Rigol DM3068 Uživatelská příručka stáhnout pdf (Strana 45)

Chapter 2 Front Panel Operations RIGOL

User’s Guide for DM3068

2-3

To Set the Resolution

DM3068 holds reading resolutions of 3½, 4½, 5½ and 6½ digits. It automatically

selects a reading resolution according to the current measurement settings. The

greater the resolution is, the higher the measurement accuracy will be; the lower

the resolution is, the faster the measurement will be. Different measurement

function has different resolution.

1. In DCV, DCI and OHM measurements, press the left and right direction keys at

the front panel (

) to set the reading resolution to 5

or 6

digits. The

resolution affects the integration time and vice versa.

Table 2-1 Relationship between reading resolution and integration time

Resolution Integration time Status bar display

0.006 PLC

0.02 PLC

0.06 PLC

0.2 PLC

1 PLC

0.006

0.02

0.06

0.2

2 PLC

10 PLC

100 PLC

100

2. In ACV and ACI measurements, the resolution is fixed at 6

digits. Press the

left and right direction keys to set the filter type.

Table 2-2 Relationship between the frequency and speed of AC filter

Resolution

AC filter

Speed

Status bar display

200 Hz Fast 200 Hz

20 Hz Mid 20 Hz

3 Hz Slow 3 Hz

3. In FREQ and PERIOD measurements, the resolution is fixed at 6

digits.

Press the left and right direction keys to set the gate time.

1 2 ... 40 41 42 43 44 45 46 47 48 49 50 ... 170 171

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