Ashcroft Intrinsically Safe and Non-Incendive Pressure Transmitter, Model A4
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Model A4 Intrinsically Safe & Non-Incendive Pressure Transmitter

Brand: Ashcroft Inc

The Ashcroft A4 Pressure Transmitter is ideal for a broad spectrum of pressure sensing requirements where Intrinsically Safe or Non-Incendive hazardous location ratings are required. 

The Ashcroft A4 is designed and manufactured to provide the user with accurate, reliable, and stable output data.

This is accomplished through the use of an on board microprocessor, that is programmed during a unique digital compensation process, to provide extremely linear and precise performance over the entire specified pressure and temperature range.
Features
  • FM and CSA listings 
  • Choice of 0.25%, 0.50% or 1.0% accuracy 
  • Pressure ranges from 5 psi through 10,000 psi 
  • CE mark 
  • 316L stainless steel wetted materials, 17-4 PH optional 
  • 304 stainless steel case in standard, welded or explosion proof construction 
  • Optional absolute pressure ranges available 
  • Zero and span access (basic enclosure) 

Type

Enclosure

Accuracy / Temperature Effects

Pressure Connection

1/8" NPT Female
  • 1/8" NPT Female
  • 1/4" NPT Female
  • 1/2" NPT Female
  • 9/16"-18 (1/4")-Female (Aminco®)
  • 7/16"-20 SAE-Female
  • 1/8" NPT Male
  • 1/4" NPT Male
  • 1/2" NPT Male
  • 7/16"-20 SAE-Male
  • G1/4" Male
  • G1/2" Male
  • 9/16"-18 Male Nut - Compatible 1/4" VCR® Fitting
  • 9/16-18 Female Nut - Compatible 1/4" VCR® Fitting
  • Sanitary Seal 1½" Tri-Clamp®
  • Sanitary Seal 2" Tri-Clamp®

Output Signal

Electrical Termination

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Electrical Termination

Electrical Termination

Electrical Termination

Electrical Termination

Electrical Termination

Electrical Termination

Pressure Range

0 psi/-14.7 psi
  • psi: 1.5
  • psi: 5
  • psi: 10
  • psi: 15
  • psi: 30
  • psi: 50
  • psi: 60
  • psi: 75
  • psi: 100
  • psi: 150
  • psi: 200
  • psi: 300
  • psi: 500
  • psi: 750
  • psi: 1,000
  • psi: 1,500
  • psi: 2,000
  • psi: 3,000
  • psi: 5,000
  • psi: 7,500
  • psi: 10,000
  • 0 psi/-14.7 psi
  • 15 psi/-14.7 psi
  • 30 psi/-14.7 psi
  • 45 psi/-14.7 psi
  • 60 psi/-14.7 psi

Measurement Type

Option

Optional Features

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Part Number / SKU

    Specifications

    Brand

    Accuracy

    • ± 0.25 % of Span
    • ± 0.5 % of Span
    • ± 1 % of Span

    Approvals & Certifications

    • CE
    • CSA
    • FM

    BSP Connection

    • G 1/2" Male

    Burst Pressure

    • 1.5 x Full Scale
    • Minimum 2 x Full Scale of psi: 0 to 300 (kPa: 0 to 2,068, bar: 0 to 20.6)

    Compensated Temperature

    • -20° to 85° C (-4° to 185° F)

    Diaphragm Material

    • 316L Stainless Steel
    • 630 Stainless Steel

    Electrical Connectors

    • 1/2" NPT Male Conduit Connection
    • 4-Pin Bendix
    • Flying Leads
    • Hirschmann Style Form A DIN 43650-A
    • Integral Cable Connector
    • M12 Threaded
    • Pigtail Connector
    • Shielded Cable

    Electrical Protection

    • Reverse Polarity

    Enclosure, Body Material

    • 304 Stainless Steel

    Environmental Protection

    • Explosion-proof
    • Ingress Protection: IP65
    • Ingress Protection: IP67
    • Ingress Protection: NEMA 4X
    • Ingress Protection: NEMA 6
    • IP66

    Humidity

    • 0 to 100 % RH
    • 0 to 95 % RH, Non-Condensing

    NACE & NIST

    • NIST

    NPT Connection

    • 1/2" NPT Female
    • 1/2" NPT Male
    • 1/4" NPT Female
    • 1/4" NPT Male
    • 1/8" NPT Male

    Operating Temperature

    • -40° to 125° C (-40° to 257° F)

    Output

    • 4-20 mA, 2-Wire

    Position Effect

    • ± 0.02 % Typical

    Pressure Cycles

    • Durability: > 10 Million Cycles

    Pressure Range

    • bar: 0 to 689.5
    • kPa: 0 to 68,950
    • psi: 0 to 10,000

    Pressure Type

    • Absolute
    • Gauge

    Process Temperature

    • -40° to 125° C (-40° to 257° F)

    Proof Pressure

    • 1.2 x Full Scale
    • 1.5 x Full Scale

    Response Time

    • < 2 ms

    SAE Connection

    • 7/16"-20 SAE Male

    Sensor, Probe Material

    • 630 Stainless Steel

    Shock

    • 100 G, 11 ms

    Stability

    • ≤ ± 0.25 % of Span/Year

    Storage Temperature

    • -40° to 125° C (-40° to 257° F)

    Supply Voltage

    • Maximum
    • Minimum 12 Vdc

    Temperature Effect

    • ± 1 % of Span for ± 0.25 % Accuracy Class
    • ± 2 % of Span for 0.5 % & 1 % Accuracy Classes

    VCR / VCO Connection

    • 1/4" VCR

    Vibration Effect

    • Random: 10 G RMS, 20 to 2000 Hz
    • Sweep: 5 G Peak, 50 to 2000 Hz

    Wetted Materials

    • 316L Stainless Steel

    • Natural Gas Compressors
    • Oil Field Equipment
    • Transfer Control
    • Upstream Oil & Gas Production

    Documentation

    Data Sheets

    Industry Brochures

    Installation & Maintenance

    Product Information

    Selection Guides

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