Spring Loaded RTD Sensors with Molded M12 Connectors For Use in Thermowells

PR-31SL

^£128.28 PR-31SL-3-100-A-0600-M12-1

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4-Wire, Class-A Pt100 RTDs Can be Used with 2, 3 or 4-Wire Systems
Temperature Range: -50 to 500°C (-58 to 932ºF)[250°C (482ºF) Max at Connector]
M12 A-Coded Male Overmolded Connectors for Easy Installation, 2 Wiring Arrangements Available
Fits All Standard 0.260" Bore Thermowells (Sold Separately)
Probe Length Equals Thermowell Stem Length
Adjustable Self-Griping Spring Allows for Use in Shorter Length Thermowells
M12 Extension Cables, 4 to 20 mA Transmitters and Other Accessories Available
Large Selection of Industrial Thermowells

RTD (PT100) Probes, Elements and Assemblies - View related products

Description

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.

Our RTD sensors with M12 connections provide for easy and efficient installation or removal of these sensors for preriodic calibration, troubleshooting or replacement. Gone are the days of having to pull extension cables from cable trays, or disconnect the probe leads from screw terminals in a connection head, in order to calibrate or replace the sensor. Now you simply disconnect the sensor from the extension cable saving cost and downtime. The M12 connector also provides two other important features, the keyed connector eliminates the potential for mis-wiring during installation, and the elimination of screw terminals results in a more robust connection that will not loosen when exposed to heating and cooling cycles.

The Series PR-31SL Spring Loaded RTD has been designed to provide our customers with a simple and effective way to adapt our M12 enabled RTD probes for use in thermowells. To insure the best possible performance, the PR-31SL RTD has a spring loading feature that maintains contact between the probe and thermowell under static and vibration conditions. This helps to maintain good heat transfer between the thermowell and probe, as well as dampening the effect of vibration on the sensor. With a demonstrated ability to withstand 10gs of vibration between 10 and 500HZ (for 6" long and shorter probes per MIL-STD-202G, Method 204D, Test Condition A), this probe has shown its ability to withstand real-world conditions.

To select the right length probe for your application, simply measure the depth of the bore in the thermowell (the length from the top of the thermowell to the bottom of the bore as shown as the "Thermowell Stem Length" in the sketch below).

The PR-31SL sensor assembly is designed to fit into a thermowell with a stem length equal to that specified in the model number. Simply slide the sensor assembly into the thermowell until bottomed and then compress the spring while making the 1/2NPT connection. Thread sealant tape or thread compound may be used on the 1/2NPT mounting thread to insure easy removal at a later time. The position of the self-gripping spring can also be adjusted so that the sensor can be used in a shorter thermowell, simply twist the spring while sliding it along the probe stem until the needed position is reached.

The PR-31SL can also be used as a back-up sensor for a variety of applications. The spring loading feature can be adjusted to fit a variety of thermowells. The spring loading fitting can be removed altogether and replaced with a compression type fitting if a fixed mounting is needed. The probe (less spring and hex fitting) can also be used as a stand alone RTD probe. This flexibility in mounting options, as well as the simplified and robust connection provided by the M12 connector, makes the PR-31SL the perfect solution for a wide variety of applications.

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-31SL 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.

Standard Probe Diameter: 1/4"

Standard Probe Lengths: See Thermowell Stem Lengths in The Order Table Below.

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 500°C Except for the Connector Which is 250°C Max.

Insulation Resistance: 100 Megohms Minimum at 100VDC at Room Ambient Temperature.

Vibration Resistance: 10gs from 10-500Hz per MIL-STD-202G, Method 204D, Test Condition A (6" long and shorter).

Place Order(Specify Model Number)

Part Number/ Desc.

Qty

Description

PR-31SL-3-100-A-0250-M12-1

£112.58

Availability: 6 weeks

Resistance at 0°C 100.00 ±0.06Ω, Class Accuracy Class A, Thermowell Stem Length 2½"

PR-31SL-3-100-A-0400-M12-1

£121.60

Availability: 2 weeks

Resistance at 0°C 100.00 ±0.06Ω, Class AccuracyClass A, Thermowell Stem Length 4"

PR-31SL-3-100-A-0600-M12-1

£128.28

Availability: 6 weeks

Resistance at 0°C 100.00 ±0.06Ω, Class AccuracyClass A, Thermowell Stem Length 6"

PR-31SL-3-100-A-0900-M12-1

£129.76

Availability: 2 weeks

Resistance at 0°C 100.00 ±0.06Ω, Class Accuracy Class A, Thermowell Stem Length 9"

PR-31SL-3-100-A-1200-M12-1

£133.68

Availability: 2 weeks

Resistance at 0°C 100.00 ±0.06Ω, Class Accuracy Class A, Thermowell Stem Length 12"

PR-31SL-3-100-A-1500-M12-1

Consult Sales

Availability:

Resistance at 0°C 100.00 ±0.06Ω, Class Accuracy Class A, Thermowell Stem Length 15"

PR-31SL-3-100-A-1800-M12-1

£143.51

Availability: 6 weeks

Resistance at 0°C 100.00 ±0.06Ω, Class Accuracy Class A, Thermowell Stem Length 18"

PR-31SL-3-100-A-2400-M12-1

£151.37

Availability: 6 weeks

Resistance at 0°C 100.00 ±0.06Ω, Class Accuracy Class A, Thermowell Stem Length 24"

† All amounts shown in EUR, GBP, or USD
Note: * Class A Accuracy = ±(0.15 + 0.002*t)°C where “t” = temperature in °C regardless of sign.
For the alternate wiring arrangement, change “-1” to “-2” in the model number, no additional cost.
For a probe length not listed up to 24", change the stem length in the model number to the required stem length (Example: 1250 = 12½") and use the price of the next longer sensor.
Ordering Example: (1) PR-31SL-3-100-A-0250-M12-1 Spring Loaded Pt100 Class A RTD Probe with Molded M12 Connector, to Fit into a Thermowell with a 2.5 inch Stem Length, £112.58 plus (1) PR-31SL-3-100-A-0600-M12-1 Spring Loaded Pt100 Class A RTD Probe with Molded M12 Connector, to Fit into a Thermowell with a 6 inch Stem Length, £128.28, £112.58 + 128.28 = £240.86

Part Number Builder

Build Your Part Number Below

	(1)	(2)	(3)		(4)
PR-31SL-3-				-M12-

Option Descriptions:

(1) Probe Resistance select from:
100 for 100 Ohms at 0C
1000 for 1000 Ohms at 0C

(2) Accuracy select from:
A for Class A per IEC60751
B for Class B per IEC60751

(3) Thermowell Stem Length select from:
0250 for 2.50 inches
0400 for 4 inches
0600 for 6 inches
0900 for 9 inches
1200 for 12 inches
1500 for 15 inches
1800 for 18 inches
2400 for 24 inches

(4) Wiring Configuration select from:
1 for See Wiring Detail
2 for See Wiring Detail

Note: All combinations may not be valid, check spec sheet for valid part numbers.