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Fixed-sheath RTD assemblies with miniature heads are offered with mounting fittings that are welded or brazed to the sheath for direct immersion into a process. The miniature heads offer a compact design and are ideal for laboratory applications or applications where space is limited. The RTD assemblies are supplied with a 316 stainless steel sheath in several diameters. They are offered in various tolerances and temperature ranges as noted below.
Unit of Measure

Specifications

Brands

 N/A Pyromation®

Configuration Code

 N/A GP07
Tolerance (100 Ohms Platinum Resistance Temperature Detector (RTD) Elements (α = 0.003 85 ºC-1))1 N/A Code R1T185L - Grade B
Code R5T185L - (1/5) Class B
Code RBF185L - Class B
Code RAF185L - Class A
Code R1T185H - Grade B

Temperature Range (100 Ohms Platinum Resistance Temperature Detector (RTD) Elements (α = 0.003 85 ºC-1))

 N/A Code R1T185H - -200 to 600 ºCCode R1T185L - -200 to 200 ºCCode R5T185L - -30 to 150 ºCCode RAF185L - -30 to 200 ºCCode RBF185L - -50 to 200 ºC

Sheath Diameters

 N/A Code 28 - 1/8 inCode 38 - 3/16 inCode 48 - 1/4 inCode 68 - 3/8 in

Element Connection

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

'X' Dimension

 N/A Insert three digit "X" length in inches.
Sheath lengths over 72" will be shipped in a coiled configuration unless otherwise specified.

No Fitting

 N/A Code 00

Head Mounting Fittings

 N/A Code 9HNB - 1/4" x 1/4" stainless steel hex nipple
Code 8HPB - 1/4" stainless steel hex bushing (no process threads)
Code 8CFB - 1/4" NPT 316 stainless steel compression fitting (no process threads)
Code 22CFB - 1/4" NPT brass compression fitting (no process threads)

Miniature Head Terminations

 N/A Code 17 - Miniature plastic head (3/8" NPT conduit opening)
Code 25 - Miniature nickel-plated head

One-Time Adjustable Fittings

Type (One-Time Adjustable Fittings)

 N/A Code 05A - 316 Stainless Steel
Code 05B - 316 Stainless Steel
Code 05C - 316 Stainless Steel
Code 15A - Brass
Code 15B - Brass
Code 15C - Brass

National Pipe Thread (NPT) Size (One-Time Adjustable Compression Fittings)

 N/A Code 05A - 1/8 inCode 05B - 1/4 inCode 05C - 1/2 inCode 15A - 1/8 inCode 15B - 1/4 inCode 15C - 1/2 in

Sheath Diameter (One-Time Adjustable Compression Fittings)

 N/A Code 05A - 1/8, 3/16, 1/4 inCode 05B - 1/8, 3/16, 1/4, 3/8 inCode 05C - 1/8, 3/16, 1/4, 3/8 inCode 15A - 1/8, 3/16, 1/4 inCode 15B - 3/16, 1/4, 3/8 inCode 15C - 1/4, 3/8 in

Re-Adjustable Compression Fittings

Type (Re-Adjustable Compression Fittings)

 N/A Code 12A - 316 stainless steel
Code 12B - 316 stainless steel
Code 12C - 316 stainless steel
Code 11A - Brass
Code 11B - Brass
Code 11C - Brass
Code 19C - Spring-loaded SS well fitting

Note for Re-Adjustable Compression Fittings

 N/A FEP gland standard 204 ºC [400 ºF] max.

National Pipe Thread (NPT) Size (Re-Adjustable Compression Fittings)

 N/A Code 11A - 1/8 inCode 11B - 1/4 inCode 11C - 1/2 inCode 12A - 1/8 inCode 12B - 1/4 inCode 12C - 1/2 inCode 19C - 1/2 in

Sheath Diameter (Re-Adjustable Compression Fittings)

 N/A Code 11A - 1/8, 3/16, 1/4 inCode 11B - 1/8, 3/16, 1/4, 3/8 inCode 11C - 1/4, 3/8 inCode 12A - 1/8, 3/16, 1/4 inCode 12B - 1/8, 3/16, 1/4, 3/8 inCode 12C - 1/8, 3/16, 1/4, 3/8 inCode 19C - 3/16, 1/4 in

Fixed Bushings

Fixed Bushing Mounting National Pipe Thread (NPT) Size

 N/A Code 8A _ _ - 1/8 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) inCode 8B _ _ - 1/4 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) inCode 8C _ _ - 1/2 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) inCode 8D _ _ - 3/4 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) in

Fixed Bushing Sheath Diameter

 N/A Code 8A _ _ - 1/8, 3/16, 1/4 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) inCode 8B _ _ - 1/8, 3/16, 1/4, 3/8 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) inCode 8C _ _ - 1/8, 3/16, 1/4, 3/8 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) inCode 8D _ _ - 1/8, 3/16, 1/4, 3/8 (When ordering fixed bushings, specify order code above, plus insertion length "U", as measured from hot tip to bottom of threaded bushing. EXAMPLE: order code 8A06 is 1/8" NPT, 316 SS bushing located 6" from hot tip.) in
  • 1 Refer to RTD tolerance information in the General Information section for calculations to determine specific tolerance at temperature.