20*1.5; 
  • Time: 5 seconds (including self-test and memory integrity check).

    Physical specification

  • Outer shell: low copper cast aluminum alloy;
  • Name plate: 304SST;
  • Label: 304SST;
  • Protection grade: IP67;
  • Mounting: Standard 2 "(50 mm) pipe mounting or surface (horizontal or vertical);
  • Electrical connection: ½NPT or M20*1.5; 
  • Time: 5 seconds (including self-test and memory integrity check).

   Mounting dimension


   Installation mode

  • Horizontal pipe U-shaped installation
  • L-bracket mounting