Aktakom ??M-1130 User Manual page 9

АМM-1130
(9) FUNC. key
When setting the rotary switch to a measurement function, the meter will enter its first measurement mode, while pressing the
FUNC. key it is possible to select the second or the third measurement mode. However, there is only one for the Frequency and
Capacitance measurements.
(10)RANGE key
For various kinds of measurements it is used manually to select range. Under the automatic range state (AUTO displaying), it
will enter manual range state(MANUAL displaying) with a press on RANGE, after that the range will be changed with a press
on RANGE while the small digits on the left lower corner indicating the actual range. When the RANGE key being released
after pressing for one second the meter will return back to the automatic state.
(11) Hz/DUTY key
During the AC voltage or AC current measurements, by pressing Hz/DUTY key the meter will enter the linear frequency
measurement state. At this time what being measured is the frequency of voltage or current. By pressing this key again it will
enter the DUTY Cycle measurement state ,by pressing this key again it will return the voltage or current measurement state.
But if it during the Frequency measurements state, by pressing HZ/DUTY key the merer will enter DUTY Cycle measurement
state, pressing again it will be returned.
(12)LIGHT key
By pressing this key for a time, the backlight of the LCD screen will be opened and after 60 seconds the meter will
automatically turn off the backlight. It is also possible to turn off the backlight by pressing the LIGHT key before the 60
seconds.
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