Description; Overview; Design - Siemens SITRANS F Operating Instructions Manual

Description

3.1

Overview

SITRANS FST020 ultrasonic flow meter systems consist of a transmitter and a sensor. The
following table lists the available combinations of transmitters and sensors.
Transmitter
FST020
3.2

Design

The transmitter reads the measured process values from the sensor and calculates derived
values. It provides Modbus communications, 1x 4-20ma, 1x relay, and 1x Pulse/Frequency,
USB service port, and a local display. It also adds functionalities such as totalizers, access
control, diagnostics, and configuration. The local user interface consists of a display and four
buttons for user interaction.
The transmitter has a modular design with discrete, replaceable electronic modules and
connection boards to maintain separation between functions and facilitate field service. All
modules are fully traceable and their provenance is included in the transmitter setup.
The SITRANS FST020 is available as:
Wall mount housings: AC and DC
Figure 3-1
FST020 IP65 NEMA 4X
Operating Instructions, 09/2017, A5E41425845-AB
DC Wall Mount housing shown
Sensor type
FSS200 family
DN 15 to DN 10m (0.5" to 360")
3
15