In addition to measuring pressure, what can a manometer also be used for?

A manometer is primarily a device used to measure pressure, but it also has important applications in the context of gas systems, particularly for testing gas leaks. When a manometer is connected to a gas line, it can help detect changes in pressure that may indicate a leak. If there is a decrease in pressure over time, this would suggest that gas is escaping from the system, allowing technicians to pinpoint the location and severity of the leak.

In terms of the other potential uses mentioned, measuring temperature requires a different type of instrument, such as a thermometer. Adjusting air shutters is usually done manually or with specific tools designed for that purpose and doesn't involve a pressure measuring device like a manometer. Additionally, while manometers can provide information useful in calibrating gas meters, the act of calibration typically involves more specific instrumentation and procedures designed to ensure the accuracy of gas measurement devices. Therefore, the specific function of leak testing distinguishes a manometer's application effectively.