Vaisala WXT536, User Manual

Page: 159 / 235

Chapter 8 ____________________________________________ Sensor and Data Message Settings
VAISALA______________________________________________________________________ 157
Parameter Selection [aIU,R= (bit 1 and bit 9)]
The bits 7 and 14 enable normal and composite message for Aux rain
accumulation. You can select the parameters with the
aIU command.
Parameter Order for SDI-12 Mode
The parameter order for SDI-12 mode is:
Analog in (M4): Tr Ra Sl Rt Sr
Analog Output
You can change the analog output type and scaling of WXT532. For
instructions, see
Analog Output Scaling on page 158 .
WXT532 provides the following analog outputs:
- AOUT1 for wind speed data
- AOUT2 for wind direction data
For instructions on wiring, see Wiring and Power Management on page
53 .
The analog output value is updated based on a WU,I= settings. Wind
measurement uses aWU settings, such as Averaging Time.
Analog Output Operation
You can order WXT532 with either 4 ... 20 mA scaling or 0 ... 20 mA
scaling.
You can scale the output with the command aSU .