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SITRANS F Ultrasonic flowmeters FST030 (Modbus)
Operating Instructions, 08/2017, A5E37367739-AC
115
Technical data
10
Note
Device specifications
Siemens makes every attempt to ensure the accuracy of these specifications but reserves
the right to change them at any time.
10.1
Power
Table 10- 1 Power supply
Description
Specification
Supply voltage
•
100 to 240 V AC, 47 to 63 Hz
•
20 to 27 V DC
Power consumption
•
20W / 22VA
Environmental conditions:
•
Transient over voltages up to the levels of
overvoltage category II
•
Temporary over voltages occurring on mains
supply only
•
POLLUTION DEGREE 2.
•
MAINS supply voltage fluctuations up to ±10
% of the nominal voltage.
•
Altitude up to 2 000 m
Reverse polarity protection (y / n)
Y
Galvanic isolation
2500 V AC
10.2
Modbus interface
Table 10- 2 Modbus communication
Description
Specification
Protocol version
Modbus RTU
Default transmission rate
19200 bit/s
Содержание SITRANS F Series
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