Wrong power reading on one PRO2PM

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    • Autor

    I have a system with several PRO2PM and PRO1PM, each wired in the same way and as well a shelly EM upfront.

    I have consistent readings from all the devices but from one PRO2PM wich shows power readings lower than the expectations by a factor of about 24 (5.2W instead of 125W for example).

    The voltage is read correctly. SW version is 0.12.0

    The erroroneous reading is confirmed by the EM upfront which reads correctly about 125W.

    What could be the issue? Is it maybe a defective device?

    Did you interchange the erroneous Shelly with another good unit? Is the error associated with the probably faulty device?

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Comment is free, but facts are sacred“ (C.P. Scott, britischer Verleger)

    • Autor

    This would be my next step, but I do not have a spare and I would rather avoid rewiring to another in the distribution box if is just something software.

    I just wanted first to know if anyone had a similar issue which was solved in an easier way like setting some gains.