Superheat gage with plug-in data module

Details Superheat gage with plug-in data module Superheat gage with plug-in data module

1995-12-11

1997-05-06

Voeltz, Emanuel T.

Boots, shoes, and leggings

364557, 364509, 364510, 62225, 622283, 62127, 62125, 73700, 73708, G01N 2700

Patent

active

056277709

ABSTRACT:
A gage having sensors for observing temperature and pressure. The gage includes a display and an internal computer. A data cartridge separate from the gage but with an electrical plug type connection to it is supplied. The data cartridge has a non-volatile memory on which is stored data relating pressure and saturation temperature of a volatile refrigerant. A program is stored within the gage. The program contains instructions for measuring temperature and pressure from a source, retrieving from the data cartridge saturated temperature data corresponding to the observed pressure, calculating superheat or subcooling and displaying in sequence the observed pressure in absolute or gage terms, the corresponding saturated temperature, the observed temperature and the superheat or subcooling. And there are switch means for displaying in sequence the observed pressure, the stored temperature corresponding to the observed pressure and the difference between the observed temperature and the saturation temperature which corresponds to the observed pressure as well as the maximum and minimum pressures or superheats observed over a period.

REFERENCES:
patent: 5070706 (1991-12-01), Waters et al.
patent: 5070732 (1991-12-01), Duncan et al.
patent: 5157928 (1992-10-01), Gaudet et al.
patent: 5265431 (1993-11-01), Gaudet et al.
patent: 5311745 (1994-05-01), Lockhart et al.
patent: 5392639 (1995-02-01), Manz
Cooper Instruments SH88A Superheat Calculator Flier, no date, pp. 1-4.

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