Vaisala WAT12, Руководство пользователя

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7. Attach the unit on the top of a pole mast with the mounting clamp as shown in Mounting
WAT12 on top of pole mast (page 23) .
8. Mount the sensors onto the cross arm.
See Mounting wind sensor to WAT12 (page 25) and Vaisala Anemometer WAA151 User
Guide and Vaisala Wind Vane WAV151 User Guide .
9. Before erecting the mast, align the cross arm as instructed in Alignment (page 25) .
3.3 Jumper settings
The loop current can be selected with the onboard jumper plugs. Several output ranges, such
as 0 ... 20 mA, 4 ... 20 mA, 0 ... 10 mA, 2 ... 10 mA, 0 … 5 mA, and 1 … 5 mA, are available as user-
configurable options, each with factory-adjusted zero and span levels. The voltage-mode
signals are easily obtained by connecting a suitable resistor across the readout device's
terminals. Signal full scale options are also available. For example, a directional scale of 540°
(0-360-180°), which is convenient for analog panel meters or chart recorders, can be chosen
to prevent the needle or pen from oscillating across the scale with northerly winds.
Figure 3 Location of jumpers
1 X4: Test and operation
2 X5: Output zero
3 X7: Scaling together with X6
4 X8: Output span
5 X6: Scaling together with X7
WAT12 User Guide M210309EN-B
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