Patent ID: 7124598

Claim:
A combination pressure measurement/charging system, comprising: a conduit configured to be coupled to a refrigerant can and to a low-pressure side of a refrigerant system; a valve configured to control a flow of fluid through the conduit and, thus, between the refrigerant can and the low-pressure side of the refrigerant system, wherein the valve is further configured to allow a pressure of the low-pressure side of the refrigerant system to be assessed when the valve is closed; a first pressure gauge in fluid communication with the conduit and configured to be coupled to the low-pressure side of the refrigerant system, wherein the first pressure gauge is configured to operate the valve to control fluid flow through the conduit; and a second pressure gauge, wherein the second pressure gauge is configured to be coupled to a high-pressure side of the refrigerant system, and wherein the second pressure gauge is isolated from fluids that flow through the conduit.