Converter creates time proportional output from 4-20 mA signal
New APWM Series pulse control converter from Athena Controls mounts directly to a 3-32 Vdc SSR (solid state relay) to drive a process or temperature controller generating a time proportional output from a 4-20 mA signal.
The converter supports single- or three-phase operation, 50 or 60 Hz, and tolerates inputs less than 4 mA. Lever clamps are provided on the converter for the 4-20 mA input and the SSR’s power section provides easy connection to the line and load.
—Edited by Peter Welander, process industries editor, PWelander@cfemedia.com ,
Control Engineering Process Instrumentation & Sensors Monthly
Register here to select your choice of free eNewsletters .