Fairchild Piezo Ceramic Electro-Pneumatic Transducer, Model T7800
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TDFI7800-401

Series: Model T7800 Electro-Pneumatic I/P, E/P Transducer Brand: Fairchild Industrial Products - by Rotork

FAIRCHILD Model T7800 Electro-Pneumatic I/P, E/P Transducer, DIN 43650, FM, Intrinsically Safe, 4-20 mA Input, 3-15 psig Output

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Fairchild Piezo Ceramic Electro-Pneumatic Transducer, Model T7800 Fairchild Piezo Ceramic Electro-Pneumatic Transducer, Model T7800 Fairchild Piezo Ceramic Electro-Pneumatic Transducer, Model T7800 Fairchild Piezo Ceramic Electro-Pneumatic Transducer, Model T7800 Fairchild Piezo Ceramic Electro-Pneumatic Transducer, Model T7800
  • Output Range: 3-15 psig, 0.2-1 bar, 20-100 kPa  
  • Supply Pressure: 20-120 psig, 1.5-8 bar, 150-800 kPa 
  • Electrical Connections: DIN43650 Connection
  • Underwriting Group: Factory Mutual
  • Approval Class: Intrinsically Safe
  • Temperature Range: -40°F to +160°, -40°C to +71.2°C
  • Input: 4-20 mA
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel, Brass
    • Orifice: Nickel Plated Brass, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating

Specifications

Brand

Accuracy

  • 0.15% of Full Scale Typical ISA S51.1
  • 0.25% of Full Scale Guaranteed ISA S51.1

Air Consumption

  • Maximum

Approvals & Certifications

  • ATEX
  • CE
  • CSA
  • FM
  • IEC Ex

BSP Connection

  • 1/4" BSPT Female

Deadband, Approximate

  • 0.02% of Full Scale

Elastomers

  • Nitrile

Electrical Connectors

  • 1/2" NPT Conduit Fitting with Pigtail
  • DIN 43650
  • Rack Mount
  • Terminal Block

Enclosure Finish

  • Epoxy Powder-Coated

Enclosure, Body Material

  • Chromate Treated Aluminum

Environmental Protection

  • Intrinsically Safe
  • Non-Hazardous Area
  • Non-Incendive

Exhaust Capacity - Relieving Units Only

  • 2 scfm (3.4 m³/hour)

Flow Rate

  • 11 scfm (18.7 m³/hour) at psig: 150 (bar: 10, kPa: 1,000) Supply & Midscale Output - Extended Range
  • 2.5 scfm (4.25 m³/hour) at psig: 25 (bar: 1.7, kPa: 170) Supply & psig: 9 (bar: 0.6, kPa: 60) Output
  • 9 scfm (15.3 m³/hour) at psig: 120 (bar: 8, kPa: 800) Supply & psig: 9 (bar: 0.6, kPa: 60) Output

Frequency

  • -3 Db at 2 Hz Per ISA S26.4.3.1 Load Configuration A - for Extended Range
  • -3 Db at 5 Hz Per ISA S26.4.3.1 Load Configuration A

Hysteresis

  • ≤ 0.1% of Full Scale
  • ≤ 0.25% of Full Scale to for Extended Range

Input

  • 4-20 mA
  • Vdc: 0-10
  • Vdc: 0-5
  • Vdc: 1-5
  • Vdc: 1-9

NPT Connection

  • 1/4" NPT Female

Operating Temperature

  • -40° to 71° C (-40° to 160° F)

Operating Voltages

  • 2-Wire Current Input: 7.2 Vdc at 20 mA (4-20 mA Signal)

Orifice Material

  • Nickel-Plated Brass & Sapphire

Output Pressure

  • bar: 0 to 8
  • kPa: 0 to 800
  • psig: 0 to 120

Position Effect

  • 0.125% at 90° & 0.25% at 180° - for Extended Range
  • No Measurable Effect

Relief

  • Relieving

Repeatability

  • ≤ 0.1% of Full Scale

Reverse Polarity Protection

  • No Damage Occurs from Reversal of Normal Supply Current (4-20 mA) or from misapplication of up to 60 mA

RFI/EMI Effect

  • < 0.5% of Span at 30 V/m Class 3 Band ABC (20-1,000 MHz) Per SAMA PMC 33.1 1978 & < 0.5% of Span at 10 V/m Level, to 2 GHz Band Per EN 61,000-4-3:1998 +A1 EMC Directive 89/336/EEC European Norms EN 61326

Signal Impedance

  • 3-Wire Voltage Input: 10 Kilohms

Span - Minimum

  • For Output Range psig: 0 to 120 - psig: 50 (bar: 3.0, kPa: 300)
  • For Output Range psig: 0 to 30 - psig: 12.5 (bar: 0.85, kPa: 85)
  • For Output Range psig: 0 to 60 - psig: 25 (bar: 1.5, kPa: 150)
  • For Output Range psig: 3 to 15 - psig: 5 (bar: 0.35, kPa: 35)
  • For Output Range psig: 3 to 27 - psig: 10 (bar: 0.7, kPa: 70)
  • For Output Range psig: 6 to 30 - psig: 10 (bar: 0.7, kPa: 70)

Span & Zero Adjustments

  • Screwdriver Adjustments Located on Front of Unit

Storage Temperature

  • -40° to 82° C (-40° to 180° F)

Supply Pressure

  • For Output Range psig: 0 to 120: psig: 125 to 150 (bar: 8.8 to 10, kPa: 880 to 1,000)
  • For Output Range psig: 0 to 30: psig: 35 to 150 (bar: 2.5 to 10, kPa: 250 to 1,000)
  • For Output Range psig: 0 to 60: psig: 65 to 150 (bar: 4.6 to 10, kPa: 460 to 1,000)
  • For Output Range psig: 3 to 15: psig: 20 to 120 (bar: 1.5 to 8, kPa: 150 to 800)
  • For Output Range psig: 3 to 27: psig: 32 to 120 (bar: 2.2 to 8, kPa: 220 to 800)
  • For Output Range psig: 6 to 30: psig: 35 to 120 (bar: 2.4 to 8, kPa: 240 to 800)

Supply Pressure Effect

  • > psig: 0.1 (bar: 0.007, kPa: 0.7) Change for psig: 10 (bar: 0.007, kPa: 0.7) Supply Change - for Extended Range
  • No Measurable Effect

Supply Voltage

  • 3-Wire Voltage Input: 7.2-30 Vdc, less than 3 mA

Temperature Effect

  • +0.5% to +0.04% / °F Temperature Change of Span Typical
  • +0.5% to +0.06% / °F Temperature Change of Span Typical - for Extended Range

Trim Material

  • Brass
  • Stainless Steel
  • Zinc-Plated Steel

Vent

  • Straight

Vibration Effect

  • < 1% of Span Under the Following Conditions: 5 to 15 Hz at 0.8" Constant Displacement 15 to 500 Hz at 10 G's

Documentation

Data Sheets

Product Manuals

Application Considerations

Catalogs

Certifications & Approvals

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