Thermistor_operated_temperature_alarm_that_can_ring_a_bell_turn_on_a_light_or_ring_a_buzzer_Any_temperature_between_115°_and_165°F_can_be_detected

Published:2009/7/20 5:57:00 Author:Jessie | From:SeekIC

Thermistor-operated temperature alarm that can ring a bell, turn on a light or ring a buzzer. Any temperature between 115° and 165°F can be detected. To calibrate adjust the following spacings of the magnet from the coil for the indicated temperatures: 1.5 inches for 117°F, t inch for 129°F, 0.75 inch for 138°F, 0.625 inch for 149°F and 0.5 inch for 164°F. Then immerse R1 in the medium heated to the desired point to sound the alarm. Turn on 51 and adjust the bias magnet to sound the alarm. Secure the magnet (courtesy General Electric Company).



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