Monitoring Temperatures Flashcards
consist of 2 types of metal coiled together that expand when heated
Bi-metallic (baby dial) thermometer
sensor is 2- 2 1/2 inches from the tip
Bi-metallic (baby dial) thermometer
not practical for thin foods
Bi-metallic (baby dial) thermometer
require frequent calibration
various response times
Bi-metallic (baby dial) thermometer
contains a ceramic heat-sensitive resistor in the tip
thermistor
sensor is 1/2 in from the tip
thermistor
used to measure thin foods
thermistor
factory calibrated
thermistor
10 sec response
thermistor
measures temperature at the junction of two fine wires in the probe tip
thermocouple
can measure very thin foods
thermocouple
factory calibrated and on-site calibration
thermocouple
sensor is 1/4 inch from tip
thermocouple
digital reading within 2-5 sec
thermocouple
disposable, single use, cardboard thermometer with present temps of 140, 160, 170 F
T-Stick
sensor is 1/2 in from tip
5-10 second response time
T-Stick
plastic coated wax on the tip melts when desired temp is reached
T-Stick
hand held gun detects the amount of radiant energy by an object
infrared
factory calibrated
1 second response time
only used for surface temps
T-Stick
used to take temps of the primary containers without damaging the product
surface temperature
used to determine the temp of the air within the truck or unit
ambient air temperature
the purpose is to ensure the safety of the food is maintained
internal temperature
