SIGLENT SDM3065X, Руководство пользователя

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SIG L ENT
38 SDM3055 Digital Multimeter
Diagram 2- 14 4 Wire Resistance Measurement Interface
2. Make connection
Connect the test leads with the measured signal by referring to
“Measurement Connections”.
3. Set the range
Press
【
Range
】
to select a range for the measurement. You can also use
the , , and keys on the front panel to select the range.
Auto (autorange) automatically selects the range for the measurement
based on the input. Autoranging is convenient, but it results in slower
measurements than using a manual range. Autoranging goes up a range
at 110% of the present range, and down a range below 10% of the
present range.
4. Set the intergration
Press
【
Aperture
】
and choose the number of power-line cycles (PLCs) to
use for the measurement. Selecting 100 PLC provides the best noise
rejection and resolution, but the slowest measurements
5. Autozero setting
Press
【
Auto Zero
】
to enable or disable this function. Autozero provides the
most accurate measurements, but requires additional time to perform the
zero measurement.With autozero enabled (On), the DMM internally
measures the offset following each measurement. It then subtracts that
measurement from the preceding reading. This prevents offset voltages
present on the DMM
‟s input circuitry from affecting measurement accuracy.
6. Set the relative value (Optional operation)
Press
【
Rel
】
to open or close Relative math function. When it is opened,