The following elements are available:
STATUS LED
The STATUS LED provides a quick visual check of the operational status of the device. When the doors are closed, the LED bar on the front side indicates the operational status.
Buttons
The buttons allow you to perform certain functions directly from the device. When you press a button, a short beep confirms that the function is performed.
STATUS LED
The STATUS LED on the keypad provides the following information:
STATUS LED | Description |
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Off (dark) | The power to the device is turned off. |
Green | The device is functioning properly. |
Red | A problem or error has occurred. Check the message on the notification panel. For remedial action, see Troubleshooting. |
For information about the LEDs that are present next to a button on the keypad, see the Keypad Buttons table.
Keypad Buttons
The buttons have the following functions:
Autosampler and Pump
Button | Function |
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DOCK | Pressing the button moves the selected pump head to the appropriate position for maintenance procedures, such as pump head or piston replacement. When the pump head is in the maintenance position, the LED next to the FLOW button starts flashing green. Pressing the button again, returns the pump head into the position for operation. The LED stops flashing green. |
FLOW | Pressing the button starts or stops the flow, considering the selected flow rate and solvent composition. The LEDs L and R next to the button refer to the left or right pump head:
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MUTE ALARM | Beeping alerts you when the device detects a problem, for example, leakage. To turn off the beep for the current alarm, press this button. Eliminate the source for the alarm within 10 minutes. Otherwise, beeping starts again. If the device detects a different problem, beeping alerts you again immediately. |
PURGE | Reserved for future use. For information on purging, see Purging (Overview). |
ROTATE | Pressing the button allows rotating the carousel counterclockwise to the next loading position. |
SELECT | Autosampler
Pump Pressing the button selects the pump head for which you can perform a DOCK function from the keypad:
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SERVICE | The button has these functions:
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VALVE | Pressing the button allows switching the injection valve to Bypass position. The LED B lights green when the injection valve is in Bypass position. |
WASH | Pressing the button initiates an outer needle wash cycle, in which the outer needle surface is washed in the wash port. After the needle wash cycle, the needle moves back to the needle seat. |
Column Compartment
Button | Function |
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MUTE ALARM | Beeping alerts you when the device detects a problem. To turn off the beep for the current alarm, press this button. Eliminate the source for the alarm within 10 minutes. Otherwise, beeping starts again. If the device detects a different problem, beeping alerts you again immediately. |
TEMP CTRL | Pressing the button turns the temperature control on or off:
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VALVE LEFT | Pressing the button switches the left column switching valve (if installed). Pressing and holding the button activates the catch valve function if a VICI valve is installed in the left valve position. With 2-position 6-port valves, the LEDs next to the button indicate the current valve position:
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VALVE RIGHT | Pressing the button switches the right column switching valve (if installed). Pressing and holding the button activates the catch valve function if a VICI valve is installed in the right valve position. With 2-position 6-port valves, the LEDs next to the button indicate the current valve position:
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