The PicoScope 4444 can facilitate
differential voltage measurements in the presence of common-mode signals, with
14-bit resolution and 20MHz bandwidth on all four differential channels and
256MSa waveform capture memory. It is ideal for the precise analysis of complex
waveforms ranging from biomedical sensors to current probes and 1000 V CAT III
power distribution circuits. The PicoScope 4444 offers a choice of complementary
1:1 low-voltage and 25:1 1000V CAT III probes to address these and other
situations. The oscilloscope has
an intelligent probe interface that can provide power for a wide range of PicoConnect
voltage probes, current probes such as Hall effect DC/AC, and Rogowski coil
type active current probes. The scope automatically
detects when a compatible probe is connected and sets the corresponding units
and vertical settings in the supplied PicoScope 6 software.
The USB-powered PicoScope 4444 is available in two kits that include key accessories:
·
PicoScope 4444 Standard
Differential Oscilloscope Kit, consisting of a PicoScope 4444, three differential 1:1 probes and
one TA271 BNC single input adaptor.
·
PicoScope 4444 1000 V CAT III
Differential Oscilloscope Kit, consisting of a PicoScope 4444, three 1000 V CAT III 25:1
differential probes and one BNC input adaptor.
Scientists and electronics engineers frequently need to make
low-voltage measurements in the presence of high common-mode noise or varying
offset voltages. Ground-referenced oscilloscopes require the use of two input
channels and an A–B math function to observe the differential signal of
interest. But, in addition to requiring two input channels, most scopes don’t
have a high enough common-mode rejection ratio (CMRR), nor the resolution to
make measurements with sufficient precision.
Engineers working on polyphase power distribution systems need to
measure phase-to-phase AC voltages, rather than phase to ground. A
ground-referenced scope can’t be used as it will cause a short circuit.
External differential probes are a solution but they are quite expensive and
cumbersome, with each probe requiring its own power supply. The PicoScope 4444 provides the solutions for
each of these situations, but it can also be used as a general purpose scope with
all the useful features that PicoScope software provides - such as serial bus
decoding, mask and limit testing, math channels and automatic measurements.
Made
by Pico Technology, Europe’s award-winning oscilloscope adapter manufacturer, PicoScope
4444 High-resolution Differential Oscilloscopes are available now from
Saelig Company, Inc. their USA technical distributor. For detailed
specifications, free technical assistance, or additional information, please contact
Saelig 888-7SAELIG, via email: info@saelig.com, or
visit http://bit.ly/2tIxKrF
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