In addition to their durability, these intrinsically-safe positioners provide a high degree of accuracy and are easy-to-operate. A single rotary pushbutton is all that is required for start-up; turn to select parameters and push to activate them.

This method of operation is still possible in hazardous areas because the shaft design of the rotary pushbutton through the housing is explosion-proof. The positioner is housed in a rugged enclosure. Even if an explosive atmosphere forms and ignites, the enclosure will withstand the explosion preventing the passage of flames out to the explosive surroundings.

An easy-to-read LCD ensures that relevant data is visible at a glance and regardless of the valves mounting position, data is never displayed upside down because the display can be rotated by 180° at the push of a button. 

The positioners can be configured on-site, or by using HART communication, while the additional option of fully integrating EXPERT valve diagnostics into the positioner, provides all the necessary information for predictive maintenance.