The 535 is a 1/4 DIN single loop
process controller (SLC) designed to control any analog process variable
(temperature, pressure, flow level, etc.) in batch and continuous
processes. The 535's outstanding feature mix enables it to bring processes
under control faster, more accurately and easily than competitive SLC's,
PLC, and PC based control systems.
The 535 is widely considered to be a
best-in-class instrument due to three fundamental strengths.