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PR-22
RTD Probes with Molded M12 Connectors
Models In Stock
- 316 Stainless Steel Probe with Nylon Overmolded M12 A-Coded 4-Pin Connector (IP67). An M12 Extension Cable is Required for Installation.
- Fractional and Metric Probe Diameters and Lengths
- Great for Use As-Is or With Compression Fittings, Spring Loaded Fittings and Thermowells
- In-Line, Remote and Wireless Transmitters Available
PR-22
From
$
57.14
Models In Stock
Product Overview
- Color Code Standard ANSI
- Connector Temperature, Max 90 °C
- Connector Temperature, Min -50 °C
- Electrical Connection M12 4 pin Male
- Enclosure Ratings IP67
- Number of Wires 4
- Process Connection Size N/A
- Series ID PR-22
- Sheath Material 316 Stainless Steel
- Temperature Sensor Type RTD
- Thermocouple Type N/A
Supported Applications
The Omega PR-22 Series consists of RTD (Resistance Temperature Detector) probes featuring molded M12 connectors. These sensors are designed for temperature measurement applications requiring Pt100 elements with IEC Class A or Class B accuracy specifications.
Operating Conditions & Performance
The PR-22 series supports distinct process and ambient operating ranges based on the selected accuracy class:
- Class A Standard Probe Temperature Range: -30 to 350°C (-22 to 622°F)
- Class B Probe Temperature Range: -50 to 500°C (-58 to 932°F)
The connector temperature range is specified as -50 to 90°C (-58 to 194°F). Accuracy values are defined as ±0.15°C @ 0°C for Class A and ±0.30°C @ 0°C for Class B.
Configuration Options
The series offers configurable dimensions, sensor elements, and electrical connections to accommodate various installation requirements.
Sensor Elements & Accuracy Classes
- Pt100 Sensors: Available in IEC Class A or IEC Class B accuracy configurations.
- Model Numbering: The letter "A" denotes Class A, while changing this to "B" indicates a Class B element (e.g., PR-22-3-100-B).
Probe Dimensions & Materials
- Sheath Material: 316 Stainless Steel.
- Diameters (Imperial): 1/8, 1/4, 3/8, and 1/2 inch options are available for the Standard series.
- Diameters (Metric): 2 mm (M2), 3 mm (M3), and 6 mm (M6) probe diameters. Note: M2 is only available in 150 mm and 250 mm lengths.
- Probe Lengths: Standard series offers 6", 9", 12", 18", and 24" insertion lengths. Metric series options include 100, 150, 250, 350, 500, 750, and 1000 mm.
Electrical Connection & Accessories
- Connector Type: Molded 4-pin M12 connector with an IP67 enclosure rating.
- Extension Cables: Optional extension cables, such as the M12C-SIL-4-R-F-1.5 model, are available separately to extend reach from the probe tip.
Key Product Differences
Variants within the PR-22 series differ primarily by accuracy class (Class A vs. Class B), sensor element resistance (Pt100 or Pt1000 as indicated in model numbers like PR-22-3-1000-A), and dimensional specifications.
- Accuracy Selection: Models with "A" in the designation provide IEC Class A accuracy, while models designated with "B" offer IEC Class B accuracy. Pricing for Class B variants is available via omega.com/pr-22.
- Diameter Constraints: The 2 mm (M2) diameter option is restricted to specific lengths of 150 mm and 250 mm, whereas other diameters support the full range of standard insertion lengths.
PDFs & Manuals
Accessories
accessories
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Show Ratings & Reviews
Rated 1 out of
5
by
Roger R from
Melted at 400C
Probe melted at 400c, previous probe did not melt.
Date published: 2025-03-06
Rated 5 out of
5
by
F Mar from
PT100 are 100
We prefer this product for our assemblies. Omega has never let us down.
Date published: 2023-04-17
Rated 5 out of
5
by
GregO from
Great Value
Works as expected and a great value for replacement RTD's.
Date published: 2023-03-13
Rated 5 out of
5
by
Matt P from
Great for coffee roasters
Worked great on my coffee roaster. Much more reliable data.
Date published: 2022-10-18
Rated 5 out of
5
by
D Holma from
Unmatched Quality
I have bought these and various similar items over the years. I have never had an issue with any of them.
Date published: 2022-10-14
Can a 4 wire rtd be connected to a 3 wire instrument
A 4 wire RTD can be used for a 3 wire instrument by not using one of the sensor wires .
Please contact our Temperature Group at 800-826-6342 for further wiring details
Date published: 2020-09-09
I am using this probe in a Saline solution and seeing corrosion after a few weeks, is the 316 SS passivated? Also, is there a coating that can be applied to this sensor to make it less susceptible to corrasion? PN: PR-22-3-100-A-M2-250-M12
Thank you for the inquiry. Please forward this request to TEMP@OMEGA.COM. We will assist you in finding cause for corrosion.
best regards
OMEGA
Date published: 2021-07-15
PR-22-3-100-A-1/8-0600-M12: (1) part # compress.fitting w/ 1/8NPT male? (2) probe min. immersion lg.? (3) is the insertion lg. adjustable, i.e. can compress.fitting be installed at any location along probe tube (plan to install.on different pipe sizes)?
The minimum insertion length for RTD's is 2" and yes you can place a compression fitting along the length of the probe to adjust the depth.
Date published: 2024-12-04
What is the sensitivity (alpha in units of Ohms per degrees Celsius) for this model?
For the RTD Class A, Class A = ±(0.15 + 0.002*t)°C or 100.00 ±0.06 Ω at 0ºC
Date published: 2020-08-20
Is this probe bendable?
The PR-22 are not bendable so look to the PR-26 if you need a bendable RTD probe.
Date published: 2023-06-09
Can this probe be used for air measurement?
Thank you for the inquiry. Yes, this probe can be used for air measurement.
Date published: 2024-09-05
What are the 0-100C response times in water for this sensor? 50%, 63%, 90% etc.?
Hi RobW,
Thank you for the inquiry. Response times will be comparable to the PR-21 series.
https://www.omega.com/en-us/temperature-measurement/temperature-probes/probes-with-integral-connectors/pr-21/p/PR-21A-3-100-1-3-M6-0150-M12-1
Fast Response Time (3.5 Seconds or Less 63% Response in Water). Response to near 100% would be 5x this value.
Please contact temperature group for more details if needed.
Best regards
OMEGA
Date published: 2021-07-15