4080/4480 Pneumatic Transmitter

Part Number: TYPE 4080/4480 Brand: Ashcroft Inc.
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Providing plus-values which will coordinate key functional areas in your plant, this Ashcroft pneumatic transmitter serves pressure applications throughout all industries. A positive report of process fluid and media performance is provided at designated operational check points by a signal accurately transmitted with maximum efficiency, assuring operating economies and safety. 

The Ashcroft transmitter is a self-nulling motion-balance instrument, using a pneumatic relay operating on the nonbleed force balance principle for converting input pressures into proportional low air pressure signals for transmittal to remote indicators or controllers.
Features
  • Transmission distance: 1000 feet

Specifications

Accuracy

  • ± 0.5% of Span - 4480
  • ± 1% of Span - 4080

Air Consumption

  • 0.1 scfm (2.8 L/minute)

Air Supply

  • psi: 18 to 20 (kPa: 124.1 to 137.9, bar: 1.241 to 1.379) for 3-15 psi Range
  • psi: 30 to 35 (kPa: 206.8 to 241.3, bar: 2.068 to 2.413) for 3-27 psi Range

Applications

  • System Measurements & Control

Approvals & Certifications

  • ISO 9001

Distance

  • Transmission Distance: 1,000 feet (304.8 meters)

Element

  • Input Sensing Element Material: 316 Stainless Steel

Materials of Construction

  • Bourdon Tube: 316 Stainless Steel

NPT Connection

  • 1/2" NPT Male (Lower)
  • Air: 1/4" NPT Female

Output

  • bar: 0.2 to 1.86
  • kPa: 20.68 to 186.2
  • psi: 3 to 27

Pressure Range

  • bar: 0 to 1,379
  • Inches Hg: -30 to 0
  • kPa: 0 to 137,900
  • psi: 0 to 20,000

Pressure Type

  • Compound Pressure
  • Gauge
  • Vacuum

Repeatability

  • 0.15% of Span

Sensitivity

  • ± 0.001% of Span - 4480
  • ± 0.1% of Span - 4080

Temperature Effect

  • Ambient Temperature Effect: 1/2% Per 27.8° C (50° F)

Time Constant

  • Speed of Response: 4 seconds Per 500 feet of Tubing
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