Skip to search Skip to main content Skip to navigation

Call us at 1-888-826-6342

Cart
  1. Home
  2. See Temperature Measurement
  3. See Temperature Probes
  4. See Probes with Industrial Heads
  5. Industrial RTD (PT100) Probes with Cast Iron Protection Head
We noticed you are from . Visit your local site for regional offers and live support.
Stay here.
Go to the site >

Industrial RTD (PT100) Probes with Cast Iron Protection Head

RTD Probe with Cast Iron Protection Head
4.8
(5)
RTD Probe with Cast Iron Protection Head
Click and hold to zoom

Data Sheet (PDF)

Calibration Service

  • RoHS Icon

$149.65

Item# PR-12E-3-100-1/4-6

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $149.65
5-9 $142.17
10-24 $139.17
25-49 $133.19
50-99 $130.20
100+ $127.20

In stock

Lead Time (If not in stock): 20 weeks
+ Add to Project List
RTD Probe with Cast Iron Protection Head PR-12E-3-100-1/4-6 PR-12E-3-100-1/4-6
  • Low temperature range: -50 to 250°C (-58 to 482°F)
  • High temperature range: -50 to 450°C (-58 to 842°F)
  • Extreme temperature range: -200 to 600°C (-328 to 1112°F)
  • Corrosion-resistant cast iron protection head

PR-12E-3-100-1/4-6 Model Options

View all models

Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination or click the CONFIGURE button to build your own.

Process Temperature Range
Nominal Output
Number of Wires
Probe Diameter
Probe Length
Cable Insulation
Wire Gauge
Cable Length
Termination Connection Type
Additional Feature
Category
Sensor Application
Process Connection Size
Accuracy
Sheath Material


  • Accuracy Class A from -100°C to 450°C (-148 to 842°F); Class B otherwise, per IEC 60751
  • Cold-End Max Temperature Low (L), 100°C (212°F); High (H) and Extreme (E), 250°C (482°F)
  • Dimensions Standard diameters of 1/8”, 3/16”, and 1/4” ; variable lengths
  • Ingress Protection IP67 (with exception of “High” (10H) type)
  • Nominal Resistance Curve Choice of PT100Ω or PT1000Ω
  • Process Temperature Range -200 to 600°C (-328 to 1112°F)
  • Protection head Cast Iron
  • Wire Length / Terminations Screw Terminal

Our PR-12 series probe with chemical-resistant cast iron protection head and screw-on cap includes PT100 Ω platinum RTD element or PT1000 RTD element, 1/2" NPT mounting threads and sheath of 316 stainless steel. When properly sized, these can go directly into and bottom out in a thermowell. All probes include a screw terminal block for easy connection of insulated copper extension wire. Replacement probes (without head assembly) are available as well as a "spring-loading" option which allows for the probe to bottom out in a thermowell for quicker and more accurate response. Inside dimensions for the cast iron head: Diameter: 2.2 inches; Height: 2.0 inches

Rated 5 out of 5 by from Our customers insist on Omega Omega RTDs outlast anything on the market. Our customers insist on Omega
Date published: 2024-09-24
Rated 4 out of 5 by from Great RTD RTD Probe was good. It was just as ordered. That it.
Date published: 2024-08-23
Rated 5 out of 5 by from Good Quality Good quality. As advertised. Will work for our needed application.
Date published: 2023-05-31
Rated 5 out of 5 by from Great product at a great price! Received product faster than expected. Product does what is expected.
Date published: 2022-10-27
Rated 5 out of 5 by from Assembly for Client- Food Processing Parts for an assembly are shipped in a timely manner. Our client enjoys the ease of one part on their shelf as a storeroom item.
Date published: 2022-01-20
  • y_2024, m_11, d_2, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_5
  • loc_en_US, sid_PR-12E-3-100-1-4-6, prod, sort_[SortEntry(order=HELPFULNESS, direction=DESCENDING), SortEntry(order=POSITIVE_FEEDBACK, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 3ms
  • REVIEWS, PRODUCT

Need a wiring diagram for this PR-12E-3-100-1/4-6.

Asked by: Eddy B
There isn't a wire diagram to send so the best thing is to call the Temperature group at 800-872-9436 and have an Engineer explain the connections.
Answered by: ApplicationsEngineerANB
Date published: 2024-08-28

What are the dimensions of the cast iron RTD head?

Asked by: bzachry
Hi bzachry, Thank you for the inquiry. For details on the protection head; https://assets.omega.com/pdf/hardware/protection-heads/NB_HEPTX_NXT_HEADS.pdf Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-06-21

Are the protection heads certified for any hazardous environments, say Class 1 Div 2. Where can I find information on the heads such as UL Listing?

Asked by: Tom S
Hi Tom S, Thank you for the inquiry. We do not offer assembly rated Class 1 Div 2. For questions on the head alone please forward request to TEMP@OMEGA.COM. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-10-07

Good day, what is the max operating pressure ?

Asked by: JHax
Hi JHax, Thank you for the inquiry. We do not provide a pressure rating this probe series due to the temperatures they may be exposed to. For pressurized applications please consider use of thermowell. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2024-07-05

Is the spring-loaded RTD sealed from the process or is a thermowell required to prevent leaking into the cast iron head? PR-12-2-100-1/4-12-E-SL-DUAL

Asked by: RTDsAreMyFavorite
Thank you for your inquiry. Spring-loaded probes are not sealed and would require a thermowell to seal probe to the process.
Answered by: Application Engineer JB
Date published: 2021-09-15

is this RTD are 2-wire or 3-wire?

Asked by: ankur
Thank you for your inquiry. The PR-12 series RTD is available with either 3 wire or a 4 wire configuration.
Answered by: Application Engineer SP
Date published: 2024-03-19
  • y_2024, m_11, d_2, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_6
  • loc_en_US, sid_PR-12E-3-100-1-4-6, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 3ms
  • QUESTIONS, PRODUCT

Related Products

Quick View
Handheld RTD probes with Integral Handle & Retractable
Rugged High Impact Plastic Handle with Easy Grip Contour1 ft Retractable Cable Expands to 5 ft - Stripped Lead Termination StandardHandle Rated to 150°C (300°F)Probe Permanently Attached to Handle for Added Strength.
See More
Quick View
RTD Probes with Molded M12 Connectors
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 ...
See More
Quick View
-100°C to 250°C RTD Air Temperature Probes M12
Pt100 Wire Wound RTD with Class A Accuracy Standard (Tighter Accuracy Options Available)Resistance vs. Temperature and Accuracy per IEC 60751Temperature Range: -100 to 250°C (-148 to 500ºF)Probe Will Withstand 400 psi (27.6 bar) Differential Pressure Between Airstream and Ambient Conditions. ...
See More
Quick View
RTD Probes with High Temperature Molded M12 Connectors
Bendable Probes [After the First 2' (50 mm) of Probe Tip] Using a Minimum Suggested Bend Radius of 2x the Probe DiameterVibration Tested to MIL-STD-202G, Method 204D, Condition A (10g's from 10 to 500 Hz) (6 inch or Shorter Length)-50 ...
See More
Quick View
RTD Probes with Mounting Threads and M12 Connectors
Integral 4-Pin M12 A-Coded Male Connector for Easy Installation. An M12 Extension Cable is Required for Installation.Available With a Variety 316L SST Threaded and Non-Threaded HousingsPt100 or Pt1000 Class A, 4-Wire Platinum RTD Elements per IEC60751 StandardAvailable with 1/4', 1/8', ...
See More

More Related Items

rtd probe handheld probe spring loaded thermocouple probes protection heads ceramic thermocouple rtd probe with cast iron head

Related Categories

probes with lead wires air sensor probes probes with industrial heads sanitary probes probes with integral connectors
en-US
en
Save Configuration