Revision 10 ST 800 SmartLine Pressure Transmitters User’s Manual Page 25
4 Operation
4.1 Overview
This section provides the information and processes involved for both Digitally Enhanced (DE) and
HART operation using the 3-button option.
4.2 Three-Button Operation
The ST 800 optional three-button interface provides a user interface and operation capability without
opening the transmitter. Figure 17 shows the location of the three-button option and the labels for
each button.
Figure 17 – Three-Button Option