The ASH3 Superheat Accessory Head allows for the measurement of superheat for R22 and R410A. Both suction-line pressure and temperature are measured simultaneously to calculate superheat. The ASH3 also includes the ATC1 Pipe Clamp Thermocouple. The spring-loaded thermocouple clamp is designed to take suction-line pipe temperatures.

Fieldpiece Instruments Inc., 580 W. Central Ave., Suite A, Brea, CA 92821; (714) 257-9060; fax (714) 257-9069;