||Thermometers with contactor
have made possible automation of temperature control and increased the safety
of energy consuming.
Electric contacts are switching mechanisms designed to be actuated by travel of
thermometer indicating pointer. Points where the switch will open or close
are regulated by adjustable (or fixed) "set" hands.
Thermometers equipped with this optional feature will turn alarm signals "on"
or "off", as each set-hand switching point is reached. And, where appropriate
relays are incorporated in the installation circuit, contacts will turn
electric motors, heaters, valves, etc. "On" or "Off".