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AT30 Skin Type Thermocouple

Brand: Ashcroft Inc
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The Ashcroft AT30 skin type thermocouple assembly provides accurate surface and wall temperature measurements for applications that are located in hazardous environments.

Each thermocouple assembly consists of a spring loaded thermocouple, magnesium oxide, MgO, insulated insert, a connection head, lag extension, expansion loop, and weldable sensor.

The assembly may also include an optional terminal block for wiring and/or transmitters.

Thermocouple assemblies are manufactured to either to IEC 60584-2 or ANSI MC 96.1.
Features
  • Weldable sensor head
  • Available with and without transmitters
  • Integrated expansion loop allows for expansion and contraction within temperature changes
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The Ashcroft AT30 skin type thermocouple assembly provides accurate surface and wall temperature measurements for applications that are located in hazardous environments.

Each thermocouple assembly consists of a spring loaded thermocouple, magnesium oxide, MgO, insulated insert, a connection head, lag extension, expansion loop, and weldable sensor.

The assembly may also include an optional terminal block for wiring and/or transmitters.

Thermocouple assemblies are manufactured to either to IEC 60584-2 or ANSI MC 96.1.
Features
  • Weldable sensor head
  • Available with and without transmitters
  • Integrated expansion loop allows for expansion and contraction within temperature changes
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Specifications

Brand

Stem Length

  • 2 to 3,937” (0.05 to 100 metres)

Cable Entry

  • With Cable Gland: M20 x 1.5
  • With Cable Gland: PG16
  • Without Cable Gland, with Ex d Cable Gland for Non-Shielded Cable or Shielded Cable: 1/2” NPT
  • Without Cable Gland: 3/4” NPT

Environmental Protection

  • IP66
  • IP67
  • IP68

Electrical Connectors

  • Ceramic Terminal Block

Diameter

  • Knife Edge: 2 to 10” (0.05 to 0.254 metres)
  • Stem: 0.23” (6 mm)
  • Stem: 0.314” (8 mm)
  • Stem: 0.375” (9.5 mm)

Enclosure, Body Material

  • Head: 316 Stainless Steel
  • Head: Aluminum Alloy

Sensor, Probe Type

  • J Thermocouple, -40° to 750° C (-40° to 1,382° F)
  • K Thermocouple -200° to 1,100° C (-328° to 2,012° F)

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# ANSI
  • 1” (DN 25) - 300# ANSI
  • 1” (DN 25) - 600# ANSI

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# ANSI
  • 1-1/2” (DN 40) - 300# ANSI
  • 1-1/2” (DN 40) - 600# ANSI

Mounting

  • Head Mount
  • Head: 1/2” NPT Female
  • Head: 3/4” NPT Female
  • Sensor

NPT Connection

  • 1-1/2” NPT Male

Stem Material

  • 316 Stainless Steel
  • AISI 466 Stainless Steel
  • Inconel 600

Sensor, Probe Connection

  • 2-Wire

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ANSI
  • 2” (DN 50) - 300# ANSI
  • 2” (DN 50) - 600# ANSI

Name Plate, Tag Material

  • Metal

Approvals & Certifications

  • Calibration
  • ATEX: Ex d IIC T6 Gb (EN/IEC 60079-1), Ex ia IIC T6 Ga (EN/IEC 60079-11)
  • IEC Ex: Ex d IIC T6 Ga (EN/IEC 60079-1), Ex ia IIC T6 Ga (EN/IEC 60079-11), 60584-2

Accuracy

  • Class 1, Typical J & K: ± 1.5° C (± 2.7° F) or Absolute ± 0.0040° C (± 0.0072° F)
  • Class 2 Typical J & K: ± 2.5° C (± 4.5° F) or Absolute ± 0.0075° C (0.0135° F)
  • Class 3 Typical K: ± 2.5° C (± 4.5° F) or Absolute ± 0.0040° C (0.0072° F)
  • Standard Typical J & K: ± 2.2° C (± 3.96° F) or Absolute 0.0075° C (0.0135° F)
  • Typical J & K: ± 1.1° C (± 1.98° F) or Absolute 0.0040° C (0.0072° F)

Length

  • Length to Expansion Loop: 7.9 to 1,771” (0.2 to 45 metres)
  • Length to Weld Pad: 2 to 393” (0.05 to 10 metres)
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Typical Applications

  • Chemical & Petrochemical
  • HVAC/R
  • Industrial Equipment Manufacture
  • Industrial Ovens
  • Oil & Gas Applications
  • Power Generation Equipment
  • Reactors
  • Storage Tanks
  • Towers
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