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PR-20
Short RTD Probe
Models In Stock
- 2' Length is Ideal for Applications with Space Restrictions
- Transitions Directly to Lead Wires (No Transition Fitting)
- Temperature Range: PFA: -50 to 260°C (-58 to 500°F) Fiberglass: -50 to 450°C (-58 to 842°F) Depending on Cable Selection
- High-Accuracy, 100 Ω, Class 'A' DIN Platinum Elements per IEC60751 (alpha = 0.00385 Ω/Ω/°C)
PR-20
From
£
83.34
Models In Stock
Product Overview
- Accuracy Class A
- Nominal Resistance 100 Ω
- Nominal Resistance/Curve Note High-Accuracy, 100 Ω, Class “A” DIN Platinum Elements per IEC751 (alpha = 0.00385 Ω/Ω/ºC)
- Number of Wires 3
- Probe Length 2 in
- Probe Type Short RTD Probe
- Series ID PR-20
- Sheath Material 304 Stainless Steel
- Temperature Coefficient 0.00385Ω/Ω/°C
- Temperature Coefficient Note α=0.00385Ω/Ω/°C
- Temperature Probe Style Immersion Probe
- Temperature Sensor Type RTD
- Wire Gauge 26 AWG
- Wire Type Stranded
Supported Applications
The Omega PR-20 Short RTD Probe series provides compact temperature sensing for applications with space restrictions. These general-purpose sensors are designed for most liquid and air applications, featuring a direct transition from the probe to lead wires without an intermediate transition range.
- Liquid and air monitoring
- Space-constrained installations requiring short insertion lengths
Operating Conditions & Performance
The PR-20 series utilizes high-accuracy 100 Ω Class 'A' DIN Platinum elements per IEC751 (alpha = 0.00385 Ω/Ω/°C). Measurement ranges depend on the selected lead wire insulation material:
- -50 to 260°C (-58 to 500°F) for PFA insulation
- -50 to 450°C (-58 to 842°F) for fiberglass insulation
The probe features a compact design with an insertion length of 2 inches. The epoxied end should not be immersed directly into liquid.
Configuration Options
The series supports multiple configurations across sensor construction, dimensions, and termination options:
- Sensor Construction: Available in 2-, 3-, or 4-wire constructions. Note that 4-wire constructions are not available in 1/4" diameters.
- Diameters: Probe stem sizes of 1/8, 3/16, or 1/4 inch.
- Lead Wire: Standard length is 1 m (40") using #26 AWS stranded nickel-plated copper. Insulation options include PFA or fiberglass.
- Terminations: Options include LUG, OTP, and MTP connectors available as accessories.
Key Product Differences
The PR-20 series model number follows the format: PR-20-2-100-<DIAMETER>-<WIRE_COUNT>-<INSULATION>-<TERMINATION>. Specific variations include:
- Diameter Selection: 1/8, 3/16, or 1/4 inch probe diameters.
- Wire Count: The model number digit for wire count changes from "2" to "3" for 4-wire configurations (additional price applies).
- Insulation Type: Designated by suffix letters; 'E' indicates PFA insulation, while 'G' indicates fiberglass insulation.
- Custom Lengths: For lead wires longer than 40", add "(-desired length in inches)" to the model number for additional price.
Accessories include compression fittings (SSLK series) compatible with 1/8, 3/16, and 1/4 inch probes featuring 1/8 or 1/4 male NPT connections. The DPI32 1/32 DIN panel meter is also listed as a supporting accessory.
PDFs & Manuals
