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4-1

Chapter 4

Making Measurements

Title Page

Introduction........................................................................................................4-3

Selecting Function Modifiers.............................................................................4-3

Activating the Secondary Display .....................................................................4-3

Measuring Voltage.............................................................................................4-4

Measuring DC Voltage..................................................................................4-4

Measuring AC Voltage..................................................................................4-6

Measuring Frequency and Period ......................................................................4-7

Measuring Resistance ........................................................................................4-8

Making a Two-wire Resistance Measurement ..............................................4-8

Making a Four-wire Resistance Measurement ..............................................4-9

Measuring Current .............................................................................................4-10

Measuring DC Current ..................................................................................4-12

Measuring AC Current ..................................................................................4-13

Measuring Capacitance (4050 only) ..................................................................4-14

Measuring RTD Temperature (4050 only) ........................................................4-15

Testing Continuity .............................................................................................4-16

Checking Diodes................................................................................................4-17

Making a Triggered Measurement.....................................................................4-18

Setting the Trigger Mode...............................................................................4-18

Setting a Trigger Delay .................................................................................4-19

Setting Number of Samples per Trigger........................................................4-19

Connecting an External Trigger ....................................................................4-19

Monitoring the Measurement-Complete Signal.................................................4-20

Tektronix DMM4020 User Manual

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