Create a combined instrument from two or more instruments

Introduction

With the Multi Channel oscilloscope software, you are not limited to number of channels of one oscilloscope. It is possible to combine two or more oscilloscopes to form a combined instrument. Once the instruments are combined, the resulting single oscilloscope works just like a normal oscilloscope. There is no limit to the number of channels in a combined oscilloscope.

Combining is possible with the following instruments:

Handyscope HS5 and Handyscope HS6 DIFF

The Handyscope HS5 and Handyscope HS6 DIFF can be combined in any combination of these instruments. When combining a Handyscope HS5 with a Handyscope HS6 DIFF, the maximum sampling rate of the combined instrument is limited to 100 MS/s.

Combining in hardware

The measuring systems of the individual Handyscope HS5s and/or Handyscope HS6 DIFFs are coupled to each other by means of TP-C50H Coupling cables which are placed on the AUX IO and/or CMI connectors of the instruments. Between each two instruments a TP-C50H Coupling cable is used. When the instruments are combined using the TP-C50H Coupling cable, they will share the same sampling clock and trigger signals, making it possible to perform fully synchronized measurements on all channels simultaneously.

Combining in software

Combining Handyscope HS5s and/or Handyscope HS6 DIFFs is done fully automatically. When the instruments are connected to the computer and the TP-C50H Coupling cables are connected to the AUX IO or CMI connectors of the instruments, the Multi Channel oscilloscope software can be started. It will automatically detect which instruments are connected to each other and combine them to one larger combined instrument.

Adding an instrument to an existing combined instrument

Extra instruments can be added to an existing combined instrument. To add one or more Handyscope HS5s and or Handyscope HS6 DIFFs to an existing combined instrument of Handyscope HS5s and or Handyscope HS6 DIFFs, close the software, connect the new instruments to the combined instrument using additional TP-C50H Coupling cables and start the Multi Channel oscilloscope software again. The new, larger combined instrument will be detected and opened.

Removing an instrument from a combined instrument

To remove one or more Handyscope HS5s or Handyscope HS6 DIFFs from an existing combined instrument of Handyscope HS5s and/or Handyscope HS6 DIFFs, close the software, disconnect the required instruments from the combined instrument and start the Multi Channel oscilloscope software again. The new, smaller combined instrument will be detected and opened.

Handyscope HS3, Handyscope HS4 and Handyscope HS4 DIFF

With Multi Channel oscilloscope software version 1.34 and older, USB driver version 6.0.8 for the Handyscope HS3, Handyscope HS4 and Handyscope HS4 DIFF, the Handyscope HS3, Handyscope HS4 and Handyscope HS4 DIFF can be combined in any combination of these instruments.

With Multi Channel oscilloscope software version 1.34 and older, USB driver version 7.1.10 or version 7.2.1 for the Handyscope HS4 and Handyscope HS4 DIFF, the Handyscope HS4 and Handyscope HS4 DIFF can be combined in any combination of these instruments, but not with the Handyscope HS3.

With Multi Channel oscilloscope software version 1.35 and newer, USB driver 8.1.4 or newer for the Handyscope HS3, Handyscope HS4 and Handyscope HS4 DIFF, the Handyscope HS3, Handyscope HS4 and Handyscope HS4 DIFF can be combined in any combination of these instruments.

Combining in hardware

The measuring systems of the individual Handyscope HS3s, Handyscope HS4s and Handyscope HS4 DIFFs are coupled to each other by means of a special coupling cable which is placed on the extension connectors of the instruments. For more information regarding this special coupling cable, please contact TiePie engineering.

Combining in software

When the instruments are connected to the computer and the special coupling cable is connected to the extension connectors of the instruments, the Multi Channel oscilloscope software can be started. Initially, it will show the connected instruments individually.

To combine the instruments, open the Create combined instrument... dialog through the Instruments menu.

Create combined instrument dialog

All connected instruments are listed in the dialog. Select the instruments that need to be combined and then press the OK button. The selected instruments will be combined to one larger combined instrument.

Combined instrument

In the example above, a Handyscope HS3 and a Handyscope HS4 are combined to a six channel instrument. All six channels can be measured simultaneously, both in block mode and in streaming mode. Any of the channels can be used as trigger source:

Combined instrument trigger sources

Adding an instrument to an existing combined instrument

Extra instruments can be added to an existing combined instrument. To add an instrument to the combined instrument, first connect the extra instrument(s) with the instruments already contained in the combination, by means of a coupling cable. Now the extra instrument(s) can be added to the combination by dragging them onto the combined instrument in the object tree.

Removing an instrument from a combined instrument

When one or more instruments need to be removed from a combined instrument, right-click the combined instrument in the object tree. In the appearing popup menu, click Extract. This will bring up a dialog that allows selection of instruments that need to be extracted from the combined instrument. The extracted instruments will reappear as individual instrument in the object tree.

Restrictions

When multiple oscilloscopes with different maximum sampling frequencies or maximum record lengths are combined, the combined oscilloscope will have a maximum sampling frequency and record length equal to the lowest maximum frequency and record length of the oscilloscopes that are combined.