Measuring solar radiation, the CFox sensor C-IT-0200I-SI

Meteo 29.02.2020 17:21 04.03.2020 17:52

Measuring solar radiation can be done by the C-IT- 0200I-SI module, which comprises the inner part of the C-IT-0200I module fitted into the S-SI-01I sensor.

The solar radiation sensor uses for its own measurement of intensity a monocrystalline silicon solar cell with an integrated temperature sensor; it is used for a temperature compensation of the solar cell.

The level of intensity (W/m2) is calculated using the function in the programming environment, which needs entering the specific sensor calibration constant; it is written on the label on the internal side of the cap, and it should be copied before the sensor is mounted.

The C-IT-0200I module must first be configured: AI1 measurement of 100 mV voltage; AI2: temperature measurement NTC 12k (these jumpers are set at the factory); in the same way, the module configuration must be done in the programming environment.

 

Fig. 1. Interior connection of the C-IT-0200I-SI sensor

 

Notes:

  1. The intensity sensor output is connected to the AI1 input, the NTC 12k temperature sensor (used for the temperature correction of the measurement) is connected to the AI2 input. - N.B: It cannot be used for measuring the outdoor temperature!

  2. In the same way, the separate modules C-IT-0200I and S-SI-01I can be connected, which then can be arranged separately.

 

 

 

Fig. .2 A view of the connected parts of the C-IT-0200I-SI sensor

 

Notes:

  1. The bottom of the box (in the left part of the image) contains the electronics of the C-IT-0200I module (the terminal blocks, jumpers and other properties have the same parameters as this module), the cap (the right-hand part of the image) contains its own sensor (S-SI-01I), and the sensor output wires are mounted directly in the module terminals.

  2. During the assembly of the module, care must be taken to avoid squeezing the wires in the sealing of the box, as this would impair the degree of protection of the module.

  3. The angle of a typical assembly should be similar to that of thermal or solar panels; ideally the sensor should be mounted directly next to the panels with the gland facing down.

  4. On a label on the internal side of the cap is written the calibration constant, which should be copied and entered into the computing function in the Mosaic programming environment.