Vaisala WINDCAP WMT700 Series, User Manual

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3.8.2 Analog Output Scaling
You can specify the transfer function between measured values and output analog values.
You can select the analog output type as well as the gain and offset used in the transfer
function.
Table 18 Factory Settings for Analog Wind Speed Output
Aout1 Selected Option Scaling/Gain Offset Error
Indication Example
Voltage 0.1 V/m/s 0 V 10 V 0 V = 0 m/s
7.5 V = 75 m/s
Current 0 ... 20 mA 0.0002 A/m/s 0 A 0.022 A 0 mA = 0 m/s
15 mA = 75 m/s
Current 4 ... 20
mA WMT701 0.00040000 A/m/s 0.004 A 0.002 A 4 mA = 0 m/s
20 mA = 40 m/s
WMT702 0.00024615 A/m/s 0.004 A 0.002 A 4 mA = 0 m/s
20 mA = 65 m/s
WMT703 0.00021333 A/m/s 0.004 A 0.002 A 4 mA = 0 m/s
20 mA = 75 m/s
WMT704 0.00017777777 A/m/s 0.004 A 0.002 A 4 mA = 0 m/s
20 mA = 90 m/s
Frequency Push-Pull 10 Hz/m/s 0 Hz 1000 Hz 0 Hz = 0 m/s
750 Hz = 75 m/s
WS425 - voltage 8 mV/mph
(0.017895 V/m/s) 0 mph 2 V 0 mV = 0 mph
1.344 V=168 mph
WS425 - frequency 5 Hz/mph
(11.185 Hz/m/s) 0 mph 1000 Hz 0 Hz = 0 mph
840 Hz =168 mph
Frequency Push (PNP) 10 Hz/m/s 0 Hz 1000 Hz 0 Hz = 0 m/s
750 Hz = 75 m/s
Frequency Pull (NPN) 10 Hz/m/s 0 Hz 1000 Hz 0 Hz = 0 m/s
750 Hz = 75 m/s
Table 19 Factory Default Settings for Analog Wind Direction Output
Aout2 Selected
Option Scaling/Gain Offset Error Indication Example
Voltage 0.02 V/° 0 V 10 V 0 V = 0°
7.2 V = 360°
Chapter 3 – Functional Description
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