Which instrument is commonly used to measure refrigerant pressure?

The instrument that is commonly used to measure refrigerant pressure is the pressure gauge. This device is specifically designed to measure the pressure of gases and liquids, making it essential in refrigeration work. In a refrigeration system, knowing the refrigerant pressure is critical for diagnosing system performance, ensuring efficient operation, and preventing damage.

Pressure gauges can provide valuable readings that indicate the state of the refrigerant, helping technicians determine if the system is undercharged, overcharged, or experiencing issues such as blockage or leaks. This data aids in the proper servicing and maintenance of refrigeration systems.

While a manifold gauge set also includes pressure gauges for measuring refrigerant pressures, it is a more complex tool that incorporates additional functions like temperature measurement and service ports. A thermometer measures temperature, which is not directly related to refrigerant pressure. A multimeter is used primarily for electrical measurements, not for measuring pressure. Consequently, the pressure gauge remains the most straightforward and commonly used instrument for this specific purpose.