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Type T Fiberglass Thermocouple Wire, 20 AWG (100ft Roll)
This Type T Fiberglass Thermocouple Extension Wire (20 AWG, 100ft Roll) is engineered to accurately transmit signals from your thermocouple sensor to the readout device, ensuring precise temperature measurement. The fiberglass insulation provides excellent resistance to high temperatures, making it ideal for demanding industrial environments.
Understanding Thermocouple Extension Wire: Thermocouple extension wire is crucial for maintaining the integrity and accuracy of your temperature readings over longer distances. It's designed to carry the thermocouple's millivolt signal without significant degradation. For accurate measurements, the extension wire material must precisely match the thermoelement materials of the thermocouple type (e.g., Type T, Type K) being used. This prevents errors caused by unwanted thermal EMFs.
When to use Copper Wire: If your thermocouple assembly includes a transmitter, standard copper instrumentation wire is typically used instead of thermocouple extension wire. The transmitter converts the thermocouple signal into a scalable 4-20mA signal, which can then be transmitted over copper wire to your process control equipment.
RTD Sensors and Wiring: Resistance Temperature Detector (RTD) sensors operate differently, measuring resistance rather than generating a voltage. They utilize ordinary copper instrumentation cable to send this resistance signal to the recording, readout, or control device. Similar to thermocouples, if an RTD sensor assembly incorporates a transmitter, copper wire will then be used to send the converted 4-20mA signal.
Pyromation's Extensive Selection: Pyromation is your trusted source for high-quality thermocouple grade and extension wire, along with various wire insulators. We stock a comprehensive range of sizes and gauges, including specialized constructions like multi-pair thermocouple extension wire and RTD cable, to meet diverse application requirements.
ASTM/ANSI Designations for Precision: Thermocouple and extension wires are typically ordered and specified according to ASTM/ANSI designations, which ensure adherence to specific calibration standards and material compositions.
Common Thermocouple Types (ASTM/ANSI Designations):
- Type K: Chromel®/Alumel®
- Type J: Iron/Constantan
- Type T: Copper/Constantan
- Type E: Chromel®/Constantan
- Type N: Nicrosil®/Nisil®
- Type S: Platinum/Platinum (10% Rhodium)
- Type R: Platinum/Platinum (13% Rhodium)
- Type B: Platinum (6% Rhodium)/Platinum (30% Rhodium)
Product Details: Pyromation T20-1-304 Type-T Fiberglass Thermocouple Wire, 20 AWG, 100ft. Roll. Ideal for applications requiring robust, high-temperature insulation and reliable signal transmission for Type T thermocouples.