METHOD OF CALIBRATING OVERHEATING SENSOR Russian patent published in 2012 - IPC F25B41/06 F25B49/00 

FIELD: physics.

SUBSTANCE: disclosed is a method of calibrating an overheating sensor (5) for a refrigeration system, according to which: the amount of liquid coolant in the evaporator (1) is increased, for example, by increasing the degree of opening of the control valve (3); at least one parameter, for example, temperature of the coolant coming out of the evaporator (1), is monitored, from which the overheating value of the coolant can be determined; the possibility of reducing said parameter is provided; when the value of the monitored parameter is set at an essentially constant level, the corresponding overheating (SH) value is taken as zero; the overheating sensor (5) is calibrated in accordance with said level at which the overheating value (SH) is equal to zero. A constant level of the value of said parameter indicates that the liquid coolant can pass through the evaporator (1) and, consequently, the overheating value of the coolant at the outlet of the evaporator (1) is equal to zero.

EFFECT: disclosed method enables to calibrate an overheating sensor at the operating site of the refrigeration system, owing to which there is no need to calibrate said sensor at the manufacturing plant and, as a result, the need to monitor conformity of calibration data of a particular sensor.

11 cl, 10 dwg