19 Advanced functions
19.3 Calculation channels
FLUXUS H721
2022-05-15, UMFLUXUS_H721V1-5EN
176
19.2.2
Storage rate of the FastFood mode
The storage rate for the FastFood mode is entered during the configuration of the data logger in the menu item
Storage
rate FastF
.
• Select the menu item
Configuration
.
• Activate the channels whose measured values have to be stored.
• Press ENTER until the menu item
Storage rate FastF
is displayed.
• Select
Automatic
if the storage rate has to correspond to the value of the FastFood measuring rate.
• Press ENTER.
• Select
Customized
if the value for the storage rate is to be defined.
• Press ENTER.
• Enter a value.
• Press ENTER.
19.2.3
Activation/deactivation of the FastFood mode
If the FastFood mode is enabled and a measurement is started, the normal measuring mode will still be running.
• Press
to activate the FastFood mode for the measuring channel currently displayed. The symbol for the FastFood
mode
appears in the upper line.
• Press
to deactivate the FastFood mode.
The FastFood mode can be activated/deactivated via remote functions.
19.3
Calculation channels
In addition to the ultrasonic measuring channels, the transmitter has 2 virtual calculation channels Y and Z which calculate
the measured values of all measuring channels.
The result of the defined calculation function is the measured value of the selected calculation channel. This measured
value is equivalent to the measured values of a measuring channel. All operations which are possible with the measured
values of a measuring channel (totalizing, storing, outputs, etc.) can also be done with the measured values of a
calculation channel.
19.3.1
Characteristics of the calculation channels
The measuring channels to be used for calculation and the
calculation function have to be entered in the program
branch
Parameters
.
It is possible to define 2 cut-off flows for each calculation
channel. The cut-off flow is not based on the flow velocity
as is the case with the measuring channels. Instead, it is
defined in the unit of measurement of the physical quantity
selected for the calculation channel. During the
measurement, the calculation values are compared with
the cut-off values and set to zero, if necessary.
19.3.2
Parameterization of a calculation channel
• Select a calculation channel (here:
Channel
Y
) in the program branch
Parameters
.
• Press ENTER.
The current calculation function is displayed.
• Press ENTER.
Special functions\Data logger\Configuration\Storage rate FastF
Notice!
Calculation channels are only available if the transmitter has more than one measuring channel.
Parameters
Channel x
Calculation
Calculation type
see annex A
Parameters\Channel Y
