Rigol M300 Manual do Utilizador descarregar pdf (Página 108)

RIGOL

User’s Guide for DM3000 Series

3-4

Example 2: Elimination Leads Resistance Error

When measuring smaller resistance, the test leads resistance may causes large

measurement deviation.

Do these steps as follow:

1. To measure a Resistance. Connect test leads as shown in Figure 1- 19.

2. Press button, select Resistance (2WR) measurement function. Choose an

appropriate measurement range.

3. Set the Null measurement function parameters.

(1). Short circuit the test leads.

(2). Press  Null  Current to set the Null setting value with current

reading.

(3). Press save this setting.

(4). Press to finish the setting and back to a higher level menu.

4. In resistance measurement display interface, press Null, start Null function.

5. Lead test leads into circuit and start to measure.

Figure 3- 2 Null Measurement

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Rigol M300 Manual do Utilizador Página 108