User manual

Operating Basics
4
A621 Instructions
If you are using the A621 with a multimeter, use the BNC-to-banana
adapter (recommended accessory) to connect the probe. Connect the
black lead to the meter COM, and the red lead to the VΩ input. Set
the meter to the AC Volts position.
To increase the measurement sensitivity of the A621, loop additional
turns of the wire under test through the jaws. See Figure 3. The
sensitivity of the A621 will be multiplied times the number of loops
in the jaws. For example: 10 mV/A X 4 turns = 40 mV/A.
Figure 3: Increasing the A621 Sensitivity