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9.6 Output
After clicking Output you can connect a measured input or internal value to an output, decide to log the average value,
the min and max and standard deviation for your output and optionally vector if it is related to wind direction.
For easier reading of the logged values the outputs can be given an alias that will be reported in the logs and in the LiveView
window.
The Kipp & Zonen SMART instruments (SMP, SHP, RT1 etc.) offer the choice of logging the radiation W/m
instruments temperature (Sx_TEMP) and the raw not linearised, not temperature compensated radiation from the sensor
(Sx_RAW). For the pyrgeometers there's also the calculated downward atmospheric long-wave radiation Sx_DOWNRAD
and the raw sensor data (Sx_RAW1) and the raw log wave down (Sx-RAW2) data both not linearised, not temperature
compensated
The DustIQ offers: Soiling ratio 1 & 2, Transmission Loss 1 & 2 , Tilt X and Y (future enhancement), PV panel temperature in
Kelvin (future enhancement).
The Lufft WSxxx weather stations offer: Temperature in °C and Fahrenheit, Relative humidity, Dewpoint in °C and
Fahrenheit, Wind speed in m/s and MPH, Wind direction, Air pressure in kPa, Solar irradiation W/m², Precipitation in mm
and inches, Precipitation in mm and inches per hour, Precipitation type and External temperature.
Note:
Each logged measured output must be converted using a 3
logging without conversion. Sixteen polynomials can be setup and assigned.
Pn = A0 + A1 * x + A2 * x
2
In the above example, P1 gives just the original millivolt value and must be used if no conversion is needed. P2 will convert
millivolts to volts for easier reading or when needed when processing the logged data. P3 is for converting the analog
voltage output of a SMART-V pyranometer to W/m
The logged digital SMART sensor reading needs no further action as the readings are in W/m
The temperature is in 0.1°C (see SMP manual) and needs to be divided by 10 thus giving a A1 value of 0.1.
For converting the internal GSM signal IIN7 to dBm A0 = -113, A1 = 2, A2 = 0, A3 = 0.
9.6.1
Polynomials for CMP, CHP, CGR etc
The sensitivity of the instrument (e.g. 10.60 µV/W/m2) can be transformed to a simple polynomial: ��1 =
µV/W/m
as indicated on the calibration certificate of the instrument.
2
+ A3 * x
3
2
and is hardly ever used.
rd
power polynomial. At least A1 = 1 is needed for
23
(Sx_RAD) , the
2
, thus A1 = 1.
2
in
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