Pressure sensor and pressure relief valve testing

Abstract

A pressure sensor assembly (19) for remote testing of a pressure sensor (15) adapted to monitor the air pressure developed in an interior (21) of a container (1), the pressure sensor assembly (19) comprising: an enclosed chamber having (25): a first opening (31) arranged to communicate with the interior of the container (1); and a second opening (33) arranged to communicate with the pressure sensor (15) for monitoring air pressure developed in the interior (21) of the container (1); wherein the chamber (25) defines a channel for transmission of pressure between the first opening (31) and the second opening (33) and wherein a constriction (55) is formed in the channel, the pressure sensor assembly (19) further comprising: an air injection system (45) adapted to inject a test pulse (47) of air into the enclosed chamber (25), between the constriction (55) and the second opening (33), wherein the constriction (55) is configured to create a back pressure in the enclosed chamber (25) in response to the test pulse of air (47), and functional operability of the pressure sensor (15) is verified based on the pressure measured in response to the test pulse of air (47).

Dependencies are inferred from the claim text.