OTT HydroMet updates Kipp & Zonen DustIQ Soiling System

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The soil monitoring system Kipp & Zonen DustIQ just got a firmware update to make it even better, says OTT HydroMet. DustIQ is an optical sensor for measuring the amount of dust, sand and other shading objects on photovoltaic panels. It is used to determine the fouling rate, optimize cleaning programs, increase the profitability of photovoltaic installations – especially in arid and desert areas.

According to OTT HydroMet, the pre-update…

Measurements taken outdoors in various desert regions around the world show that the DustIQ underestimated the degree of transmission loss with its previous factory calibration dust slopes. These various sites report that the outdoor dust slope is a factor of between 1.8 and 2.6 higher than the factory calibration. Based on these ratios, an average factor of 2 is found. Independent research also confirms that DustIQ with the prior factory calibration dust slope underestimates transmission loss.

Now, with the firmware update to version 22000, the factory calibration dust slope is corrected with this factor 2. For example, a sensor reading a fouling rate of 98.5% (transmission loss 1.5%) before the update will now show an increased fouling rate output of 97.0% (3.0% transmission loss).

With the new firmware update, among other benefits, DustIQ adapts more quickly to surrounding conditions and enables easier calibration in the field:

  • Improved soil response with increased sensitivity
  • Easier and faster field calibration procedure
  • Clear communication thanks to digital error code display
  • New function to tare the DustIQ
  • Increased functionality to allow device reset, start tare and start calibration in the field

You can find the manual including all the information on how to install the new firmware and other documents related to the DustIQ fouling monitoring system on the OTT HydroMet website.

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Tags: Kipp and Zonen
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