Measuring impedance, 210h – GW Instek GDS-122 User Manual User Manual
Page 45

Using
the
Multimeter
89
15B
Measuring Impedance
Impedance
specifications
(details: page
210H
98)
Range &
Resolution
400
Ω ±(1% + 3 digits)
4k, 40k, 400k, 4M
Ω ±(1% + 1 digit)
40M
Ω ±(1.5% + 3 digits)
Panel operations
1. Press the R switch. If a warning
message appears, press any key to
resume measurement.
2. Press the AUTOSET key repeatedly
to select the impedance
measurement.
AUTOSET
3. The impedance screen appears.
4. Connect the test leads to the
terminals:
COM for the black lead
V/
Ω/C for the red lead
5. The measurement result will be constantly
updated in the display. For more detailed
settings, see the following instructions.
Auto ranging
To let the GDS‐122 select the voltage
range automatically, press F3 (Auto).
The indicator at the top left corner of
the display changes to AUTO.
F3
Auto
AUTO
GDS-122 User Manual
90
Manual ranging
To select the voltage range manually,
press F1 (Manual). The indicator at the
top left corner of the display changes
to MANUAL.
F1
Manual
MANUAL
Freezing the
measurement
To freeze the measurement, press the
RUN/STOP key. The measurement
result will be retained and the
indicator at the top right corner of the
display changes to STOP. To unfreeze,
press the RUN/STOP key again.
RUN/STOP
RUN
STOP
Measuring delta
impedance
To measure the delta value, press F2
(II/
Δ). The measurement result at the
moment moves to the top right corner
of the display, and the measurement
result becomes the difference between
the original result.
2. Measurement
reset to zero
120.0kO
1. Press F2
3. Delta value
displayed