Westlock Controls Position Transmitter, Digital Epic D410/D420
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Digital Epic D410/D420 Position Transmitter

Brand: Westlock
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Position Transmitters that provide discrete position control and precision, non-contact position feedback with digital communication via HART protocol for linear or rotary control valves in a simple, integrated package.
Features
  • Microprocessor based technology allows digital communication via HART protocol
  • Model D410 features remote and local partial stroke test (PST) and emergency shut down (ESD) initiated remotely via HART signal or locally at the device for safety system applications
  • ‘Non-intrusive’ magnetic calibration input sensors on outside of the D410 enclosure allow calibration without removing the cover, maintaining safety in a potentially explosive environment
  • Valve position measurement via a noncontact magnetic sensor eliminates mechanical drive arms or linkages increasing reliability in high cycle applications or where vibration is present
  • Highly visible position indicator
  • Site glass on Model D410 gives view to the product’s LCD display
  • Extra conduit entries and internal terminal points are provided for mounting and backwiring of a solenoid valve
  • Low copper content aluminum enclosure with polyurethane enamel coating assures both strength and corrosion resistance

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Specifications

Brand

Approvals & Certifications

  • ATEX Ex d IIB + H₂, AEx d IIB + H₂, Ex NA IIC, AEx NA IIC
  • IEC Ex d IIB + H₂, AEx d IIB + H₂, Ex NA IIC, AEx NA IIC
  • NEC 500 Class I, Div. 1, Groups B, C, D, Class I, Div. 2, Groups A, B, C, D, Class II, Div. 1, Groups E, F, G, Class III

Communication

  • HART

Conduit Connection

  • 1/2” NPT Male
  • 3/4” NPT Male
  • M20 Male
  • M25 Male

Display

  • LCD Display

Enclosure Finish

  • Aluminum with Powder Coat Finish

Environmental Protection

  • IP66
  • NEMA 4X

Humidity

  • 10 to 90 % Relative Humidity, Non-Condensing

Linearity

  • ± 1 % of Full Scale

Mounting Position

  • Any Orientation

NPT Connection

  • 3/4” NPT Female - Model D410/D420 NEC

Operating Temperature

  • -40° to 85° C (-40° to 185° F)

Output

  • 4-20 mA Proportional to Valve Position

Power Supply Effect

  • Voltage Effect: ≤ 0.2 % of Full Scale from 10-30 Vdc

Resolution

  • ≤ 0.05 % of Full Scale

Reverse Polarity Protection

  • Protected Against Reverse Polarity

Span & Zero Adjustments

  • Span: 60° to 120°
  • Zero: 30 % of Calibration Span

Temperature Effect

  • ≤ 0.01 % of Full Scale/°C

Terminal Voltage

  • 10-30 V

Turn-On Time

  • Startup Stabilization: 0.5 seconds

Update Time

  • Output: 25 milliseconds

Documentation

Data Sheets

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