The SMAN2 and SMAN3 digital manifolds automatically calculate target superheat, so you don’t have to worry about guesswork or manual calculations, says the company. They also have the ability to perform a linear adjustment of the pressure sensors based on refrigerant type, temperature, and pressure, and you can do it right in the field. With the SMAN3 you also get a built-in micron gauge with resolution from 50 to 9,999, plus micron alarm to set to a chosen micron level.

Fieldpiece Instruments Inc., 1900 E. Wright Circle, Anaheim, CA 92806; 714-634-1844; 714-634-1848 (fax);;