Brymen BM785, User Manual

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6
~Hz Line Frequency
Press the ~Hz button momentarily to switch to Line Frequency function. It is only
available to the functions as in the table below. Input sensitivity varies automatically
with the function range selected while the ~Hz function is being activated. Level 0 is the
highest sensitivity while LEVEL 3 is the lowest. Press momentarily the
~Hz (LEVEL)
button can manually select the available Trigger Levels (see table below) in sequence.
Press the
~Hz button for one-second-or-more to leave Line Frequency function.
TRIGGER ACV/dBm/DCV/AC+DCV VFD-ACV

A mA A
LEVEL 0 6V 600

A 60mA 6A
LEVEL 1 60V
6000  A
600mA 10A
LEVEL 2 600V 600V
LEVEL 3 1000V 1000V
Note: It is recommended to direct measure the signals (voltage or current) in auto-
ranging mode before activating the ~Hz function right in that range to get the most
appropriate trigger level automatically. If the ~Hz reading is unstable, select lower
sensitivity to avoid possible electrical noises. If the reading shows zero, select higher
sensitivity to measure.