SITRANS F Ultrasonic flowmeters FST030 (HART)
Operating Instructions, 08/2017, A5E35971532-AC
113
Note
Device specifications
Siemens makes every attempt to ensure the accuracy of these specifications but reserves
the right to change them at any time.
Table 10- 1 Power supply
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)
Table 10- 2 HART communication