PALMER Wahl WR Series Industrial RTD Probes Instructions

: July 30, 2024
: Palmer Wahl

Table of Contents

WR Series Industrial RTD Probes
Specifications:
Product Usage Instructions:
Step 1: Select RTD Sensor
Step 2: Select Process Connection
Step 3: Select RTD Type
Step 4: Select Stem Diameter
Step 5: Select Wire Configuration
Step 6: Select Stem Length
Step 7: Select Connection
Step 8: Enter Model Number
- Frequently Asked Questions (FAQ):
Q: Can I request a different surface finish for the Sanitary
Q: Are Prices, Lead Times, and Specifications subject to
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

WR Series Industrial RTD Probes

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Specifications:

Product Name: WR Series Industrial RTD Probes
Material Options: Standard 304 SS, Standard 316 SS, Compression
304 SS, Spring Loaded 316 SS, Sanitary 316 SS
Process Connection Options: Various options available based on
sensor type
Surface Finish: 32 inch (.8m) or better

Product Usage Instructions:

Step 1: Select RTD Sensor

Choose from one of the following codes: WR1, WR2, WR3, WR4, or
WR5 based on the material type.

Step 2: Select Process Connection

Choose the process connection based on the selected RTD sensor
code. Each code corresponds to a specific process connection
type.

Step 3: Select RTD Type

Choose the RTD type based on the requirements.

Step 4: Select Stem Diameter

Choose the stem diameter from the available options.

Step 5: Select Wire Configuration

Choose the wire configuration based on the number of wires
required.

Step 6: Select Stem Length

Choose the stem length in inches with the option for fractional
lengths.

Step 7: Select Connection

Select the desired connection type. Specify additional items if
required like Terminal Block or Transmitter.

Step 8: Enter Model Number

Based on the selections made in previous steps, enter the model
number for the desired unit.

Frequently Asked Questions (FAQ):

Q: Can I request a different surface finish for the Sanitary

products?

A: Yes, other finishes including Electropolishing are available
as options. Please inquire about pricing for these finishes.

Q: Are Prices, Lead Times, and Specifications subject to

change?

A: Yes, Prices, Lead Times, and Specifications are subject to
change without notice. It is recommended to check the website for
the latest information.

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RTD & THERMOCOUPLE SENSOR ASSEMBLIES WR Series Industrial RTD Probes

Pricing Effective: Revised February 13, 2024 January 1, 2024 ALWAYS check website for latest version.

For faster delivery call Customer Service.

WR Series Industrial RTD Probes

Wahl WR Series Industrial RTD Probes Order Guide

Step 1 – Select: RTD Sensor from Codes WR1, WR2, WR3, WR4, or WR5

WR1

RTD Sensor – Standard 304 SS

WR2

RTD Sensor – Standard 316 SS

Step 2 – Select: Process Connection from corresponding Codes under chosen Sensor

Code Standard Process Connection

A

1/2″ x 1/2″ NPT, No Lagging Extension

B

1/2″ x 3/4″ NPT, No Lagging Extension

C

2″ Lagging Extension, 1/2″ x 1/2″ NPT

D

4″ Lagging Extension, 1/2″ x 1/2″ NPT

E

6″ Lagging Extension, 1/2″ x 1/2″ NPT

F

2″ Lagging Extension, 1/2″ x 3/4″ NPT

G

4″ Lagging Extension, 1/2″ x 3/4″ NPT

H

6″ Lagging Extension, 1/2″ x 3/4″ NPT

WR3

RTD Sensor – Compression 304 SS

Code Compression Process Connections

J

1/2″ x 1/2″ NPT, Compression Fitting

C

2″ Lagging Extension, 1/2″ x 1/2″ NPT

D

4″ Lagging Extension, 1/2″ x 1/2″ NPT

E

6″ Lagging Extension, 1/2″ x 1/2″ NPT

WR4

RTD Sensor – Spring Loaded 316 SS

Code Spring Loaded Process Connections

K

1/2″ x 1/2″ NPT, Spring Loaded Fitting

WR5

RTD Sensor – Sanitary 316 SS

Code Sanitary Process Connections

L

1-1/2″ Flange

M

2″ Flange

N

2-1/2″ Flange

P

3″ Flange

Insert Codes below and carry over to next page: WR____
Note: All Palmer Wahl Sanitary products have a surface finish (Ra) of 32 inch (.8m) or better. Other finishes, including Electropolishing are available as options, priced on request.
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Toll Free: 800-421-2853 · Phone: 828-658-3131 · www.palmerwahl.com

Note: Re-certify/Recalibrate – no discount Prices, Lead Times and Specifications subject to change without notice.

RTD & THERMOCOUPLE SENSOR ASSEMBLIES WR Series Industrial RTD Probes

Pricing Effective: Revised February 13, 2024 January 1, 2024 ALWAYS check website for latest version.

Wahl WR Series Industrial RTD Probes Order Guide (continued)

Step 3 – Select: RTD Type

Code RTD Type

1 Thin Film, Class A, 100 ohm (.00385), -58° to 400°F (-50° to 204°C)

2 Thin Film, Class B, 100 ohm (.00385), -58° to 400°F (-50° to 204°C)

3 Wire Wound, Class A, 100 ohm (.00385), -58° to 400°F (-50° to 204°C)

4 Wire Wound, Class B, 100 ohm (.00385), -58° to 400°F (-50° to 204°C)

Step 4 – Select: Stem Diameter

Code Stem Diameter

0 NA

1 1/4″

2 3/8″ (not available on WR4)

Step 5 – Select: Wire Configuration

Code Wire Configuration

2 2 Wire Teflon

3 3 Wire Teflon

4 4 Wire Teflon

Step 6 – Select: Stem Length

Code Stem Length

01X-12X

1″ to 12″ Length in inches – 01X = 1 inch, 02X = 2 inch, 03X = 3 inch, etc. For fractional lengths substitute X with: A = 1/4″, B = 1/2″, C = 3/4″, Example: 03B = 3-1/2″.

13X – 72X

13″ to 72″ Length in inches. For fractional lengths substitute X with: A = 1/4″, B = 1/2″, C = 3/4″, Example: 13B = 13-1/2″.

Step 7 – Select: Connection and enter corresponding Model number in Step 8 below

Code Connections

0 No Connection Head

1 Connection Head with Terminal Block*

2 Connection Head with Transmitter*