70-6676 Getting Started- CoulArrayÂ® Data Station V3 - VTP UP

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Chapter 44.3.3 Setting the Temperature of the Thermal OrganizerIf the system includes a thermal organizer, its temperature can be set by checking the Heatingon/off check box in the bottom center of the Control dialog. Enter the desired temperatureand click the Set button. The temperature of the thermal organizer will be driven to theindicated set point, with the actual temperature updated in the dialog and on the organizerevery 10 seconds.4.3.4 Setting Autosampler ControlsIf an autosampler is included in the system and selected in the Instrument Options, theAutosampler Control group of controls will appear in the Control dialog. The Pre-Run Oventemperature (if applicable) and Pre-Run Tray temperature (if applicable) can be set byentering values in the appropriate edit fields, and the thermal circuits can be started byclicking the appropriate button. The tray can be advanced (on the Model 540 Autosampler)and the wash function can be started or stopped by clicking the appropriate buttons.4.3.5 Setting Relay ControlsThe checkboxes in the Relay Control grouping of the Control dialog are provided to initiatean autosampler (connected through contact closures), initiate a gradient (for systems thatcontrol the pumps and/or autosamplers locally), open a valve, or control any of 5 auxiliaryrelays.To initiate a relay action, check the check box adjacent to the relay type.• For the Autosampler and Gradient Start relays, a signal will be sent to theexternal device to initiate the relay action. In order to perform the action again(e.g., start the gradient again) it will be necessary to uncheck the check box andthen check it again to re-initiate the action.• For a Valve or Auxiliary relay, the status of the device is changed wheneverthe check box is checked. If the valve is presently closed, it will be openedand remain opened until the check mark is removed (and vice versa).4.4 Collecting DataAt this point, the pumps are delivering mobile phase at the desired flow rate, the desiredtemperature for the thermal organizer has been set (if applicable) and the cell potentials havebeen set. To start collecting data (e.g., if you would like to determine the baseline signal witha given column and mobile phase), click the Collect button in the Data Collection group.This action opens the Control View window, which shows a live display of the current fromeach channel over time (the chromatogram), as shown in Figure 4-4. (A Control buttonappears on the Windows task bar. Click the Control task button, or the dialog’s Minimize36 CoulArray ® Data Station 3.00Getting Started Manual
Hardware Control and Configurationbutton, at the upper right, to keep it from obstructing the Control View window if necessary.Click the Control task button again to reopen the dialog.)Figure 4-4: The Control View WindowIf desired, you can view the live current and cell potentials for each electrode in the leftcolumn of the display by clicking once or twice on the blue right arrow ► button in the lowerleft corner of the window. Click the left arrow ◄ button to remove the live current andpotentials display. The various elements of the chromatogram display window are describedin detail in Chapter 5 of the Applications Software Manual.The current for each cell can be set to 0.00 by clicking the Auto Zero ON button in theControl dialog. To return to the “raw” values, click the Auto Zero OFF button. (Auto Zerocan also be activated by clicking the Auto Zero button in the chromatogram window.)While viewing the live chromatogram, you can change any parameter (e.g., a cell potential orflow rate) or terminate data collection, by restoring the Control dialog (Restore button in theupper right corner, or Control button on the task bar) and editing as necessary. Systemcontrols can be changed as described above and any change will take effect immediately.The Print Status button on the Control dialog is used to obtain a hard copy report of theinstantaneous potential/current data.CoulArray ® Data Station 3.00 37Getting Started Manual
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70-6676 Getting Started- CoulArrayÂ® Data Station V3 - VTP UP

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