Gas flow, pressure and BTU/hour analyzer with a smart device

A system for monitoring gas flow and pressure to a gas device, the system comprising:

• an analyzer configured for temporary installation in-line and upstream of a fluid network, the analyzer including:
• a housing having an elongated flowtube with an inlet for receiving an entirety of the gas flow and an outlet:
• an obstruction situated in the elongated flowtube to create a pressure differential so that a portion of the gas entering the elongated flowtube is scavenged;
• and
• a pressure sensor in fluid communication with the elongated flowtube that generates a signal related to a pressure of the scavenged gas;
• and
• a device using a wireless communication protocol for receiving the signal from the pressure sensor, the device having a user interface and is configured to monitor, store and display data, wherein the device can present the flow of gas and a capacity of the flow of gas to a user based on the signal,
• wherein the analyzer is loaded with performance curve generated using ambient air, the performance curves being a set of differential pressure readings across an expected range of gas flow values.

A system for monitoring a gas flow and a pressure of the gas flow to a gas appliance in a fluid network comprising:

• an analyzer configured for temporary installation in-line and upstream of a fluid network, including:
• a first pressure sensor configured to generate a first signal related to a flow of gas being supplied to the gas appliance;
• a housing defining an inlet for ingress of the gas flow, an outlet for egress of the gas flow, and an interior in fluid communication with the inlet and the outlet, the housing having an interior divided into a flow portion and an electronics portion with an inlet passage and an outlet passage extending between the flow portion and the electronics portion, the first pressure sensor being in the electronics portion with the inlet port being aligned to the inlet passage and the outlet port being aligned to the outlet passage:
• a flow tube extending between the inlet and the outlet in the flow portion, the flow tube having:
• an outlet orifice aligned with the inlet passage:
• an inlet orifice aligned with the outlet passage;
• and
• an obstruction between the outlet office and the inlet orifice to create a pressure differential so that gas flow from the inlet to the outlet passes through the flowtube with a scavenge portion of the gas flow passing out the outlet orifice, through the inlet passage and into the inlet port of the differential pressure sensor and when the scavenge portion exits the outlet port, the scavenge portion passes though the outlet passage into the inlet orifice back into the fluid network;
• and
• a portable device configured to communicate with the analyzer, wherein the device has a user interface and is configured to monitor, store and display data, wherein the device can present the flow of gas and a capacity of the flow of gas to a user based on the first signal;
• wherein the analyzer is loaded with performance curves generated using ambient air, the performance curves being a set of differential pressure readings across an expected range of gas flow values.