Using The Features - Greenlee PDMM-20 Manuel D'instructions

Using the Features

• Low Impedance Auto V•Ω Mode In this mode, the meter auto-
matically 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 approximately
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 inac-
tivity. 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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