ABB EDP300 digital positioner Why are they used?

The EDP300 digital positioner feature a high air capacity of 50 kg/h

(23 scfm) at 10 bar (145 psi) and is equipped with advanced

pressure-based diagnostic functions.

Why are they used?

Compliance to environmental regulations

In any production process, it is critical to ensure

stable and constant process conditions to

achieve optimum product quality and process

efficiency. Any control equipment must be capa

ble of eliminating any variations in the process

variables that could cause the process to consume

both more energy and consumables than normal,

pushing up production costs. The stability of the

downstream control loop may also be affected,

impacting on both product quantity and quality.

With the compressed air used by valve posi

tioners being around ten times more expensive

than electricity, accurate control is essential to

minimizing plant overheads as well as eliminating

potential problems in the downstream process.

The solution – accurate measurements for

maximum energy efficiency

Thanks to an (innovative control algorithm taken

from the field of robotics, the EDP300 positioner

stands out thanks to its speed and accuracy.

Overshooting and slow recovery times are both

prevented, allowing the EDP300 to significantly

optimize compressed air consumption, energy

efficiency and the ʹecological footprintʹ of pneu

matic control circuits.

Subsequently, the EDP300 is able to help reduce

cost with its unique electro-pneumatic system,

providing unsurpassed low air/gas consumption

at steady state. The EDP300 can also be used in

applications with natural gas as the supply energy,

eliminating the need for compressed instrument

air. ABB is the only supplier able to offer customers

a premium positioner that features these pneu

matic properties.