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3. REL ∆ ∆ (relative measurement)
Press the REL∆ ∆ button to use the relative measuring function and
a "REL∆" symbol appears on the LCD. The result of the relative
measurement is the difference between the measuring value and
the momentary value by press the REL ∆ ∆ button. Press the REL ∆ ∆
the reference value. The reference value is produced the same as
button again to exit this function and the "REL∆" symbol disappears
from the display. This button does not affect the frequency, duty
cycle, diode and continuity test functions.
4. HOLD (data hold)
Pressing the HOLD button enables the data hold function and an
" H " symbol appears on the display. The momentary value appears
on the display. Press the HOLD button again to exit this function
and the " H " symbol disappears from the display. This button does
not affect the frequency measurement function.
5. Hz/DUTY (frequency and duty cycle measurement switch button)
When making a frequency, DC or AC voltage measurement, press
this button to switch between the Hz or duty cycle test mode.
6. RESET (reset button)
Press this button to clear all values and to restart the meter.
LCD Display
About function rotary switch refer to Table 5 and Figure 5.
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