8
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 M
Ω
, resistance is displayed.
This mode features low input impedance to mask stray or
“ghost” voltage pickup. The input impedance is approxi-
mately 160 k
Ω
.
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.
Содержание PDMM-20
Страница 12: ...12 Typical Measurements Voltage Measurement Continuity Check Resistance Measurement ...
Страница 31: ...31 PDMM 20 Mediciones más comunes Medición de tensión Verificación de continuidad Medición de resistencia ...
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Страница 51: ...51 PDMM 20 Mesures types Mesure de la tension Vérification de la continuité Mesure de la résistance ...
Страница 52: ...52 Mesures types Mesure de la capacité Fréquence Détection du champ électrique A Non contact OU B Contact ...
Страница 60: ...60 ...
Страница 61: ...61 PDMM 20 ...