United Electric Terminal Head Style RTD Temperature Sensor, Style 21
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Style 21 Terminal Head Style RTD Temperature Sensor

Brand: United Electric Controls Ltd
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Designed for use in any pipe or surface temperature measuring application.
Features
  • NEMA 4 or 4X and Explosion-proof Terminal Head Option
  • Heat transfer pad with excellent temperature response
  • Rugged stainless steel sheaths for excellent mechanical protection
  • Replaceable element design for simplified RTD replacement — to replace a faulty element, you simply remove the head cover, disconnect the leads and remove the flexible element. You then insert the new element and reconnect the leads. Your process is up and running in minutes
  • Options include dual RTD sensors, thermocouple sensors and a variety of weld pad and head styles

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Specifications

Brand

Accuracy

  • ± 0.01 %
  • ± 0.06 %
  • ± 0.12 %

Approvals & Certifications

  • Certificate of Conformance

Approvals & Certifications

  • ATEX for EEx d IIC
  • CSA Class I, Div. 1, Groups B, C, D, Class II, Groups E, F, G
  • FM Class I, Div. 1, Groups B, C, D, Class II, Groups E, F, G
  • UL Class I, Div. 1, Groups C, D, Class II, Groups E, F, G

Communication

  • HART

Conduit Connection

  • 1/2” NPT
  • 3/4” NPT

Diameter

  • Sheath: 0.125” to 0.375” (3.17 to 9.52 mm)

Electrical Connectors

  • Cable Gland
  • Terminal Block (Ceramic & Plastic)

Environmental Protection

  • IP66
  • IP67
  • IP68
  • NEMA 4
  • NEMA 4X
  • Terminal Head: Explosion-proof

Gasket Material

  • O-Ring Gasket: Silicone Rubber

Input

  • 4-20 mA, 2-Wire Transmitter

Length

  • Sheath Length: 36” (914.4 mm) - Max.

Materials of Construction

  • Compression Fitting & Ferrule: Brass
  • Ferrule: Teflon
  • Sheath & Terminal Head: 316 Stainless Steel
  • Terminal Head: Cast Iron
  • Terminal Head: Cast or Epoxy Coated Aluminum
  • Terminal Head: Nylon
  • Terminal Head: Polypropylene (White or Black)
  • Terminal Head: Stainless Steel

NACE & NIST

  • NIST Traceable Calibration

Name Plate, Tag Material

  • Stainless Steel

NPT Connection

  • 1/2” NPT Male
  • 1/4” NPT Male
  • 1/8” NPT Male

Operating Temperature - Sensor

  • -200° to 788° C (-328° to 1,450° F)

Output

  • 4-20 mA, 2-Wire Transmitter, Isolated or Non-Isolated Output

RTD Type

  • Pt100

Sensor, Probe Connection

  • 2-Wire
  • 3-Wire
  • 4-Wire

Sensor, Probe Material

  • Platinum

Sensor, Probe Type

  • RTD

Documentation

Data Sheets

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