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The replaceable element Heat-Tracing RTD assemblies are made for use in systems that measure the surface temperature of process pipe that is carrying products whose temperatures must be controlled to prevent freeze-up, or to maintain a viscosity level so that the inner medium will flow. The RHT assembly allows the sensing element to be easily removed and replaced without removing insulation, or disassembling the sensor from the piping system. These RTDs are offered in two of temperature ranges and are supplied with a 316SS sheath and a 3/4" radius stainless steel mounting pad.
Unit of Measure

Specifications

Brands

 N/A Pyromation®

Configuration Code

 N/A SP-12

Sheath Diameter

 N/A Code 68 - 3/8 in

Sheath Materials

 N/A 316 Stainless Steel

Element Connection

 N/A Code 2 - 2 wire Code 3 - 3 wire Code 4 - 4 Wires

Sheath Style

 N/A Code RHT - Replaceable Element

Sheath Length

 N/A Code 05(1/2) - Hot Leg "A" Dimension (5(1/2) inch minimum hot leg and 6 inch minimum cold leg for RHT assembly) Code 06 - Cold Leg "B" Dimension (5(1/2) inch minimum hot leg and 6 inch minimum cold leg for RHT assembly)

Radius Mounting Pad

 N/A Code 18RD - 1 in. wide x 2 in. long 18 Ga 304 Stainless Steel mounting pad with a 3/4 in. radius. Can be formed to fit pipe sizes from 1 in. National Pipe Thread (NPT) to 12 in. National Pipe Thread (NPT)

Head Terminations

 N/A Code 31 - Aluminum Screw-Cover Head Code 34 - Cast Iron Screw-Cover Head Code 35T142A - (4-20) mA HART® Field transmitter with general-purpose aluminum housing Code 36T82-D10 - (4 to 20) mA dual input HART® transmitter with digital display and general-purpose aluminum housing with glass lid Code 37T-662A - (4 to 20) mA HART® Field Transmitter with general-purpose aluminum housing Code 49 - Flip-Top Aluminum Head Code 63 - (4 to 20) mA HART® field transmitter with aluminum explosion-proof housing, Group A Code 75T142C - (4 to 20) mA dual input HART® Field Transmitter with digital display and explosion-proof aluminum housing, Group A Code 76T82-D10 - (4 to 20) mA HART® Field Transmitter with dual cavity explosion-proof aluminum housing, Group A Code 77T82-D10 - (4 to 20) mA HART® Field Transmitter with dual cavity explosion-proof aluminum housing, Group A Code 91 - 316L Stainless Steel Screw-Cover Head Code 93 - Aluminum explosion-proof/flame-proof head, NEC, IEC, Atex approved Code 94 - 316L stainless steel explosion-proof/flame-proof head, NEC, IEC, Atex approved

Note for Sheath Length

 N/A Specify 2 digit hot leg and 2 digit cold leg in in.

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

Tolerance

 N/A Code N/A (Duplex) - Class B Code N/A (Duplex) - ClassA Code RAF185L (Single)- Class A Code RAF185M (Duplex) - ClassA Code RAF285L (Duplex) - Class A Code RBF185L (Single) - Class B Code RBF185M (Single) - Class B Code RBF285L (Duplex) - Class B

Temperature Range

 N/A Code N/A (Duplex) - 50 to 450 ºCCode RAF185L (Single) - 50 to 200 ºCCode RAF185M (Single) - 50 to 450 ºCCode RAF285L (Duplex) - 50 to 200 ºCCode RBF185L (Single) - 50 to 200 ºCCode RBF185M (Single) - 50 to 450 ºCCode RBF285L (Duplex) - 50 to 200 ºC

Options

Options

 N/A D-2 - Class I Div. 2 Rating for option 31, 34, 91 I - Stainless Steel Tag NB - Nylon conduit reducer bushing SB - Steel conduit reducer bushing T31 - (4 to 20) mA Head-Mounted RTD Transmitter T71 - (4 to 20) mA Isolated Head-Mounted Transmitter T72 - (4 to 20) mA Isolated HART® Head-Mounted Transmitter T82-00 - (4 to 20) mA isolated HART® Dual Input Head-Mounted Transmitter