Powertronics PQR D50 and PQR 2020 PQR D50 and PQR 2020 Date/Time Stamp Function Corrupted

The Powertronics PQR D50 is a dual‑mode voltage disturbance recorder that logs average values and timestamps for each detected event on a single‑phase 120/240 V line. Common failures include corrupted date/time stamps due to non‑volatile RAM wear, power‑supply ripple causing false disturbance counts, and firmware glitches that disable the host‑communication interface. First‑check diagnostics: verify the AC input voltage and isolation; inspect the internal CMOS battery or backup supply for proper voltage; review the event log via the PQR Host Software for error codes or corrupted entries. If the timestamp function remains unreliable, replace the non‑volatile memory module and re‑flash the firmware to restore normal operation.[oss-gpt-20b] Post Comment

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