Keysight U1281A Guide De L'utilisateur page 57

Measuring DC Voltage
Set up your multimeter to measure DC voltage as shown in Figure 2-7. Probe the test
points and read the display.
Table 2-3
Legend
mV
This multimeter displays DC voltage values as well as their polarity. Negative DC voltages
NOTE
will return a negative sign on the left of the display.
Figure 2-6
– If the signal includes an AC component and the peak value exceeds the measurement
CAUTION
range, you will need to lock the range that is greater than the voltage peak. Use the
maximum range of 1000 V to check the signal condition, and manually select a
suitable range for the signal.
– As the DC voltage measurement has the Normal (Series) Mode Rejection Rate (NMRR)
capability for 50/60 Hz noise, a hazardous voltage indication ( ) will be shown even if
the display is showing 0 V or < 30 V. The measurement range will automatically be set
to a higher range, and the analog bar graph will be varying faster or greater than the
displayed value.
Keysight U1281A/U1282A User's Guide
Rotary switch positions allowing DC voltage measurements
Default function
DC V
V
DC mV
DC voltage display
Making Measurements
Function when Shift is pressed
Esc
Scrolls between
– AC V
– AC+DC V, or
– DC V
Scrolls between
– AC mV
– AC+DC mV, or
– DC mV
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