What is a Pyrometer?
A Pyrometer is essentially a high temperature thermometer. It is designed to indicate temperatures well into the firing range. There are two, very common styles of pyrometers used for our type of kiln work: Analog and Digital. Analog is basically a mechanical devise which sports a "needle", while Digital is electronic. The Pyrometer shown above is an Analog style. An example of a Digital style would be that which is found on the RampMaster II controller.

How does a Pyrometer Work?
Connected to the pyrometer is a thermocouple. This thermocouple is the temperature sensor. It's inserted into the firing chamber. The thermocouple produces a very low voltage which changes depending upon the temperature seen at the tip of the thermocouple. This voltage is applied to the pyrometer which reacts by moving or deflecting the needle a certain amount. If we put a scale (numbers) behind the needle we can get a reading of the temperature. This same concept is used for digital or electronic pyrometers as well.

Does the Pyrometer Shut the Firing Off at the End of the Firing?
No. The sole function of the Pyrometer is to indicate temperature.