Morris 57266, Instruction Manual, Page: 8 / 23

4.3
4.4
5.
When the meter operates in manual ranging
mode, push this button to change range to the
higher one and hold this button for more than 3
seconds to return to auto range mode.
∆
REL
Push the button to get relative measurement
mode, “REL” annunciate display on LCD. But
store the displayed reading as a reference value.
In the Relative mode, the value shown on the
LCD is always the difference between the stored
reference value and the present reading. If the
new reading is the same as the reference value,
the display will be zero.
% Hz
Push the button to select frequency or duty cycle
measurement.
LCD DISPLAY
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