VOLTCRAFT VC-539 Mode D'emploi page 38

5. Push the MODE button (9) to select the measurement mode for direct current voltage or
alternating voltage. In the upper right-hand corner of the LC display (10), the corresponding
symbol:
- DC for direct current voltage
- AC for alternating voltage
6. Connect the test prods to the object under test.
7. The reading is shown on the LC display (10).
If a minus sign appears before the reading when measuring direct current voltage, the
measured voltage is either negative or the test leads are reversed.
8. Remove the test leads from the object under test after measurement and turn off the current
clamp.
e) Analog signal output (voltage)
1. Use the mode switch (4) to select one of the four current measurement ranges.
2. Remove the safety caps from the L-shaped test lead jacks.
3. Connect the red test lead to the red test lead jack (7).
4. Connect the black test lead to the black test lead jack (8).
5. Connect the test prods to the input jacks of a multimeter or oscilloscope.
6. Open the current clamp sensor (1) by the opening lever (3).
7. Place the clamp around the conductor under test and release the opening lever (3). Make sure
that the conductor is not jammed. The conductor must move freely inside the current clamp
sensor's round opening.
Place the clamp around one conductor at a time.
8. The analog reading is shown on the multimeter / oscilloscope.
When measuring direct current with the current clamp, the multimeter / oscilloscope shows
DC voltage.
When measuring alternating current with the current clamp, the multimeter / oscilloscope
shows AC voltage.
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