114 UMG70XV3-4EN 12.01.2009
12 Advanced Measuring Functions
Two cut-off flows for each calculation channel can be defined. They will be defined in the
unit of measurement of the physical quantity selected for the calculation channel.
12.7.4 Measuring with Calculation Channels
Position the transducers for all activated measuring channels. The measurement will be
started automatically afterwards.
example: The difference of the volume flows of the channels A and B has to be deter-
mined. The physical quantity of measuring channel A can be the volume
flow or the mass flow, but not the flow velocity. The physical quantities of
the two measuring channels do not need to be identical (channel A = mass
flow, channel B = volume flow).
Select the unit of measurement. Press ENTER.
All positive calculated values less than the limit, will be set
to 0.
All negative calculated values greater than the limit, will be
set to 0.
The data memory can be activated/deactivated. Press EN-
TER.
Select the program branch MEASURING. Press ENTER.
Activate the necessary channels. Calculation channels will
be activated or deactivated like a measuring channel.
Press ENTER.
If a measuring channel is not activated although necessary
for an activated calculation channel, a warning will be dis-
played. Press ENTER.
par >MEA< opt sf
Measuring
CHANN: A B >Y< Z
MEASUR .
WARNING! CHANNEL
B: INACTIV
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