Setting Parameters
page 95
NF 650 - rev. 01 / 29.06.2020
32.3.4 Fallback
>Fallback< is activated and selected as soon as one of the defined level measurements is
covering the entire measurement range with the other sensor(s), however, covering only a part
of the range. Advantage of this method: readings from the >Fallback< sensor are available
even if a partial measurement should fail.
In the previous example the i-Series sensor would be suitable as >Fallback< sensor but would
then be set to measure the entire measurement range, not just as from a level of 0.32 m.
If in this case the 2-wire level sensor (2-wire pressure probe) for any reason whatsoever would
be missing a value for calculation, the transmitter would refer to the i-Series sensor and its
readings using the >Fallback< function.
32.4 Setting parameters in v-Paths Menu
The specifications in this menu point refer to the channel as defined (shape and dimensions) in
the >Measure place< menu (see Sect. “32.1.8 Channel Profiles”).
Moreover, this menu permits to enter some specifications required to calculate the sensor
positions. The transmitter shows the sensor mounting distances after the specifications are
completed.
Up to eight
flow rate sensors (4 paths) can be
directly
connected to a NivuFlow 650 transmit-
ter, depending on the type.
Up to 64
sensors (32 paths) can be
indirectly
connected via one
or more extension modules (see Sect. “17.1 Device Types”)
The >v-Paths< menu provides tabs for the v-paths 1 to x on the top right for setting the para-
meters (use >Tab<).
The basic structure applies for all menus; the indicated sensors and values, however, may vary
depending on the application.
Only a selection of v-paths can be parameterized
For transmitters with several measurement points, this menu works directly with the menu
>Connections<. Only those v-paths that were also preselected under >Connections< can
be parameterized. The other v-paths are not displayed and cannot be parameterized.
32.4.1 Active
The v-path is enabled by checking the box. If no check mark is set, the v-path is disabled,
nothing is displayed and it cannot be parameterized.
32.4.2 Sensor Types
The same selection of sensors (Fig. 32-12) is available for all v-paths.
Fig. 32-12 Sensor Selection Menu
