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Stop: stop condition of the acquisition -Automatic: when the block is full -Trigger: with an association of the analogical or logical channels -see Chapter6 Trigger Trigger mode Double Trigger: see below Memory mode . Following: actions after the end of the acquisition -Stop: no action -Ream: waiting for the start condition -Change Setup: loading a configuration and waiting for the start trigger 11.2. Limits Real-time acquisitions on file are limited by the transfer rate between the inputs and the saving hardware liek an internal hard disk or a USB key. This limit depends on the type of the acquisition file: binary or ascii. 11.1.1.Binary file The maximum transfer rate is 1,200,000 bytes/s (1.2 Mbyte/s). In order to know the number of channels that you can record for a given acquisition period, you have to calculate: number of channels = 1,200,000 x acquisition period example: acquisition period: 10 s number of channels = 1,200,000 x 10 s = maximum 12 channels 11.1.2.Ascii file The maximum transfer rate is 1,000 bytes/s (1.0 Kbyte/s). The minimum acquisition period is 1ms. In order to know the number of channels that you can record for a given acquisition period, you have to calculate: number of channels = 1 000 x acquisition period Page 2 11 File mode example: acquisition period: 10 ms number of channels = 1 000 x 10ms = maximum 10 channels Impossible is displayed when the saving capabilities are overrun: reduce the sampling rate or the number of channels Page 3 12 File management 12. FILE MANAGEMENT 12.1. General For all possible types of files, the appliance has an internal hard disk and can admit an USB key, which makes it possible to: -save and load the total configuration of the recorder -save and load an acquisition. The names of the configuration files are identified witha *.CNF extension. The names of the acquisition files are identified witha *.REC extension. You can create directories and save files into them. Press the Create Directory key when suggested. . HD / USB key: read / write on internal hard disk or USB key (if it has been connected at the power-up of the appliance) Page 1 File management . Create directory: creation of a directory; you can then enter its name thanks to an alphanumerical keyboard that is displayed on the screen . Goto: change of directory . Delete: deletes the selected directory It is advised to work under a directory, and not on the root of the hard disk. It is easier for files organisation and for files deletion. When you delete a directory, all file under this directory are deleted 12.2. Management of the configuration files The management page for the configuration files is associated with the "Setup" key. Their name has a ".CNF" extension. . Reset: initialisation of the appliance under standard configuration . Internal memory: saving / loading a configuration in internal non volatile RAM memory . Save to disk: saving a configuration into a file on the hard disk or an USB...

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