Hardware instruments have settings that are divided into two groups: Instrument settings, that affect all channels of the instrument and Channel settings, which only influence a specific channel.
The instrument(s) opened by the Multi Channel software can be controlled in different ways. The most convenient way is to control the instruments and their channels by means of the toolbars, shown at the top of the main window.
This page describes the instrument toolbar. For configuring the channels, visit the page about the Channel toolbar.
An instrument toolbar is created for each detected instrument. The instrument toolbar is fully configurable through the program settings. It shows the current settings of the instrument and allows to change all settings.
In the default setup, the instrument toolbar contains the following items:
Both actions can also be executed by hotkey S.
When no measurement is running, the One shot button is enabled. It can be used start a single shot measurement (hotkey O).
The Auto setup button can be used to let the software quickly change several instrument settings, to acquire stable measurements. Use it by clicking the button or pressing its hotkey Q (quick auto setup). When the CTRL key is pressed while starting the auto setup, the instrument will stay in auto setup mode. This can be used to track changing signals. Choose which instrument settings may be changed by auto setup in Settings->Instruments->Auto setup.
The measure mode button can be used to switch between block- and streaming mode. Switching the measure mode requires the instrument to be stopped measuring.
This item displays the instrument name as well as its serial number, which is a unique number in your measuring instrument. By using the serial numbers as the instrument ID, it is clear which of the instruments you are controlling. Clicking the instrument ID will show a popup menu with all instrument settings.
The pre samples turning knob controls the pre and post samples ratio. By default, no pre samples are used and it is set to 0%. Dragging it up and down adjusts the knob, a hovering readout displays the current setting. Right clicking it shows a popup menu with predefined settings and a user defined setting.
Other controls that can be placed on the instrument toolbar are:
The sample frequency readout shows the current sampling frequency. Clicking the readout shows a popup menu with available sample frequencies.
Two buttons are available to increase or decrease the sample frequency:
The steps that are taken are the sample frequencies that are available in the sample frequency menu of the instrument. When a user defined sample frequency was selected, each subsequent click on one of these buttons will double or halve the sample frequency.
The record length readout shows the current record length. Clicking the readout shows a popup menu with available record lengths.
Two buttons are available to increase or decrease the record length:
The steps that are taken are the record lengths that are available in the record length menu of the instrument. When a user defined record length was selected, each subsequent click on one of these buttons will double or half the record length.
The resolution readout shows the current resolution. Clicking the readout shows a popup menu with available resolutions.
Two buttons are available to increase or decrease the resolution:
The steps that are taken are the resolutions that are available in the resolution menu of the instrument.
Two buttons are available to increase or decrease the pre trigger percentage:
The oscilloscope time/div readout shows the current time/div setting as if the instrument is used as oscilloscope. Clicking the readout shows a popup menu with available time/div settings.
Two buttons are available to increase or decrease the oscilloscope time/div:
The steps that are taken are the time/div settings that are available in the time/div menu.
Two buttons are available to increase or decrease the oscilloscope time resolution:
An oscilloscope measurement has a record length and a sample frequency. This gives a total measuring time. With each subsequent click on one of these buttons, the record length and sample frequency are respectively halved or doubled. The total measuring time remains equal, but the time resolution will decrease or increase.