Vaisala WINDCAP WS425 Uživatelská příručka stáhnout pdf (Strana 56)

User's Guide ______________________________________________________________________

Example 1

- Output mode: voltage

- Offset: 0.0

- Gain: 0.1

With the above settings, the analog output voltage range is from

0 V (0 m/s) to 7.5 V (75 m/s). When the measured wind speed is

10 m/s, the output voltage is 1.0 V. See the formula below:

Output = 0.0 + 10 × 0.1 = 1.0 V

Example 2

- Output mode: current

- Offset: 0.004

- Gain: 0.0002

With the above settings, the analog output current range is from

4 mA (0 m/s) to 19 mA (75 m/s). When the measured wind speed

is 10 m/s, the output current is 6 mA. See the formula below:

Output = 0.004 + 10 × 0.0002 = 6.0 mA

Limitations for Output Signals

You can specify the minimum and maximum values for analog

output with the configuration parameters. The output is fixed to

the specified values, and the unit depends on the selected analog

output mode.

Example

To limit analog output 1 in voltage mode to a range of 0.1 … 5 V,

set the analog output minimum value to 0.1 and the analog output

maximum value to 5. Enter the following commands:

S aout1minv,0.1

S aout1maxv,5

For more information on the parameters, see Appendix D,

Configuration Parameters, on page 205.

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Vaisala WINDCAP WS425 Uživatelská příručka Strana 56