Wire thermocouples are a low cost solution to temperature measurement in ranges below 900° F. Selecting the wire covering depends on the maximum temperature at the measurement site and the industrial environment in which the sensor is being used. With temperatures below 221°F PVC coverings are often used. Above the PVC range there are selections between Teflon® type of FEP to 400°F and PFA to 500°F. Still in the lower cost group and still handling a continuous use up to 900°F is fiberglass covering. Higher temperatures may be appropriate in these types for a one time use of the sensor.
As a custom manufacturer of thermocouple replacements we also provide other wire covering for specialty applications. Wire thermocouples can be protected from abrasion and other environmental hazards by a tube covering, flex armor, stainless steel over braid or Inconel® over braid.
Most often the hot end of a wire thermocouple is an exposed junction. Terminations such as thermocouple connectors and thermocouple fittings can be adapted to many different industrial operating requirements. A ring terminal (various sizes) or spring adjustable bayonet lock cap along with a number of standard thermocouple connectors. The pictures below show many thermocouple fitting and thermocouple connector selections. We are a custom manufacture of thermocouples and often build sensors to customer provided drawings.
Benefits of wire thermocouples:
- Low cost
- Fast response time
See section on connector systems for details or thermocouple connector and thermocouple connectors. Thermocouple style page that follow has pdf links to detail descriptions of ANSI types.