Picotech have launched a new version of the popular PicoScope 4444 differential oscilloscope kit, whether you want to measure single or 3 phase voltage or current, or perhaps single phase voltage and current.

The PicoScope 4444 1000 V CAT III kit is a high-resolution differential oscilloscope with three PicoConnect 442 25:1 passive differential voltage probes and three TA368 2000 A AC Rogowski current probes both rated for rated at 1000 V CAT III measurement. It also includes one TA271 single-ended D9-BNC adaptor.

It is used in non-ground-referenced measurements, safe probing of single phase and 3-phase voltages and currents, measuring power drawn by mobile and IoT devices, hybrid and electric vehicle design, motor drives and inverters. The TA271 D9-BNC adaptor lets you use traditional differential voltage probes and current probes, and make single-ended measurements with a ground-referenced probe.

The PicoScope 4444 is now supported in PicoLog 6.1.9 allowing multiple units to be used simultaneously, so it is possible to view and record 3 phase voltage and 3 phase current on one capture with two PicoScope 4444s. PicoLog 6 has a sample rate limit of 1 kS/s per channel, so while it’s no good for waveshape or harmonic analysis, it’s great for viewing general parameters such as phase, voltage and current levels with many channels simultaneously, or alongside another device such as a logger. For example monitoring building and HVAC power usage. While you’re measuring the voltage and current you can, for example, plot this against temperatures using a TC-08, or humidity with a DrDAQ.