| Temperature Switches: What are They? |
Temperature switches are very responsive switches that create an alert when temperatures in certain equipment or areas exceed specific limits. Temperature switches are used for many warning systems and control systems. They are essential to preventing overheating in engines and other equipment, and they are used in most air cooling and de-icing systems as well.
Temperature switches come in a number of different forms which vary according to usage. Some are probes, some are surface sensors that stay in place and measure temperature on surfaces, and some temperature switches are embedded in actual machines or in special containers. In many cases, temperature switches need to stay accurate for a long time and need to be able to respond to a variety of temperatures. For this reason, many temperature switches are encased or housed in glass or metal. Housing temperature switches does not affect their accuracy but does allow them to remain accurate for longer periods of time. It also protects the temperature switches from the elements and from chemicals. Whatever they look like, temperature switches use mercury eutectic or mercury and platinum contacts to measure temperature correctly and react as needed.
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