Siemens FST020 Function Manual page 68

Setup
3.4 Inputs and outputs
Bidirectional flow across zero with positive scaling
①
②
③
④
⑤
⑥
⑦
Current output setting
● Process value = Mass flow
● Direction = Bidirectional
● Loop current scale = 4-20 mA US
● Upper range value = 400 kg/h
● Lower range value = -100 kg/h
● Fail-safe behaviour = Minimum current
● Low flow cut-off = 25 kg/h
66
Lower range value
Low flow cut-off
Upper range value
Upper saturation limit
Lower saturation limit
Lower fault current
Span
FST020 Function manual
Function Manual, 09/2017, A5E42949526-AA