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Figure 31, Measurements view: configuring powering control – Vaisala Hydromet Data Collection Platform User Manual

Page 75

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Chapter 3 _____________________________________________ Configuring Modules and Sensors

VAISALA_______________________________________________________________________ 73

However, in low-power systems some power reduction can be
implemented. In such case, you can select the When measuring option
in the Sensor power on frame of the Measurements view; see

Figure

31 on page 73

.

0711-138

Figure 31

Measurements View: Configuring Powering Control

For the example wiring diagrams, refer to

Chapter 7, Technical Data, on

page 337

.

If you select the Power control enabled option, you can choose the
following:

-

In the Sensor power on frame: Powering of the wind vane, either
continuous or during measurement only

-

In the Vane power bit frame: The output pin of the QMI digital
I/O module to be used to control sensor excitation in the When
measuring
mode

-

In the Powering polarity frame: The QMI digital I/O module
output, which is typically normal but can be reversed. This depends
on the hardware used to control powering.

-

The Pre-measure delay field: The delay between power on and
measurement start [ms]. This option provides stabilization time for
sensor before measurement is made. The value should never be less
than 60 milliseconds.