PULSAMATIC - Electronic Stroke Length Controller
The PULSAMatic control shown on this PULSA Series 7660H HYDRATUBE^® pump provides 0 to 100% electric stroke length adjustment from an analog instrument signal.

ELMA - Electronic Lost Motion Actuator
A PULSA Series 880 is shown here with an ELMA electric stroke length control and a nonmetallic head. A typical application is the automated addition of a hydrochloric acid using an analog instrument signal.

Pneumatic Stroke Length Adjustment
The PULSA 7120H shown here features a HYDRATUBE^® head, pneumatic stroke length adjustment and Chemalarm leak detector. A typical application is the addition of concentrated sulphuric acid to a water stream using automatic flow control.