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The RTD sensors listed below are constructed with the CIP sanitary-connected cap thermowell, which is then mounted into the process with a clamp and mating sanitary cap. A 3-wire spring-loaded RTD element and sheath is then screwed into the back of the thermowell. This construction method allows for easy removal of both the well and/or the sensor assembly. The well and sanitary cap in contact with the process are all ground and polished to a finish that exceeds the 3-A Sanitary Standard 74-. Thermowells are supplied with a surface finish that meets or exceeds 32µin Ra Surface finishes of 15 µin Ra or better are available upon request.
Unit of Measure

Specifications

Brands

 N/A Pyromation®

Configuration Code

 N/A FD03

Standards

 N/A 3A-74 Sanitary Standards

Element Connection

 N/A Code 3 - 3-Wire Element Code 4 - 4-Wire Element (Not Available in Duplex)

Well Type

 N/A DR4 (Maximum "S" Dimension is 7 1/2) - 0.260 in. bore reduced-tip sanitary well DW4 (Wells with "S" dimensions of 12 in. or less are supplied with drilled bar stock stem. "S" dimensions above 12 in. will be supplied as tubing and welded tip.)

Cap Size and Style

 N/A 15 - 1 in., 1-1/2 in. Tri-clamp® 16 Amp 25 - 2 in. Tri-clamp® 16 Amp 35 - 2-1/2 in. Tri-clamp® 16 Amp 45 - 3 in. Tri-clamp® 16 Amp

Length S

 N/A XX - Specify length in inches using two digits.

Well Material

 N/A 08 - 316 Stainless Steel

Element Style

 N/A SC - Self-contained spring-loaded element SL (Not available with 35, 36, or 37 series Transmitters) - Spring-loaded element

Head Mounting Fittings

 N/A 8HN - 316 Stainless Steel hex fitting 8PN(E) - 316 Stainless Steel pipe nipple specify E length

Terminations

 N/A 31,W - Aluminum screw-cover head with white epoxy coating 35T-642A - (4 to 20) mA HART® Field Transmitter with aluminum general-purpose housing 36T82-D10 - (4 to 20) mA dual input HART® transmitter with digital display and general-purpose aluminum housing with glass lid 37T-662A - (4 to 20) mA HART® Field Transmitter with general-purpose aluminum housing 63 - White polypropylene screw-cover head 91 - 316L stainless steel screw-cover head

Head Options

 N/A I - Stainless steel tags (specify tag #) T-440 - (4 to 20) mA head-mounted RTD transmitter T-441 - (4 to 20) mA isolated head-mounted transmitter T-442 - (4 to 20) mA isolated HART® head-mounted transmitter T82-00 - (4 to 20) mA dual input HART® head-mounted transmitter

Pt100 (α = 0.003 85 ºC-1) Resistance Temperature Detector (RTD) Assemblies

Pt100 (α = 0.003 85 ºC-1) Resistance Temperature Detector (RTD) Assemblies1 N/A R1T185L483 (Single) - Grade B Tolerance R1T285L483 (Duplex) - Grade B Tolerance R3T185L483 (Single) - Class AA Tolerance R3T285L483 (Duplex) - Class AA Tolerance R5T185L483 (Single) - (1/5) Class B Tolerance R5T285L483 (Duplex) - (1/5) Class B Tolerance RAF185L483 (Single) - Class A Tolerance RAF285L483 (Duplex) - Class A Tolerance

Note

Note

 N/A Tri-Clamp® is a registered trademark of Alfa Laval, Inc.

HART® is a registered trademark of HART® Communication Foundation.
  • 1 Refer to RTD tolerance information in the General Information section for calculations to determine specific tolerance at temperature.