SIPOS 5 Flash basics

Precise process control is increasingly demanded. An actuator needs to both, react sensitively to small changes, which it can only do by low speed corrections, but also react rapidly where large deviations between the actual value and setpoint exist.

The SIPOS 5 Flash is able to manage these apparently conflicting requirements using the ‘external analog speed setpoint’ function. The actuator can be operated at different speeds without changing parameters with the output speed specified by a 0/4...20 mA signal at the second analog actuator input.

The result is not only greater fluid control precision, but pressure surges in pipes can be effectively prevented by using low speed valve closure. In addition using the maximum actuator travel speed, cavitation, if the flow speed is increased due to pressure, can generally be avoided. In this way the SIPOS 5 Flash provides protection against transient stress and wear on the pipeline and valve.