Hart protocol comprises of a digital data transfer and communication over existing 4 to 20 mA wiring, requiring no additional power supply or wiring to the Model SP500 electro-pneumatic digital positioner. Through the protocol, the positioner can be configured and process parameters updated or modified remotely using a PC or handheld device.

Spirax Sarco Inc. • (800) 883-4411
www.spiraxsarco.com/us