All options are stored in an XML file on your computer. All settings can be set from the Record module or the Process Master module. You find the settings via menu bar -> Extras -> Options. If you have installed the IMAGO on a new PC, start Record or Process Master. A message box occurs which prompts that no registry entries were found for loading. A window occurs where all information can be input. If you do not want to write to the registry now, press Cancel. The window can be opened also via menu bar -> Extras -> Options. General - The Windows setting for a specific country can be chosen for each PC. Nevertheless, some programs expect the decimal point as comma, others as dot. The setting of the Decimal Point ensures that no matter which country setting you are using, the output is according to the set decimal point. Recording - The A/D-converter resolution defines the resolution which is written to the BIN file. Since the NI-DAQmx driver, the input from the A/D converter is automatically converted to a value in Volts. To be able to write the old binary format file, this setting is used to calculate the digital values for the BIN file. - Nr of channels of first A/D-converter defines the number of channels of the first A/D converter. Imago can record channels from two different A/D converter cards. Since the NI-DAQmx driver, IMAGO expects the first card to be Dev1 and the second card to be Dev2. Use the Measurement & Automation Explorer from Nation Instruments to rename your devices if necessary. All channels which are bigger than this setting are chosen from the second A/D converter card. - Converter input range is used to convert voltages out of the recorded binary information. This information is also used to set the maximum and minimum expected voltage for the A/D converter via the NI-DAQmx driver. - Threshold Stimulus Current [mA] is used in the online recording mode H-reflex vs Stimulus current. For the current measurement, this threshold is used to distinguish between noise and signal. All samples above the threshold are cut out of the signal piece and the value in the middle of the current impulse is recorded to prevent overshoots. - Digital trigger channel defines the channel which will be converted from an analog signal to a digital trigger signal. Normally the last analog channel is used for the digital trigger input signal. - Digital trigger resolution defines the number of bits the external Digital to Analog converter uses. IMAGO expects that the D/A converter uses the complete Converter input range. If you set this value e.g. to 4, IMAGO expects that 24 = 16 digital trigger values are input. The input voltage range from -10V to 10V is divided into 16 pieces. Each digital trigger has an analog voltage range of 1,25V. You get the following list of digital triggers:
Analog voltage range | Digital trigger
-10V .. -8.75V | 0
-8.75V .. -7.5V | 1
-1.25V .. 0.0V | 7
0.0V .. 1.25V | 8
1.25V .. 2.5V | 9
7.5V .. 8.75V | 15
8.75V .. 10.0V | 16
Digital Trigger resolution = 1 is specially treated to be able to use a TTL signal as digital trigger. In this case, the threshold between digital trigger signal 0 and 1 is moved to 2V. Instruments - Instrument Selection defines the instruments which are used for the recording. If no amplifiers are used, select the Channel Definition Instrument. If APV and/or Madaus are used the signal amplification, the PC ports for the instruments must be selected. Paths - Record path and filename defines the standard path to all setup files for the Record module. The filename is always loaded as default when the program is started. - Madaus path defines the standard path to all Madaus instrument setup files. - Channel Definition path and filename defines the standard path to the Channel Definition Instrument setup files. The filename is always loaded as default when the program is started. - Path to Process Setup files defines the path where all setup files from the Process Master module are saved. - Graphic Save Path is only used in a special mode of the processing modules VIEW. It defines the path to all stored graphics. - Path to the Internet Explorer defines the program which is used to view HTML content like the help files. - Fix data volumes is used from the Load module to search all listed directories from different volumes and generate a list of all found IMAGO directories (directories with the name BIN, CHAN, EXCEL) found in the first or second directory level. If the data are organized in the following way, IMAGO will list all available project paths with one entry x:\IMAGO: x:\IMAGO\Project1\bin x:\IMAGO\Project1\chan x:\IMAGO\Project1\excel x:\IMAGO\Project2\bin x:\IMAGO\Project2\chan x:\IMAGO\Project2\excel x:\IMAGO\Project3\bin x:\IMAGO\Project3\chan x:\IMAGO\Project3\excel Since fix volumes do not change while processing data, this is only done once when the Load module is called the first time. To remove an entry, click the right mouse button and select Remove element. - Removable data volumes is used from the Load module to search all listed directories from different volumes and generate a list of all found IMAGO directories, like the Fix data volumes. Since removable volumes (e.g. CDs) can change from one start to the next, these volumes are searched every time the Load module is opened. Use the same directory structure on all your CDs to ensure that IMAGO automatically finds all IMAGO data. To remove an entry, click the right mouse button and select Remove element.