Rev Up Your Skills for Minnesota's 2026 Boiler License – Steam Ahead with Success!

The instrument used to measure the pressure of steam in a boiler is a pressure gauge. This device provides a direct reading of the pressure within the boiler system, allowing operators to monitor steam pressure levels for safety and efficiency. A pressure gauge typically consists of a dial that displays the pressure value, which can be either in psi (pounds per square inch), bar, or other units of measurement.

Pressure gauges are critical in boiler operation because they enable real-time monitoring of pressure conditions, ensuring that they stay within safe operational limits. If the pressure becomes too high, it may trigger safety mechanisms like pressure relief valves to prevent catastrophic failures.

In contrast, the other instruments listed serve different purposes. A thermometer measures temperature, a manometer typically measures pressure differences (usually in fluids), and a pneumatic transmitter is used to send pressure information to a control system but does not directly show the pressure reading on a dial like a pressure gauge does.