High Quality: Amt-78 User Manual

| Button | Short Press | Long Press (3 sec) | |--------|-------------|--------------------| | | Freeze displayed value | Enter backlight/ torch menu | | RANGE | Manual range selection | Auto-range reset | | MODE | Switch between AC/DC/Hz/% | Enter secondary function (e.g., dBm) | | REL (Δ) | Relative zero mode | Store reference value | | SETUP | View secondary parameters | Enter calibration lock/unlock |

The AMT-78 acts as the "brain" of an amusement machine, managing several key variables defined by its technical limits: Time Control amt-78 user manual

To help you effectively, could you clarify which one applies? | Button | Short Press | Long Press