1 ST 800 Pressure Transmitter User’s Manual Revision 15
1 Introduction
1.1 Overview
This section is an introduction to the physical and functional characteristics Honeywell’s family of ST
800 SmartLine pressure transmitters.
1.2 Features and Options
The ST 800 SmartLine pressure transmitter is available in a variety of models for measuring Differential
Pressure (DP), Gauge Pressure (GP), and Absolute Pressure (AP). Table 1 lists the protocols, human
interface (HMI), materials, approvals, and mounting bracket options for the ST 800.
Table 1 – Features and Options
Standard/Available Options
HART version 7, Digitally Enhanced (DE), Fieldbus
Display Options
(Basic, Standard and Advanced)
Basic Display
•
Three-button programming (optional)
•
Languages: English only
Standard Display (HART
only)
•
Two integral buttons programming (optional)
Languages: English and Russian
Advanced Display
•
Three-button programming (optional)
•
Languages: English, German, French, Italian,
Spanish, Turkish, Russian, Chinese, and
Japanese
Single, Dual and Triple Calibrations.
Approvals
See Appendix C for details.
FM, CSA, ATEX, IECEx, SAEx, INMETRO, NEPSI, EAC,
KOSHA, MARINE and MID
Angle/flat carbon steel/304 stainless steel, Marine 304 stainless
steel, 316 Stainless Steel
The three-button option is available for the advanced and basic displays. The two-
button option is available for the standard display.
Also, for the advanced and basic displays, the two-button option is used only for span and zero
correction and not for display navigation.
1.2.1 Physical Characteristics
As shown in Figure 1, the ST 800 is packaged in two major assemblies: the electronics housing and the
meter body. The elements in the electronic housing respond to setup commands and execute the software
and protocol for the different pressure measurement types. Figure 2 shows the assemblies in the
electronics housing with available options.
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