Pressure measurement system for refrigeration system

Refrigeration – With indicator or tester – Diverse function indicators or testers

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62129, G05D 2300

Patent

active

053117450

ABSTRACT:
A pressure measuring system for a refrigeration system, such as a refrigeration system used in a commercial air conditioning system, comprises a converter (42) for converting a pressure being measured into a digital signal representing the measured pressure and a processor (54) for calculating a corresponding boiling point temperature for a selected refrigerant at the measured temperature. The system also includes a selector for selectively inputting the boiling point temperature-pressure relationship or coefficient of a selected refrigerant into the processor, as well as a display (60) for displaying the measured pressure and the calculated boiling point temperature.

REFERENCES:
patent: 4106306 (1978-08-01), Saunders
patent: 4114448 (1978-09-01), Merritt
patent: 4798055 (1989-01-01), Murray et al.
patent: 5209076 (1993-05-01), Kauffman et al.
patent: 5209400 (1993-05-01), Winslow et al.

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