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Fairchild Electro-Pneumatic Transducer, Model TXI7800

Model TXI7800 High Precision I/P Pressure Transducer

Brand: Fairchild Industrial Products
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Fairchild Electro-Pneumatic Transducer, Model TXI7800 Fairchild Electro-Pneumatic Transducer, Model TXI7800 Fairchild Electro-Pneumatic Transducer, Model TXI7800
Designed for use in hazardous environments, the Rotork Fairchild TXI7800 series product is an explosion proof I/P pressure transducer.

It operates under the same principles as the T7800 product; however the TXI series includes NEMA 4X explosion proof construction.

Our design isolates the electronics chamber from the pneumatic section, thereby creating a safer and longer service life product, especially for applications handling natural gas.

In the Extended Range units, the TXI7800 series will also deliver up to 0-120 psi [0-8.0 BAR], (0-800 kPa) output. 

The TXI7800 series is approved for hazardous use and carries FM. CSA, ATEX and IECEx approvals.
Features
  • 18 available output ranges
  • Accuracy as low as 0.15%
  • Field selectable outputs in three pressure ranges
  • Field reversible feature
  • Does not contain copper-based metals
  • Optional version approved for use with Natural Gas or Industrial Methane supply media
  • Explosion-proof NEMA 4X, IP65, Type 4 enclosure
  • Canadian Registration Numbers (CRN) certifications
  • FM, CSA, ATEX and IECEx approvals

1 - 12 of 173 Part Numbers
T5700-4-0
T5700-4-0
FAIRCHILD Model T7900I/P Transducer, 4-20 / 10-50 mA Input, 3-15 psi Output
TAXI7800-401E
TAXI7800-401E
FAIRCHILD Model TXI7800 I/P Transducer, 4-20 mA / 3-15 psi
TCXI7800-401
TCXI7800-401
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 3-15 psig Output
  • Output Range: 3-15 psig, 0.2-1 bar, 20-100 kPa
  • Conduit Fitting: 1/2" NPT
  • Supply Pressure: 20-120 psig, 1.5-8 bar, 150-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating
TCXI7800-401E
TCXI7800-401E
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 3-15 psig Output, Tapped Exhaust
  • Output Range: 3-15 psig, 0.2-1 bar, 20-100 kPa
  • Supply Pressure: 20-120 psig, 1.5-8 bar, 150-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Options:
    • Tapped Exhaust
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating
TCXI7800-401E-R
TCXI7800-401E-R
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, 4-20 mA / 3-15 psi, Refurbish
TCXI7800-401E2
TCXI7800-401E2
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 3-15 psig Output, Tapped Exhaust, Natural Gas Service (R2000 Panel)
  • Output Range: 3-15 psig, 0.2-1 bar, 20-100 kPa
  • Conduit Fitting: 1/2" NPT
  • Supply Pressure: 20-120 psig, 1.5-8 bar, 150-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Options:
    • Tapped Exhaust
    • Natural Gas Media Approval, Closed Nipple 

  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating

TCXI7800-401EN
TCXI7800-401EN
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 3-15 psig Output, Tapped Exhaust, Natural Gas Service (Hex Nipple)
  • Output Range: 3-15 psig, 0.2-1 bar, 20-100 kPa
  • Conduit Fitting: 1/2" NPT
  • Supply Pressure: 20-120 psig, 1.5-8 bar, 150-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Options:
    • Tapped Exhaust
    • Natural Gas media approval, Group D gases (Includes Nipple; TCXI, TEXI, TFXI only)
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating
TCXI7800-402
TCXI7800-402
  • Underwriting Group - CSA - Canadian Standards Association
  • Temperature Range - -40° to 71° C (-40° to 160° F)
  • Input - 4-20 mA
  • Outputs - psig: 3 to 27
  • Exhaust Port - Straight Exhaust
  • Approval Class - Instrument Air Only
  • Port Thread - NPT
TCXI7800-402E
TCXI7800-402E
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 3-27 psig Output, Tapped Exhaust
  • Output Range: 3-27 psig, 0.2-1.8 bar, 20-180 kPa
  • Counduit Fitting: 1/2" NPT
  • Supply Pressure: 32-120 psig, 2.2-8 bar, 220-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Options:
    • Tapped Exhaust
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating
TCXI7800-402EN
TCXI7800-402EN
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 3-27 psig Output, Tapped Exhaust, Natural Gas Service (Hex Nipple)
  • Output Range: 3-27 psig, 0.2-1.8 bar, 20-180 kPa
  • Conduit Fitting: 1/2" NPT
  • Supply Pressure: 32-120 psig, 2.2-8 bar, 220-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Options:
    • Tapped Exhaust
    • Natural Gas media approval, Group D gases (Includes Nipple; TCXI, TEXI, TFXI only)
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating
TCXI7800-403
TCXI7800-403
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 6-30 psig Output
  • Output Range: 6-30 psig, 0.4-2 bar, 40-200 kPa
  • Conduit Fitting: 1/2" NPT
  • Supply Pressure: 35-120 psig, 2.4-8 bar, 240-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating
TCXI7800-403E
TCXI7800-403E
FAIRCHILD Model TXI7800 Explosion-Proof Transducer, CSA, 4-20 mA Input, 6-30 psig Output, Tapped Exhaust
  • Output Range: 6-30 psig, 0.4-2 bar, 40-200 kPa
  • Conduit Fitting: 1/2" NPT
  • Supply Pressure: 35-120 psig, 2.4-8 bar, 240-800 kPa
  • Underwriting Group: Canadian Standards
  • Temperature Range: -40°F to +160°F, -40°C to +71.2°C
  • Input: 4-20 mA
  • Options:
    • Tapped Exhaust
  • Materials of Construction:
    • Body & Housing: Chromate Treated Aluminum
    • Trim: Zinc Plated Steel, Stainless Steel
    • Orifice: Aluminum, Sapphire
    • Elastomers: Nitrile
    • Finish: Epoxy Powder Coating
1 - 12 of 173 Part Numbers

View_Details

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

  • Natural Gas Media Approval, Group D Gases

Approvals & Certifications

  • ATEX
  • CE
  • CSA
  • FM

BSP Connection

  • 1/4” BSPT Female

Cable Length

  • 100 feet (30 metres)
  • 19.69 feet (6 metres)
  • 50 feet (15.2 metres)

Deadband, Approximate

  • ≤ 0.02 % of Full Scale

Elastomers

  • Nitrile

Electrical Connectors

  • 1/2” NPT

Enclosure Finish

  • Epoxy Powder-Coated

Enclosure, Body Material

  • Chromate Treated Aluminum

Environmental Protection

  • Explosion-proof
  • Intrinsically Safe
  • IP66
  • NEMA 4X

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

Hysteresis

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

Input

  • 4-20 mA
  • mA DC: 4-20

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)
  • 7.2 Vdc at 20 mA (4-20 mA Signal)

Orifice Material

  • Brass
  • Sapphire

Output Pressure

  • psig: 0 to 120
  • psig: 0 to 30
  • psig: 0 to 60
  • psig: 3 to 15
  • psig: 3 to 27
  • psig: 6 to 30

Position Effect

  • 0.125 % at 90° & 0.25 % at 180° - for Extended Range

Relief

  • Relieving

Repeatability

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

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 0 to 120 psig: 50 psig (3 bar, 300 kPa) to Extended Range
  • For Output Range 0 to 30 psig: 12.5 psig (0.85 bar, 85 kPa) to Extended Range
  • For Output Range 0 to 60 psig: 25 psig (1.5 bar, 50 kPa) to Extended Range
  • 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)

Storage Temperature

  • -40° to 82° C (-40° to 180° F)

Supply Pressure

  • For Output Range 0 to 120 psig: 125 to 150 psig (8.8 to 10 bar, 880 to 1,000 kPa) to Extended
  • For Output Range 0 to 30 psig (0 to 2 bar, 0 to 200 kPa): 35 to 150 psig (2.4 to 10 bar, 240 to 1,000 kPa) to Extended
  • For Output Range 0 to 60 psig: 65 to 150 psig (4.6 to 10 bar, 460 to 1,000 kPa) to Extended
  • For Output Range 3 to 27 psig (0.2 to 1.8 bar, 20 to 180 kPa), 32 to 120 psig (2.2 to 8 bar, 220 to 800 kPa)
  • For Output Range psig: 3 to 15: psig: 20 to 120 (bar: 1.5 to 8, kPa: 150 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

  • Less than 0.1 psig (0.7 kPa, 0.007 bar) Change for 10 psig (0.7 kPa, 0.007 bar) 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 +0.06 %/°F Temperature Change of Span Typical for Extended Range

Trim Material

  • Brass
  • Stainless Steel
  • Zinc-Plated Steel

Vent

  • Straight
  • Tapped Exhaust

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 - Extended

Documentation

Data Sheets

Catalogs

Certifications & Approvals

Installation Instructions

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