PT100 RTD Sensor with M12 Connector |
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Integral 4-Pin M12 A-Coded Male Connector for Easy Installation. An M12 Extension Cable is Required for Installation.
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Available With a Variety 316L SST Threaded and Non-Threaded Housings
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Pt100 or Pt1000 Class A, 4-Wire Platinum RTD Elements per IEC60751 Standard
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Available with 1/4", 1/8", 6mm and 3mm Probe Diameters and a Wide Variety of Standard Lengths
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Two Wiring Arraingements Available to Match Any 2, 3 or 4-Wire Requirement.
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Temperature Range -50 to 250°C (-58 to 482°F) Sensing End, 85°C Max at Connector
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Fast Response Time (3.5 Seconds or Less 63% Response in Water)
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View related products - Sensors and Transducers
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Note: These Sensors Require an M12 Extension Cable to Connect the Sensor To Your
Instrumentation. A Partial List Of Our M12 Extension Cables is Included in the Ordering Table Below.
The PR-21 RTD sensors are made with 316L Stainless Steel housings for strength and corrosion resistance. These sensors include a
4-pin, M12 A-Coded plug connector for easy assembly to patch cables or extension cables, as well as three "NPT" pipe thread and two metric mounting thread options for easy installation into an existing threaded port. A non-threaded
housing option is also available for other types of installations.
For use in thermowells, the PR-21SL version of this sensor is the
preferred solution. The PR-21SL design includes a non-threaded PR-21A style probe with a self-gripping spring and 1/2NPT
threaded fitting to insure that the probe will contact the bottom of the thermowell bore without damaging the sensor. This insures that the sensor
length will always be a perfect fit for your thermowell. See the PR-21SL for additional information.
The mounting thread options on the PR-21 Series sensors allow them to be used in a wide variety of applications, including:
Stand alone immersion sensors.
Installed directly into your product or process using an existing NPT or metric threaded port.
Other applications using a variety of available compression fittings or other accessories.
These RTD sensors can be used in any 2, 3 or 4-wire application by selecting one of the two available wiring
arrangements (see the wiring diagrams below) and using only those wires needed for your connection. This allows for
simplified, trouble free installation with any existing application. This also allows the PR-21 series sensor to be used
for a wide variety of replacement applications since it can be connected as-is with just about any measurement or
control equipment available when combined with a 4-pin female M12 connector extension or patch cable.
 
When ordering your PR-21 sensor, don't forget your extension cable. Omega offers a wide selection of extension cables including over molded PVC, Polyurethane and Silicone cables, as well as customized cables in a variety of materials with optional stainless steel braid or hose for improved mechanical protection, and a wide selection of instrument connections.
Connect your PR-21 RTD sensor to one or more of Omega's wide variety of in-stock controllers, data loggers, hand held thermometers, PLCs, or other measurement & control products to complete your measurement or control system. Omega offers two 4-20 milliamp transmitters that can be connected directly to the M12 connector of your PR-21 sensor. These include the SPRTX-SS1-M12 and the TX94A-SS-M12F loop powered transmitters, and the UWRTD-S-2 which provides a wireless transmitter option.
Specifications:
Metal Parts: 316L Stainless Steel Sheath and Housing.
Connector: 4-Pin "A"-Coded M12 Plug Connector
Standard Mounting Threads: 1/2NPT, 3/8NPT, 1/4NPT, M10x1mm, M8x1mm and Non-Threaded
Standard Probe Diameters: 1/4", 1/8", 6mm and 3mm
Standard Probe Lengths: 6" for 1/4" & 1/8" Diameters, 160, 260 & 360mm for 6mm and 3mm Diameters
Sensor: Pt100 (100 Ohms at 0°C, .00385 TCR (alpha)) Standard, Pt1000 and Other Options Available
Accuracy: Class A Standard (per IEC 60751), Others Available Upon Request
Temperature Range: -50 to 250°C Except for the Connector Which is 85°C Max
Insulation Resistance: 100 Megohms Minimum at 100VDC at Room Ambient
Response Time: 3 Seconds Max (63.2% Response) When Immersed in Water Flowing at 3 feet/sec
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† All dollar amounts on this site are shown in US currency.
Note: For 1000 ohm elements, change "100" in model number to "1000" at no additional charge.
For lengths longer than 6" or 360mm, change length of probe in model number to length required (examples: for 9.5" enter 0950, for 175mm enter "0175") and add $1 per inch or 25mm to the price.
For 3mm diameter probe, change "M6" to "M3" in the model number, for 1/8" diameter change "1/4" to "1/8" in the model number at no additional charge.
For use in thermowells, please see the PR-21SL page for the spring loaded version of this product.
Ordering Example: (1) PR-21A-3-100-A-1/4-0600-M12-1 100 Ohm, Class A RTD with 1/4" diameter by 6" long probe, no mounting thread and M12 connector, $66.00, plus (1) PR-21F-3-100-A-M6-0160-M12-1 100 Ohm, Class A RTD with 6mm diameter by 160mm long probe, M10x1 mounting thread and M12 connector, $77.00, $66.00 + 77.00 = $143.00
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Part Number Builder |
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Option Descriptions
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(1)
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Mounting Thread
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Select
A for Non Threaded Housing
B for 1/2NPT
C for 3/8NPT
D for 1/4NPT
E for M8x1
F for M10x1
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(2)
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Element Specification
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Select
100-A for Pt100 Class A
1000-A for Pt1000 Class A
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(3)
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Probe Diameter
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Select
1/4 for 1/4 inch Probe Diameter (Fractional)
1/8 for 1/8 inch Probe Diameter (Fractional)
M6 for 6mm Probe Diameter (Metric)
M3 for 3mm Probe Diameter (Metric)
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(4)
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Probe Length
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Select
0600 for 6 inch Probe Length (Fractional Standard)
0160 for 160mm Probe Length (Metric Standard)
0260 for 260mm Probe Length (Metric Standard)
0360 for 360mm Probe Length (Metric Standard)
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(5)
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Wiring Arrangement as Shown
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Select
1 for Option 1 Per Diagram
2 for Option 2 Per Diagram
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NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
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