Measuring AC with 4444 and PicoLog 6

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Kmw4Es
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Joined: Thu Dec 19, 2019 11:22 pm

Measuring AC with 4444 and PicoLog 6

Post by Kmw4Es » Fri Dec 20, 2019 12:10 am

I cannot measure AC V and I with model 4444 and PicoLog. The software doesn’t seem to see the probes. Picolog shows millivolts and milliamps, when the probes are connected to the mains feeding a 100 watt light bulb, and I should see about 120 VAC, 0.800 amps or so.

Before trying the measurement in PicoLog, I am able to verify the setup is working correctly with the Picoscope 6 software. I can measure both AC and DC V and I with the Picoscope 6 software, but only DC V and I with the PicoLog.

We tried running both as administrator or as a normal user, but did not observe any differences in operation.

I am using Picoscope 4444, with TA300 current probe and the 442 voltage probe. These items are of recent purchase. The 4444 is using the wall supply.
4444 driver ver 2.1.20.1574n.
USB 3.0 - I am using the supplied 2 mtr length USB 3.0 cable directly into a rear port on the PC, and no change when using a different 2 mtr length cable.
Win 10 ver 1909, with the 2019-12 cumulative update, KB4530684.
ASUS x470 Pro and Ryzen 5 2600X.
PicoScope 6, ver 6.14.10.4759, PicoLog 6, ver 6.6.1.13

AndrewA
PICO STAFF
PICO STAFF
Posts: 258
Joined: Tue Oct 21, 2014 3:07 pm

Re: Measuring AC with 4444 and PicoLog 6

Post by AndrewA » Mon Dec 23, 2019 1:52 pm

Hi,
Picolog 6 will detect the TA300 current probe and the 442 voltage probe, using the Picoscope 4444.
But Picolog 6 is only able to sample at maximum rate of 1ms (1kHz) per channel.
So this is not good enough to clearly see 50/60Hz waveforms, so you will need to PicoScope 6 software for these measurements.
Regards Andrew
Technical Specialist

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