Using The Ta271 D9-Bnc Adaptor - pico Technology PicoScope 4444 Guide De Démarrage Rapide

Quick Start Guide
1.8.1 Compensating a pair of probes for common-mode voltages
This example uses two MI007 probes set to 10:1 attenuation, but applies to any
single-ended attenuating probes with BNC connectors: just remember to adjust the
Probes settings accordingly.
1. Connect the TA299 adaptor to the scope channel
2. Connect two single-ended oscilloscope probes to the TA299 adaptor
Open the Channel Options menu and select the correct attenuation factor for
3.
your probe. For 10:1 probes, this will be x10.
4. Set the Coupling control to DC
5. Set the Input Range to ±5 V
6. Set the Trigger Mode control to Auto
7. Decide which probe will be the positive probe and which will be the negative
probe
8. Connect the positive probe to Cal + and attach its ground clip to Cal –
9. Attach the negative probe's ground clip to the negative probe tip
10. A square wave will appear on the PicoScope 6 display
11. Adjust the Collection Time until the display contains one cycle of the square
wave signal
12. Adjust the positive probe: trim it until the waveform is as near ideal as
possible, with no overshoot or undershoot visible
13. Without disconnecting the positive probe, connect the negative probe to
Cal + and attach its ground clip to Cal –
14. Set the Trigger Mode to None
15. Trim the negative probe: aim for a null signal, with the amplitude as close to
zero as possible
16. With both probes compensated, you are now ready to test your signal
DO282-2
1.9
your probe. If necessary, follow the steps below to compensate your probe using
the pins on the back of the scope unit.
1.9.1
1. Find the probe compensation pins (marked Cal) on the back of the
PicoScope 4444 unit
2. Connect the probe tip to Cal + and the ground lead to Cal –
3. Follow the probe manufacturer's instructions to compensate your probe
Copyright © 2017 Pico Technology Ltd. All rights reserved.
PicoScope 4444 High-Resolution Differential Oscilloscope

Using the TA271 D9-BNC adaptor

The TA271 D9-BNC adaptor converts the differential
input of the PicoScope 4444 to a single-ended input.
This allows you to connect conventional accessories
such as single-ended and differential voltage probes or
current probes. The adaptor grounds the negative input
of the channel.
The PicoScope 4444 will identify the TA271 adaptor,
but not the probe connected to it. Use the Channel
Options menu in the PicoScope 6 software to set up
Compensating a single-ended probe
5