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GW Instek GRS-6000A Series User Manual

Page 21

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GRS-6052A/6032A OSCILLOSCOPE

USER MANUAL

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36

Figure 5-1(b)

Storage Mode Readout Layout

GRS-6052A/6032A OSCILLOSCOPE

USER MANUAL

⎯ ⎯

37

5-2.Connecting Input Signals

Grounding

The most reliable signal measurements are made when the oscilloscope and the

unit under test are connected by a common reference (ground lead) in addition

to the signal lead or probe. The ground lead of the probe provides the best

grounding method for signal interconnection and ensures the maximum amount

of signal-lead shielding in the probe cable. A separate ground lead (with a

banana plug) can also be connected from the unit under test to the oscilloscope

ground jack on the front panel.

Probes

A probe provides the most convenient way to connect an input signal to the

oscilloscope. The standard Ч1/Ч10 probes supplied to the oscilloscope are

shielded against electromagnetic interference and have a high input impedance

for low circuit loading.

CAUTION. To get the best waveform precisely, keep

probe ground and signal leads as short as possible.

Misadjust probe compensation can cause measurement error. Check and adjust

probe compensation whenever a probe is moved to a different channel or

oscilloscope. As for the probe compensation adjustment procedure, refer to the

“Probe Compensation”.

Coaxial Cables

Signal input cable can greatly affect the accuracy of a displayed waveform. To

maintain original frequency characteristics of the input signal, use only high-

quality, low-loss coaxial cables. Coaxial cables must be terminated at both ends

in their characteristic impedance to prevent signal reflections within the cable.

Use suitable impedance-matching devices.