Help with Thermocouple Wire specifications:
Thermocouple Type
Back to Top
|
| ||
| Base metal thermocouples can measure different temperature ranges, depending on sensor material. Each type designation represents a specific metal type and temperature range. | |||
| Your choices are... | |||
| E | Chromel / Constantan; Typical temperature range of (-270° - 1000° C). | ||
| J | Iron / Constantan; Typical temperature range of (-210° - 1200° C). | ||
| K | Chromel / Alumel; Typical temperature range of (-270° - 1372° C). | ||
| N | Nicrosil / Nisil; Typical temperature range of (-270° - 1300° C). | ||
| T | Copper / Constantan; Typical temperature range of (-270° - 400° C). | ||
| B | Platinum (30%)/ Rhodium; Typical temperature range of (0° - 1820° C). | ||
| S | Platinum (10%)/ Rhodium; Typical temperature range of (-50° - 1768° C). | ||
| R | Platinum (13%)/ Rhodium; Typical temperature range of (-50° - 1768° C). | ||
| W | Tungsten / Rhenium; Typical temperature range of (0° - 2300° C). | ||
| Specialty / Other | Other unlisted, specialized, or proprietary thermocouple wire type. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
Temperature Rating
Back to Top
|
|
| ||
| Temperature Range | The maximum temperature, minimum temperature, or temperature range that the thermocouple wire can function within. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
Configuration
Back to Top
|
|
| ||
| Elements / Pairs | Number of thermocouple wire pairs or elements in the thermocouple cable. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
| Gauge Thickness | The numerical gauge or AWG thickness of the wire product. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
| Diameter | Diameter of the thermocouple wire. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
| Length | Length of the thermocouple wire. | ||
| Search Logic: | User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria. | ||
| |||
Insulation Material
Back to Top
|
|
| ||
| A thermocouple may be insulated. Some thermocouples may have multiple options available for insulation. | |||
| Your choices are... | |||
| Bare / None | Thermocouple is bare or has no insulation. | ||
| Ceramic | Ceramic insulation such a cloth sleeve or tape manufactured from alumina, mullite, or silica fibers. Nextel ceramic fiber is a common ceramic insulation type. | ||
| Cotton | Insulation manufactured from a cotton cloth sleeve, wrap, or tape. | ||
| Fiberglass | Fiberglass insulation such a cloth sleeve or tape manufactured from glass or fused silica fibers. E-glass and s-glass fibers are commonly used. | ||
| Mineral (e.g., Mica) | Insulation manufactured from a mineral such as mica, silica, alumina, or another oxide material. | ||
| Plastic | Plastic insulation such a cloth sleeve, film, or tape manufactured from a polymer or plastic material. | ||
| Fluoropolymer (e.g., Teflon®) | Insulation manufactured from a fluoropolymer film or tape such as Teflon, Tefzel, polytetrafluoroethylene, PTFE, or TFE. | ||
| Polyamide (e.g., Nylon) | Insulation manufactured from a polyamide film, tape, or cloth sleeve such as Nylon or Nylon fibers. | ||
| Polyimide (e.g., Kapton®) | Insulation manufactured from a polyamide film, tape, or cloth sleeve such as Kapton®. | ||
| Vinyl / PVC | Insulation manufactured from a vinyl or PVC film, tape, or cloth sleeve. | ||
| Other | Other unlisted, specialized, or proprietary insulation. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
Features
Back to Top
|
|
| ||
| Your choices are... | |||
| Extension Wire | Extension wire is used to connect thermocouple elements or probes to a measuring instrument where the instrument is located away from the thermal process being measured. The connections to the extension wires, being of like metals, do not generate a voltage. Extension grade thermocouple wires are ideally made of the same metals as higher-grade thermocouple elements or probes in order to avoid generation of unwanted voltages from additional dissimilar material junctions in the system. Copper extension wires are used with noble or platinum thermocouples because the cost of platinum extension wires would be prohibitive. The extension wire selection allows for a very similar thermal coefficient of EMF to the thermocouple over ambient or operating temperatures. | ||
| Metal Sheathed | The thermocouple cable or wire has a protective metal sheath encasing the insulation and theromcouple pairs. Metal sheath is composed of stainless and nickel alloys such as Inconel and Hastelloy, which are used to provide heat, oxidation, and corrosion protection. | ||
| Shielded | The thermocouple wire is shielded against electromagnetic interference. | ||
| Special Limits of Error (SLE) | The level of impurities in the wire material controls the thermocouple wire errors. Standards allow errors as much of 2.2°C. Thermocouples manufactured with tighter metallurgical controls and to SLE standards can have error less than 0.5°C. Calibration of the finished wire can also reduce errors and improve temperature measurement accuracy. | ||
| Vacuum | Thermocouple wire is suitable for vacuum applications. The wire and wire insulation have low outgassing characteristics. | ||
| Specialty / Other | Other unlisted, specialized, or proprietary thermocouple wire features. | ||
| Search Logic: | All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches. | ||
| |||
