Structural Concepts 73446
DEFROST PROBE/THERMISTOR
SKU: STC73446
Condition: NEW
The defrost mechanism in a refrigerator heats the cooling element (evaporator coil) for a short period of time and melts the frost that has formed on it. The resulting water drains through a duct at the back of the unit. Defrosting is controlled by an electric or electronic timer: For every 6, 8, 10, 12 or 24 hours of compressor operation it turns on a defrost heater for 15 minutes to half an hour.
A defrost thermostat opens the heater circuit when the evaporator temperature rises above a preset temperature, 40°F (5°C) or more, thereby preventing excessive heating of the freezer compartment. The defrost timer is such that either the compressor or the defrost heater is on, but not both at the same time.
There are many types of probes used in restaurant equipment for the measurement of temperature, humidity, liquid level, ice level, product or ingredient levels and other critical operating limits and control points (HACCP). A probe is a small device, especially an electrode, used for measuring, testing, or sensing and obtaining information. Probes are commonly thin and oblong, and may be flexible. They provide data output to other components to control operation of the equipment.
A thermistor is a temperature sensor commonly used in restaurant equipment such as ovens, refrigerators, ice machines and other foodservice equipment. It is a resistor having resistance that changes in response to temperature fluctuations. In other words, the resistance of a thermistor increases as the temperature decreases, and vice versa.
Thermistors are often used in restaurant equipment because they are accurate, reliable, and relatively inexpensive. They are also small and easy to install, which makes them a popular choice for use in a wide range of food production and storage equipment. In addition, thermistors respond quickly to changes in temperature, which makes them well-suited for use in applications where the temperature may change rapidly.
Thermistors are typically connected to a control system which allows the equipment to accurately monitor and control the temperature where temperature control is crucial for ensuring food safety and maintaining quality.
Established in 1972, Structural Concepts is a leading innovator of temperature-controlled food display cases for supermarket and foodservice operators.
HTS Category Code: 8208.30.00
UNSPC Category Code: 48100000
NAICS Code: 333241
Manufacturer Code: STC
Width: 3.75 in (9.53 cm)
Height: 1.5 in (3.81 cm)
Length: 6.0 in (15.24 cm)
Weight: 0.06 lbs (27.22 g)
Unit of Measure: Each (EA)