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Watlow Style RF RTD Sensor with Metal Transition
Coiled Spring Strain Relief
Watlow provides a complete line of RTDs for a wide variety of industrial and process applications. These sensors have been designed to ensure precise and repeatable measurements as well as meet the environmental requirements for the application. RTD sensors may be configured to meet your specific application need with options including, but not limited to the following: element type, lead wire configuration, termination style, sheath materials, lengths and diameters, process connection heads, transmitters, thermowells, spring loading, flanges and surface mount packages. Please call us to configure an RTD you need that is not available on this website.

Watlow's RTD platinum resistance element temperature sensors are specially designed to ensure precise and repeatable temperature versus resistance characteristics. The sensors are made with controlled purity platinum, have high purity ceramic components and are constructed in a unique strain-free maner.

Style RF RTDs are constructed of flexible, mineral insulation that provides a bendable and highly durable sensor. It is manufactured with stainless steel transitions that are crimped to the sheath and filled with 260°C (500°F) epoxy (brazing is optional). These sensors have a coiled spring for strain relief, which protects the lead wire against sharp bends in the transition area. The RF RTD has a -200 to 650°C (-328 to 1200°F) temperature rating with dependable readings and high accuracy. They are manufactured in diameters from 0.125 to 0.250 inches.

To order a Watlow Style RF RTD build the desired 15-digit model part number using the ordering information form below.

Download Watlow Style RF RTD Catalog Page (pdf)

Custom Ordering Information - Watlow Style RF RTD Sensor
R F ___ ___ ___ ___ K ___ ___ ___ ___ ___ ___ ___ 0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
To order, make a selection in each category below, enter the quantity needed,
then click the "submit" button at the bottom of the page.
The part number and price will be displayed on the next page.
NOTE: Prices shown are for orders of 5 pieces or more.
There is a higher price for low quantity orders which is shown on next page.
1-2 Construction Style
RF = Standard Industrial RTD with Insulated Leads and Metal Transition

3. Sheath Diameter (choose G, H or J)
G = 0.125 inch diameter
H = 0.188 inch diameter
J = 0.250 inch diameter

4. Lead Wire Construction Type (choose A, B , J, L, R or T)
A = Stranded glass
B = PFA or TFE stranded
J = Stranded glass with SS overbraid
L = PFA or TFE stranded with SS overbraid
R = Stranded glass with flex armor
T = PFA or TFE stranded with flex armor

5. Fittings (choose one)- please note sheath size availability
0 = None
A = Fixed single thread 1/8 NPT 303SS - sheath sizes 0.125 to 0.250
B = Fixed single thread 1/4 NPT 303SS - sheath sizes 0.125 to 0.250
D = Fixed single thread 1/2 NPT 303SS - sheath sizes 0.125 to 0.250
F = Fixed double thread 1/2 NPT 303SS - sheath sizes 0.125 to 0.250
G = Adjustable compression TFE Gland 1/8 NPT 303SS - sheath sizes 0.125 to 0.188
H = Adjustable spring loaded double threaded 1/2NPT 316SS - sheath size 0.250
J = Non-adjustable compression 1/8 NPT brass - sheath sizes 0.125 to 0.250
L = Non-adjustable compression 1/8 NPT 303SS - sheath sizes 0.125 to 0.250
Q = Adjustable compression Lava Gland 1/8 NPT 303SS - sheath sizes 0.125 to 0.188
V = Adjustable compression Lava Gland 1/4 NPT 303SS - sheath size 0.250
W = Bayonet lockcap and spring - plated steel - sheath sizes 0.125 to 0.188
X = Adjustable compression TFE Gland 1/4 NPT 303SS - sheath size 0.250
2 = Flat weld pad - 304SS - all sheath sizes
5 = Milled slot weld pad - 304SS - all sheath sizes

6. Lead Wire Termination 200°C (choose A, B , C, J, K, L, T, U or W)
A = Standard male plug
B = Standard female jack
C = Standard plug with mating connector
J = Miniature male plug
K = Miniature female jack
L = Miniature plug with mating connector
T = Standard 1-1/2 inch split leads
U = 1-1/2 inch split leads with spade lugs

7. Sheath Material
K = 316SS (-328 to 1200°F / -200 to 650°C)

8-9. Sheath Length "L" (in whole inches) - (enter two digits 03 to 99) - 3" minimum length.
Tens - Ones

10. Sheath Length "L" (fractional inches) - (choose 0 or 4)
0 = 0
4 = 1/2

11. Element (choose A or B)
A = 100 ohm, 2-wire single
B = 100 ohm, 3-wire single

12. Temperature Coefficient (choose A or B)
A = Class A, DIN 0.00385
B = Class B, DIN 0.00385

13-14. Lead Length "E" (feet) - (enter two digits 01 to 99)
Tens - Ones

15. Special Requirements
0 = None

ENTER QUANTITY NEEDED
(Higher price applies for quantities less than 5 pieces)

This page last modified on 1/17/2023
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