Tektronix A622 current probe, series photo of a clamp-on current probe with a red ring-shaped jaw, dark gray handle and black cable

Tektronix A622 Current Probe, AC/DC Clamp, DC to 100 kHz, 100 A Peak, BNC Output

Name: Tektronix A622 Current Probe, AC/DC Clamp, DC to 100 kHz, 100 A Peak, BNC Output
SKU: LIH-A622
Availability: InStock

The Tektronix A622 current probe clamps around one conductor and reads AC and DC current from DC to 100 kHz, up to 100 A peak. Its BNC output feeds an oscilloscope. Lost in HCM rents and sells it in Vietnam.

SKU: LIH-A622

Category: Oscilloscope probes

Description

Some faults hide in the current, not in the voltage. The Tektronix A622 current probe lets you see that current on an oscilloscope without cutting a wire. It is a clamp-on AC/DC current probe: the jaw closes around one conductor, and a BNC output carries a scaled voltage to the scope. Lost in HCM offers it for rental and for sale, and it also arranges service on request.

Why DC response matters

Because the A622 reads from DC up to 100 kHz, it shows the steady part of a current as well as the ripple on top. So a battery charger, a 24 V actuator or a DC fan loop shows its true level, not just the AC part. In addition, start-up surges and PWM loads appear in the same trace. That makes the probe a handy partner for teams who chase drive and supply faults.

Key figures from the listing

Mode: AC and DC, from DC to 100 kHz.
Current: 100 A peak under the maker’s stated conditions.
Output: BNC, with 10 or 100 mV/A sensitivity.
Jaw size: conductors up to 11.8 mm across.
Bare-wire limit: 600 V CAT III.

Choosing the sensitivity on the Tektronix A622 current probe

The probe offers two output steps. At 100 mV/A, small currents draw a taller trace, so pick it for loads of a few amps. At 10 mV/A, the screen holds larger currents before the trace clips. Then set the scope’s probe factor to the same step. Otherwise each reading on screen will be off by a factor of ten.

Clamping habits that keep readings honest

First, clamp around one conductor only. If the jaw holds both the supply and the return, their fields cancel and the trace falls toward zero. Next, zero the probe before a DC reading when the manual calls for it. Also keep the peak rating in mind, because 100 A peak is not a continuous rating. Finally, respect the 600 V CAT III limit, and switch off the circuit before you fit the jaw where your site rules say so.

Rent it for a study, or buy it for the bench

A short rental suits a line audit, a warranty case or a one-off motor study. Meanwhile, a purchase makes sense when the probe will sit beside a bench scope for years. Either way, note the scope model, expected current, signal frequency and wire size, so the supplier can match the setup to your Tektronix A622 current probe. Then request a quote from Lost in HCM, browse other oscilloscope probes, or contact SMK Vietnam with questions. Tektronix keeps its manuals on tek.com.

A622 questions from maintenance teams

Can it read battery DC current?

Yes. The A622 measures AC and DC, so a steady battery current shows as a level on the scope. Zero the probe first if the manual asks for it.

Which sensitivity should I start with?

Start at 10 mV/A when you expect large currents. Then switch to 100 mV/A if the trace looks small.

Does it need a separate amplifier?

The listing shows the BNC output going straight to a compatible oscilloscope input, and it names no amplifier. Still, confirm your scope input and termination with Lost in HCM.