Digital Epic D460/D470 Control Transmitter

Brand: Westlock

Discrete position control and precision, non-contact position feedback with digital communication via HART protocol in an explosionproof, integrated package.

With options for linear or rotary control valves and remote PST/ESD initiation.
Features
  • Microprocessor based technology allows digital communication via HART protocol
  • Remote and local partial stroke test (PST) and emergency shut down (ESD) initiated remotely via HART signal for safety system applications
  • Valve position measurement via a non-contact magnetic pick-up eliminates mechanical drive arms or linkages increasing reliability in high cycle applications or where vibration is present
  • Highly visible position indicator
  • Available with low power Falcon solenoid valve
  • Solenoid coils integrated within enclosure
  • Choice of factory pre-wired 3 and 4 way Falcon solenoid valves
  • Solenoid valves with a choice of Cv ratings and coil voltage
  • Model D460 features a low copper aluminum enclosure with powder coat finish
  • Model D470 features a heavy duty stainless steel enclosure

Specifications

Approvals & Certifications

  • ATEX Ex II 2 G Ex d IIC T Gb Tamb - * °C to + * °C, Ex II 2 D Ex Tb IIIC T Db IP6X Tamb - * °C to + * °C
  • IEC Ex II 2 G Ex d IIC T Gb Tamb - * °C to + * °C, Ex II 2 D Ex Tb IIIC T Db IP6X Tamb - * °C to + * °C

BSP Connection

  • 1/4” BSP Female

Coil Voltage

  • Solenoid: 24 Vdc

Communication

  • HART

Conduit Connection

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

Enclosure Finish

  • Aluminum with Powder Coat Finish - Model D460
  • Stainless Steel with Electro-Polished Finish - Model D470

Enclosure, Body Material

  • 316 Stainless Steel
  • Aluminum - Model D460
  • Stainless Steel - Model D470

Environmental Protection

  • Explosion-proof
  • Flameproof
  • IP67
  • IP68

Flow Rate

  • 1.1 Cv

Humidity

  • 10 to 90 % Relative Humidity, Non-Condensing

Linearity

  • ± 1 % of Full Scale

Materials of Construction

  • Hardware: Stainless Steel

Mounting

  • Remote Mounting

Mounting Position

  • Any Orientation

NPT Connection

  • 1/4” NPT Female

Operating Temperature

  • Standard Falcon Valve Operating Temperature: -20° to 85° C (-4° to 185° F)
  • Standard 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

Solenoid Type

  • 3/2-Way
  • 5/2-Way

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
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