PV Testing equipment question

[RGawley]

I recently got myself a new irradiance meter, its less than 3months old and never came with a calibration certificate, ive got my MCS accreditation a week, can someone confirm if it is acceptable and will pass MCS audit? evan if i show proof of purchase?

 

[whinmoor]

Why not ask the supplier? Maybe he can email to you?

 

[chrisperryman87]

The meter is only required when testing the stc of your panels and your looking for a reading similar to that on the label on the back of the panel. I believe the only meter you are required to calibrate is that which you are using when the array is complete, testing the Voc and Isc.

 

[Worcester]

And how would you know if the Voc and Isc are correct anyway as they both depend upon the irradiance to some degree? (as well as panel temperature) ...