R85 Series Mini Transducer

Brand: ASCO

The R85 Series I/P, E/P transducers are a series of compact electronic pressure regulators that convert an electrical signal (current or voltage) to a proportional pneumatic output. Utilizing internal solidstate feedback circuitry, the R85 provides precise, stable pressure outputs to final control elements. Immunity to the effects of vibration or mounting position, high tolerance to impure air, and low air consumption make this unit ideal for use in demanding applications. The heart of this unique technology is a bimorph piezo actuator that is encapsulated in a protective skin. This protective skin provides defense against the humidity and contaminant often found in process operating environments.
  • Output Signal: 4-20 mA, 0 to 10 Vdc, 0 to 5 Vdc
  • Supply Voltage: 7 to 30 Vdc
  • Pressure Range: 2 to 100 psi, (0.14 to 6.89 bar, 13.79 to 689.5 kPa)
  • Environmental Protection: Nema 4X - IP65
  • Electrical Connections: 1/2" NPT
  • Process Connection: 1/4" NPT
  • Temperature Range:
    • Ambient: -40° to 85° C (-40° to 185° F)
    • Process: -40° to 120° C (-40° to 248° F)
  • Materials of Construction:
    • Housing: Low Copper cast aluminnum alloy with polyurethane mint green paint
    • O-Rings: Buna-N, Flouro-rubber
    • Fill Fluid: Silicone, Flourinated oil

Specifications

Brand

Accuracy

  • ± 0.10% of Span

Air Consumption

  • 1.5 scfh 0.04 m³/hour at Midrange Typical

Approvals & Certifications

  • CE

BSP Connection

  • G 1/4" Female (BSPP)

Elastomers

  • Buna-N

Electrical Connectors

  • 1/2" NPT Conduit Fitting with Pigtail
  • DIN 43650

Enclosure, Body Material

  • Chromate Treated Aluminum

Environmental Protection

  • IP65
  • NEMA 4X / IP65

Flow Capacity

  • 12 scfm (20 m³/hour) at psig: 100 (bar: 7, kPa: 700) Supply
  • 4.5 scfm (7.6 m³/hour) at psig: 25 (bar: 1.7, kPa: 170) Supply

Input

  • 0-10 Vdc
  • 0-5 Vdc
  • 4-20 mA

Mounting

  • 2" (50.8 mm) Pipe
  • DIN Rail
  • Panel
  • Wall Mounted

NPT Connection

  • 1/4" NPT Female

Operating Temperature

  • -40° to 71° C (-40° to 160° F)

Output Pressure

  • bar: 0.14 to 6.89
  • kPa: 13.79 to 689.4
  • psig: 2 to 100

Relief

  • Relieving

Signal Impedance

  • 7-30 Vdc, less than 3 mA

Storage Temperature

  • -40° to 93° C (-40° to 200° F)

Supply Pressure - Maximum

  • bar: 7
  • kPa: 700
  • psig: 100

Trim Material

  • Brass
  • Stainless Steel
  • Zinc-Plated Steel

Documentation

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