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Get the right kit for solar testing

Joe Bush, Editor


Tags: Test & Measurement

Topics: Test & Measurement

Megger has launched two new solar test kits to aid electrical contractors when installing, commissioning and fault finding solar power installations.

The PVK320 kit includes Megger’s new PVM210 solar irradiance meter together with an AVO410 true RMS multi-meter, and is well suited for working on domestic and small commercial installations, while the PVK330 kit, which is primarily intended for use on larger installations, includes the same irradiance meter but complements it with a DCM340 AC/DC clampmeter that can measure current up to 600A. Both kits include test leads fitted with the MC4 connectors that are commonly used in solar power installations, as well as MC3 to MC4 adapter leads.

The PVM210 solar irradiance meter is a pocket sized instrument with the solar sensor mounted on its top surface. This enables ease use - one handed, if necessary - at the top a ladder or on a sloping roof. A reading hold function provides additional convenience especially when using the instrument in awkward locations, while the inclusion of a tripod bush means that the PVM210 can be used for making precision measurements in a specific direction or at a specific angle.

The PVM210 measures irradiance up to 1,999 W/m2 (634 BTU/ft2.hour) and can be used both as an aid to optimally positioning solar panels and, in conjunction with an ammeter, to verify the short circuit current of the panels.

The AVO410 digital multi-meter featured in the PVK320 kit includes a CAT IV 600V safety rating in line with IEC 61010, and is small enough to fit into the palm of the hand. The AVO410 measures DC voltage to 1,000V, AC voltage to 750V, and AC or DC current to 10A. All AC ranges are true RMS.

In addition, the AVO410 offers resistance, frequency and capacitance ranges, as well continuity and diode test functions. MIN/MAX and display hold functions enhance the usefulness of the instrument in solar power applications.

The DCM340 digital clamp meter included in the PVK330 kits measures both AC and DC current up to 600A and voltage up to 600V and is therefore, well suited for carrying out checks on the DC circuits associated with the solar panels, as well as for making AC measurements on the output side of the solar power system inverter. A key benefit is that, because the DCM340 is a clamp meter, current measurements are made without the need to make any direct electrical connections to the circuit under test.

The DCM340 is auto-ranging, and it incorporates peak, maximum and minimum hold functions, which aid the tracing of intermittent faults, and for monitoring the performance of solar installations over an extended period of time.

Megger’s new PVK320 and PVK330 test kits for solar power installations are supplied with a carrying case which includes space to accommodate the instruments and connecting leads.

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