High-pressure switches are used on many refrigeration systems. They are designed to shut down a compressor if the system’s high pressure rises above an unsafe level, not allowing the compressor to ...

SPL may be measured with a SOUND LEVEL METER weighted according to a specific frequency response pattern and termed SOUND LEVEL. The electroacoustic equivalent to SPL is measured with a VU METER.

Today on Weekly Boiler Tips Jude dives into various types of level controls—how they work and their applications. 0:34 Trough style valve 2:12 Bi Level Probe 3:55 McDonnell Miller 150 5:26 McDonnell ...