Flexim FLUXUS WW, Руководство пользователя

Страница: 77 / 146

10 Basic measurement FLUXUS WW
UMFLUXUS_WWV1-1EN, 2018-02-28 77
10.6 Start of measurement
If more than one measuring channel is available/activated, the transmitter works with an integrated multiplexer providing
simultaneous measurement on the different measuring channels.
The flow rate is measured on one measuring channel for approx. 1 s, then the multiplexer switches to the next activated
channel.
The time necessary for the measurement depends on the measuring conditions. E.g., if the measuring signal cannot be
detected immediately, the measurement duration might be > 1 s.
The outputs and the serial interface continuously receive the measured values of the corresponding channel. The results
are displayed according to the currently selected output options. The default unit of measurement of the volumetric flow
rate is m³/h. For the selection of the values to be displayed and the setting of the output options, see chapter 11. For fur-
ther measuring functions, see chapter 12.
10.7 Detection of the flow direction
The flow direction in the pipe can be detected with the help of the displayed volumetric flow rate sign in conjunction with
the arrow on the transducers:
• The fluid flows in the direction of the arrow if the displayed volumetric flow rate is positive (e.g., 54.5 m³/h).
• The fluid flows against the arrow direction if the displayed volumetric flow rate is negative (e.g., -54.5 m³/h).
10.8 Stop of measurement
The measurement is interrupted by pressing key BRK if it is not protected by a program code (see section 12.12).
The measured values are displayed in the lower line. Press ENTER to return to the fine ad-
justment of the transducer distance (see section 10.5.1).
Note! Be careful not to stop a current measurement by inadvertently pressing key BRK!
A:Volume flow

31.82 m3/h