User manual

A622 Instructions

Operating Basics

Before using the probe, the batte ries must be installed. See the

battery installation instructions on page 7.

WARNING. Do not clamp the probe onto circuits with voltages greater

than 600 VAC. Personal injury or damage to the probe may result.

Always connect the probe to the instrument before clamping onto the

circuit under test.

1. Connect the probe BNC connector to the oscilloscope input. Start

by setting the oscilloscope channel vertical coupling to DC volts,

the vertical deflection to 0.1 V/div.

2. Move the OFF/Range switchtothe10 mV/A or 100 mV/A

position to power on the probe.

The A622 current probe has a green LED power/battery indicator.

If the LED does not light, replace the battery.

3. Use the ZERO adjustme nt t o ze ro or offset the probe output.

4. Connect the probe to the circuit by opening the ja ws and

clamping around the conductor. See Figure 2.

NOTE. Clamping around both the “hot” and neutral wires may give

you a zero reading.

(Remember to unclamp the probe from the conductor before

disconnecting it from your meter or instrument.)