Datasheet

PicoScope 4444 differential oscilloscope
D9-BNC adaptors: use BNC accessories with the PicoScope 4444
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. It is also essential when using the TA325 and TA326
current probes.
The TA299 D9-dual BNC adaptor allows you to make differential measurements by connecting two ground-
referenced passive probes or cable pairs to one scope input.
TA325 flexible 3-phase current probe
The TA325 is a switched-range 30/300/3000 A AC RMS probe with 10 Hz to 20 kHz bandwidth,
rated to 1000 V CAT III on uninsulated conductors. Suitable for measuring 3-phase AC current, it
has three sensor coils and scope connection leads, color-coded to match Channels A, B and C in the
PicoScope software. Typical battery life is 1000 hours.
You will need three TA271 D9-BNC adaptors in order to use this probe with the PicoScope 4444.
TA326 flexible current probe
The TA326 is a switched-range 30/300/3000 A AC RMS probe with 10 Hz to 20 kHz bandwidth,
rated to 1000 V CAT III on uninsulated conductors. Typical battery life is 2000 hours.
You will need one TA271 D9-BNC adaptor in order to use this probe with the PicoScope 4444.
Flexible AC current probes
The TA325 and TA326 current probes use the Rogowski coil principle to measure AC currents up to 3000 A, without suffering from saturation. These probes have flexible sensor coils, enabling you to
measure currents on conductors that clamp-type current probes just can’t get to, while the long battery life means you can leave them connected for longer-term measurements.
Both of these probes are fitted with BNC connectors, so you will need to use TA271 single-ended D9-BNC adaptors to connect them to the PicoScope 4444.
D9
D9