Operation; Overview; Three-Button Operation; Figure 14 - Three-Button Option - Honeywell STT850 SMARTLINE User Manual

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 STT850 optional three-button interface provides a user interface and operation capability without
opening the transmitter.
Figure 13 shows the location of the three-button option and the labels for each button.
Figure 14 – Three-Button Option
Revision 1 STT850 Temperature Transmitter User's Manual Page 19