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SPDT

   Also found in: Wikipedia 0.07 sec.
AcronymDefinition
SPDTSingle Pole, Double Throw
SPDTSingle Point Diamond Turning (precision lathe used in optical fabrication)


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When the unit eventually senses the presence of dry material via the restricted motion of the paddle, the reversing torque actuates one or two internal SPDT (single pole, double throw) switches that can control up to two operations, such as sounding an alarm or shutting off a conveyor belt or feeder.
Bin level indicator. (Literature: instruments) by Rubber World
Primary and secondary outputs include SPDT electromechanical relays, solid-state relays rated up to 30 amps, and 4-20 mA.
Temperature sensors, monitors, controls by Plastics Technology
Primary and secondary outputs include SPDT electro-mechanical relays, solid-state relays rated up to 30 amps, and 4-20 mA.
Temperature sensors, monitors, controls: product lines reviewed by Plastics Technology
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