4 Function description
4.1 Functional principle
Notice
The BEM 500 electronic unit can also be used for two separate single-line measurements.
Differential measurement
Extension stage
Components
Functions
000139
Basic
o
2 flowmeters
o
1 pick up each
o
1 BEM 500 electronic unit
o
Electronic evaluation
o
Differential measurement
o
2 relay outputs
o
2 analog outputs
o
2 pulse outputs
000140
Basic + temperature com-
pensation
o
2 flowmeters
o
1 pick up each
o
1 temperature sensor Pt100 each
o
1 BEM 500 electronic unit
o
Electronic evaluation
o
Differential measurement
o
Mass flow measurement
o
Temperature compensation
o
2 relay outputs
o
2 analog outputs
o
2 pulse outputs
000141
Basic + flow direction detec-
tion
o
2 flowmeters
o
2 pick up each
o
1 BEM 500 electronic unit
o
Electronic evaluation
o
Differential measurement
o
Flow direction detection
o
2 relay outputs
o
2 analog outputs
o
2 pulse outputs
000142
Basic + flow direction
det temperature
compensation
o
2 flowmeters
o
2 pick up each
o
1 temperature sensor Pt100 each
o
1 BEM 500 electronic unit
o
Electronic evaluation
o
Differential measurement
o
Flow direction detection
o
Mass flow measurement
o
Temperature compensation
o
2 relay outputs
o
2 analog outputs
o
2 pulse outputs
Tab. 7: Extension stages differential measurement
Operating instructions
OIE 12en-GB Edition 2020-03
13