Solar Meter

Solar meters are pyranometers which are used to calculate solar radiation flux density, or devices used to measure the kWh production from a PV system. Solar meters collect PV yield production and local yield consumption for monitoring and analyzing the PV plant performance. It comes in dimension of 4.2L * 2.4W * 0.9D (in) and is available in various colours such as black, yellow, orange, red etc.

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Detailed Description for Solar Meter

As per Anne Nelson, marketing manager, Solar-Log, Solar meter record electricity readings using integrated current transformers (CTs). These meters can be cellular enabled, which assists a dependable communication from the plant to the monitoring platform, where the installer and customer, both can view performance remotely via the web.



Sensor consists of a silicon photo-diode and a UV filter. It is totally invisible to visible light longer than 400nm and infrared radiation reason being its spectral response only covers the UVA region from 320nm-400nm.


Working operation:

To operate the solar meter, aim the window of sensor located on the top panel of the directly at UV source. Press and hold the ‘push’ button on the face of the meter. To get the repeated best results, note down the distance the reading was taken from the UV source.


·         UV lamp aging test

·         Acrylic shield transmission

·         Eyewear UV block comparison

·         Windows film transmission

Lamp aging

·         While checking lamp aging, make sure to use the same location and distance repeatedly to get the accurate feelings.

·         Lamps are ought to be replaced when output drops to about 70% of their new(original) readings.

Curing lamps

·         Make sure you hold the meter at the distance you intend your work-piece to be cured.

Tanning lamps

·         Place the meter up with the canopy closed to take the over-all reading at the centre of the tanning bed.

·         Hold the metre against the acrylic with canopy open to get individual lamp readings.

Acrylic testing

·         Take readings with and without acrylic at fixed distance.

·         Consider readings to be relative rather than absolute, while comparing different types of lamps.

·         Lamps having peak value near 365nm will read higher than lamps that peak near 350nm.

Features and benefits:

·         Hand held integral censor

·         NIST traceable

·         Compact and durable

·         LCD readout

·         Accurate calibration

According the Nelson, apart from the financing and incentive programs that require revenue grade metering, solar meters are becoming a necessary component of solar PV plants. Meters allow the PV plant owners to monitor their plants and ensure the performance of plant. Meters also provide the production information that is mandatory for plant owners to calculate a solar PV plants’ ROI.



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