The 8d-96 has only three buttons: (program), ▲ (up), and ▼ (down). The manual explains the two primary modes:
: Information on routine maintenance, software updates, and where to seek help in case of technical issues. circutor computer 8d-96 manual
The 8d-96 may have a manual refresh mode for harmonics. Pressing the UP and DOWN together might lock/unlock the harmonic display. The manual calls this "Peak Hold" or "Data Freeze." The 8d-96 has only three buttons: (program), ▲
Measures current via an external transformer and voltage directly, requiring specific phase sequence (L1, L2, L3). requiring specific phase sequence (L1