The Solar Digest for Solar Power, Solar Energy and Photovoltaic PV News - Test and Measurement
Megger's New PV Tester Shines!
- Published: Tuesday, 24 April 2012 10:57
Designed specifically to aid theinstallation of solar PV panels, Megger’s new PVM210 solar irradiance meter features a compact design which, unlike most other irradiance meters, has thesolar detector on the top of the instrument.
This arrangement, combined withthe useful measurement hold function, makes the PVM210 easy and convenient touse – even with just one hand – when working on a sloping roof or at the top ofa ladder.
The pocket-sized PVM210 offers fastaccurate readings of solar power and shows the result on a large easy-to-read3¾-digit liquid crystal display. This makes the instrument ideally suited as anaid to selecting the optimum position for PV panels during installation. Inaddition, it can also be used in conjunction with an ammeter to verify that theshort-circuit current of a PV installation matches the specification providedby the manufacturer of the PV panels.
For applications where preciseirradiance measurements at a specific angle or in a specific direction arerequired, the instrument is provided with a tripod bush that allows it to besecurely mounted on any standard photographic tripod.
Suitable for use in all types ofsolar power installations, the PVM210 measures incident solar irradiance up to1999 W/m2 (634 BTU/ft2.hour) with a typical accuracy of ±10 W/m2 (± 3 BTU/ft2.hour). A sampling time of just 0.25seconds ensures that accurate readings are produced almost instantly. Power forthe instrument is provided by two inexpensive and readily available AAA/LR03batteries, with a fresh set of batteries offering around 50 hours of operation.An auto-off feature helps to conserve battery life by automatically turning theinstrument off if no measurements have been made for 15 minutes.
Megger’s new PVM210 solar irradiancemeter weighs just 90 g (3 oz) and has an operating temperature range of +5 ºCto + 40 ºC. It is supplied complete with a durable protective pouch for storageand transport.
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