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protech QM1594 - Multimeter Functions and Controls

protech QM1594
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FUNCTIONS
Autoranging/
Manual
The meter’s default setting is autoranging. This
automatically selects the best range for the selected
test/measurement.
To set the meter to manual, press the RANGE
button. The “AUTO” icon on the screen will turn
off.
Press the RANGE button to move through the
available ranges until you see the range you want.
To exit the manual mode and return to
autoranging, press and hold the RANGE button for
2 seconds.
Mode The MODE button helps you to move through various
operations with various icons displayed on-screen. It
also allows you to select between AC or DC current
measurements.
Function
Switch
Select a measurement range by turning the switch to
the preferred option.
LCD Screen Readings and measurements taken by the multimeter
will display in this area.
Hold &
Backlight
Press the HOLD button to lock readings as displayed
on the screen. Press again to unlock.
Press the HOLD button longer to turn the backlight
on. Press the HOLD button longer again to turn the
backlight off.
Note: The backlight will automatically turn off after
10 seconds.
Relative
Button
This allows you to make measurements relative to a
stored reference value. The displayed value is then
the difference between the referenced (stored) value
and the measured value.
Press the REL button to store a reading. The REL
indicator will appear on the display. The display will
now indicate the difference between the stored
value and the measured value.
Press the REL button to exit the relative mode.
4

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