Using The Features - Greenlee PDMM-20 Manual De Instrucciones

Using the Features

• Low Impedance Auto V•Ω Mode In this mode, the meter
automatically selects the proper measurement based on the
input.
– If there is no input, "Auto" appears on the display.
– If voltage above approximately 2 volts AC or DC is
present, voltage is displayed. The meter beeps once
when switching from Auto to voltage measurement.
– If both AC and DC voltages are present, the larger
voltage is displayed.
– If no voltage is present and there is resistance less than
6 MΩ, resistance is displayed.
This mode features low input impedance to mask stray or
"ghost" voltage pickup. The input impedance is approxi-
mately 160 kΩ.
Overload Alert Feature: When above rated voltage is
present (450 V), the meter displays "OL", with a warning
beep tone. Disconnect the test leads from the voltage source
immediately.
Function Lock Feature: When a measurement is being
displayed in Auto V•Ω mode, pressing the button one time
will lock in that function. Pressing the button again will
return the multimeter to Auto V•Ω mode. It is sometimes
useful to "lock in" a function. This may be helpful for
measuring low voltages.
• Intelligent Automatic Power Off (APO) To extend battery
life, the meter shuts itself off after approximately 3 minutes
of inactivity. Inactivity occurs when the selector button is not
pressed. The meter will not enter APO when there are
significant readings over 10% of the range or non-OL
readings for resistance and continuity.
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