Keysight Technologies U1273A Guide De L'utilisateur page 76

2 Making Measurements
Using Smart Ω for Resistance Measurements
To use the Smart Ω function, set up your multimeter to test for resistance as
shown in
Table 2-11 Rotary switch position allowing Smart Ω measurements
Legend Defaul t function
Resistance measurement (Ω)
Smart
– Smart Ω (offset compensation) removes unexpected DC voltages within the
NOTE
– Using the offset compensation method, the multimeter takes the difference
The resistance measurement and the bias voltage measurement is shown in the
primary and secondary displays respectively.
Press
display.
– The Smart Ω is applicable for the 30 Ω, 300 Ω, 3 kΩ, 30 kΩ, and 300 kΩ
NOTE
– If the DC voltage on the resistor is over the maximum correctable offset/bias
76
Figure 2-17. Probe the test points, and read the display.
instrument, at the input or at the circuit being measured, which will add to
resistance measurement errors. The bias voltage or leakage current is shown
on the secondary display.
between two resistance measurements when two different test currents are
applied to determine if there are any offset voltages in the input circuitry. The
resultant displayed measurement corrects this offset, giving a more accurate
resistance measurement.
to switch between the leakage current (LEAk) or bias voltage (BiAS)
Dual
Exit
resistance range only. The maximum correctable offset/bias voltage is
+50 mV/–30 mV for the 30 Ω range and +1.0 V/–0.2 V for the 300 Ω,
3 kΩ, 30 kΩ, and 300 kΩ ranges.
voltage, OL is shown on the secondary display.
is pressed
Function when
Cycles between
– Continuity test ( ),
– Smart Ω measurement, or
– Resistance measurement (Ω)
Keysight U1273A/U1273AX User's Guide