KRAL BEM 500 - Page 13

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
detection + 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