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RTD probe with Terminal Head

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R4 style resistance temperature detector probe with terminal head offers screw cover terminal head and NPT fitting. This RTD temperature sensor assembly is used where protection for the termination is a consideration and can be designed for an outdoor application or with an integral transmitter.
 

Numerous element types, wiring configurations, sheath diameters, terminal heads and fitting options are available. 500°F(260°C), 900°F(482°C) or 1200°F(648°C) temperature options.

R4L-R4M-R4P

 

Part Number Configuration - Example:  R4L-EA-4C060-62AR

RTD Style - Element Type + Wiring Configuration - Sheath Material + Sheath Diameter + "L" Sheath Length - Process Connections + Spring Loading Options + Terminal Head + Fitting Option

RTD probe with Terminal Head Specs & Options

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RTD Style

Resistance Temperature Detector Style Maximum Temperature
R4L 500°F (260°C)
R4M 900°F (482°C)
R4P 1200°F (648°C)
 

Element Types

Element Type Code Element Type Description
A 100 ohm .00385 Curve Class B Platinum
B 100 ohm .00385 Curve Class A Platinum
D 500 ohm .00385 Curve Class B Platinum
E 1000 ohm .00385 Curve Class B Platinum
G 100 ohm .00392 Curve Class B Platinum
 

Wiring Configurations

Wiring Configuration Code Wiring Configuration Descriptions
A Single, 2 Wire
B Single, 3 Wire (Minimum sheath diameter .156”)
C Single, 4 Wire (Minimum sheath diameter .188”)
D Dual, 4 Wire (Minimum sheath diameter .188”)
E Dual, 6 Wire (Minimum sheath diameter .250”)
 

Sheath Material

Sheath Material Code Sheath Material Description
4 304 Stainless Steel
6 316 Stainless Steel
8 Inconel 600
 

Sheath Diameters

Sheath Diameter Code Sheath Diameter Description
B .125” or 1/8” O.D.
V .156” or 5/32” O.D.
C .188” or 3/16” O.D.
D .250” or 1/4” O.D.
F .375” or 3/8” O.D.
 

Dimensional Chart

"L" Dimensions "B" Dimensions "A" Dimensions Fractional Dimension
Letter Code
“L” dimensions are specified in whole inches and a single alpha character which represents a fraction. Enter the three digit code as follows: “B” dimensions are specified in fractions from ⅛” to 1”. Use the single alpha character to indicate the tip length. Enter the code as follows: “A” dimensions are
specified in whole inches only. Enter the three digit code as follows:		 1/16" A 11/16" L
1/8" B 3/4" M
3/16" C 13/16" N
1/4" D 7/8" P
5/16" E 15/16" R
3" 030 10 5/8" 10K 3/8" F 1" S
4 1/2" 04H 12" 120 1/8" B 5/8" K 9" 009 7/16" G 0 No
6 1/4" 06D 15 3/8" 15F 1/4" D 3/4" M 12" 012 1/2" H  
7 7/8" 07P 17 3/4" 17M 3/8" F 7/8" P 36" 036 9/16" J
9 5/8" 09K 22 1/8" 22B 1/2" H 1" S 144" 144 5/8" K
 

Terminal Head Process Connections

Process Connection Code Process Connection Description
6 1/2” NPT Stainless Steel Hex Nipple
8 3/4” NPT Stainless Steel Hex Nipple
 

Spring Loaded Options

Spring Loaded Codes Spring Loaded Descriptions
1 Fixed Fitting
2 Spring Loaded Fitting
 

Terminal Head Options

Terminal Head Code Terminal Head Description
A 1/2” NPT Conduit, Aluminum Head
B 3/4” NPT Conduit, Aluminum Head
C 1/2” NPT Conduit, Cast Iron Head
D 3/4” NPT Conduit, Cast Iron Head
M 1/4” NPT Conduit Connection, Miniature Plastic Head
P 1/2” NPT Conduit, Grey Delrin Head
R 3/4” NPT Conduit, Grey Delrin Head
W 1/2” NPT Conduit, White Polypropylene Head
V 3/4” NPT Conduit, White Polypropylene Head
Z 1/2” NPT Conduit, Explosion Proof Aluminum Head
Y 3/4” NPT Conduit, Explosion Proof Aluminum Head
 

Terminal Head Fitting Options

Fitting Option Code Fitting Option Description
0 No Fitting
N 1/8” NPT Compression, Brass
P 1/8” NPT Compression, Stainless Steel
R 1/4” NPT Compression, Brass
S 1/4” NPT Compression, Stainless Steel
V 1/2” NPT Compression, Stainless Steel


Custom Options Available - Contact us for Engineering Assistance.

RTD probe with Terminal Head Downloads

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Spec Sheets - RTD with Terminal Heads 0115-200KB
Resistance Temperature Detector Catalog 0115-2MB
Temperature Sensors Catalog 0115-4MB
Technical Data - RTD General Specifications 0115-250KB
Temperature Sensor Element Selection Guide 200KB