METSO ND9103HX

  • Product Name:​ Intelligent Electro-Pneumatic Valve Positioner (Neles ND9000 Family)
  • Manufacturer:​ Metso Neles (currently Valmet Flow Control), Finland
  • Model Breakdown:​ ND = Neles Digital, 91 = platform, 03 = single-acting base, H = HART, X = variant package
  • Product Category:​ Smart valve controller for pneumatic and linear actuators
Category:
Description
  • Product Introduction:​ Microprocessor-based positioner receiving 4-20 mA + HART and converting it into pilot pressure that positions a pneumatic actuator. Provides continuous diagnostics on valve friction, air consumption, and step response.
  • Technical Specifications:
    • Microcontroller:​ 32-bit ARM RISC
    • Memory:​ 256 kB RAM, 1 MB Flash (100k write cycles)
    • Input Signal:​ 4-20 mA with HART 6/7
    • Supply:​ 30 VDC max loop, 1.4-7 bar pilot air
    • Accuracy:​ ≤ 0.5 % of span
    • Communication:​ HART, optional Profibus PA, Foundation Fieldbus
    • Enclosure:​ Die-cast aluminum or 316SS, IP66
    • Display:​ LCD with 4-key local user interface
    • Temperature:​ -40 °C to +80 °C ambient
  • Functional Features:
    • Auto calibration and characterization (5 control curves)
    • Adaptive gain tuning
    • Partial stroke testing
    • Embedded trend logging of friction, supply pressure, stem velocity
    • Local lock-out of keypad
  • Application Scenarios:​ Pulp and paper digester valves, mining slurry isolation ball valves, petrochemical cracker control valves, power plant feedwater gates.
  • Material & Structure:​ Epoxy-painted aluminum body, 316SS stem and bracket options, double-coated PCB, independent communication and control boards, integral piezoelectric pressure sensors.
  • Working Principle:​ Loop current sets target position; ARM core compares to actual stem angle from magnetic sensor; adjusts pre-stage solenoid current; pilot pressure shifts spool; actuator moves until feedback matches setpoint.
  • Installation Requirements:​ Mount on Namur VDI/VDE 3845 bracket; 1/4 NPT air connections with 5 µm filtered dry air; ground shield at DCS end; orientation within 360° allowed but avoid downward conduit opening without drip loop.
  • Usage Notes:​ Perform auto-tune after actuator maintenance; do not exceed 7 bar supply; HART address must be unique on multicast; replace desiccant if lens fogs.
Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “METSO ND9103HX”

Your email address will not be published. Required fields are marked *

Shipping and Delivery

MAECENAS IACULIS

Vestibulum curae torquent diam diam commodo parturient penatibus nunc dui adipiscing convallis bulum parturient suspendisse parturient a.Parturient in parturient scelerisque nibh lectus quam a natoque adipiscing a vestibulum hendrerit et pharetra fames nunc natoque dui.

ADIPISCING CONVALLIS BULUM

  • Vestibulum penatibus nunc dui adipiscing convallis bulum parturient suspendisse.
  • Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
  • Diam parturient dictumst parturient scelerisque nibh lectus.

Scelerisque adipiscing bibendum sem vestibulum et in a a a purus lectus faucibus lobortis tincidunt purus lectus nisl class eros.Condimentum a et ullamcorper dictumst mus et tristique elementum nam inceptos hac parturient scelerisque vestibulum amet elit ut volutpat.