Measuring Dc Voltage; Measuring Ac Voltage (True Rms); Preparing For Current Measurements; Measuring Dc Current - Amprobe 34XR-A Mode D'emploi

Measuring DC Voltage

1. Set the Function Switch to .
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to , Black to COM
4. Connect the Test Probes to the circuit test points.
5. Read the display, and, if necessary, correct any overload (OL) conditions.

Measuring AC Voltage (True rms)

See Additional Features to find out the advantages of true rms.
1. Set the Function Switch to .
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to , Black to COM
4. Connect the Test Probes to the circuit test points
5. Read the display, and, if necessary, correct any overload (OL) conditions.

Preparing for Current Measurements

• Turn off circuit power before connecting the test probes.
• Allow the meter to cool between measurements if current measurements
approach or exceeds 10 amps.
• A warning tone sounds if you connect a test lead to a current input before
you select a current range.
• Open circuit voltage at the measurement point must not exceed 1000 V.
• Always measure current in series with the load. Never measure current
across a voltage source.

Measuring DC Current

1. Set the Function Switch to a  function and range.
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to μA mA or 10A, Black to COM
4. Turn off power to the circuit being measured.
5. Open the test circuit (
6. Connect the Test Probes in series with the load.
7. Turn on power to the circuit being measured.
8. Read the display, and, if necessary, correct any overload (OL) conditions.

Measuring AC Current (True rms)

See Additional Features to find out the advantages of true rms.
1. Set the Function Switch to a  function and range.
2. If RANGE is displayed, press the RANGE button to enable autoranging.
3. Connect the Test Leads: Red to μA mA or 10A, Black to COM
See Figure -1-
See Figures -2- & -3-
See Figure -4-
) to establish measurement points.
See Figures -3- & -5-
3