FW 2.02 solves the 550..600 Vdc unsteady ranging problem, introduced with FW 2.00.
Instead, the 1000 Vdc range does not down-range any more @ Uin < 500 V, but stays in this 1000 V range until U < 60.0 V, i.e. @ 59.9 V.
All other ranges, 500V, 50V, 5V down-range and up-range correctly.
Frank
PS: Gee, wouldn't it be possible for UEI, to test firmware changes, especially such specific bug corrections, more thoroughly?