The 2132 is used principally as an over-temperature protection device. It also used elsewhere within other product groups.
All Carbolite furnaces and ovens are designed to 'fail safe' should control of the elements fail. None the less use of an over-temperature protection device is recommended for situations where there will be unattended operation of the device or simply where protection of valuable loads or the furnace is required.
It is also used where space does not permit the use of a larger format controller and also as the end zone 'slave' controllers for 3 zone tube furnaces.
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