The keypad inside the device allows you to perform certain functions directly from the device. When you press a button, a short beep confirms that the function is performed.
When the device is connected in the Chromeleon software, some functions may not be available from the keypad (see further down in this section).
STATUS
The STATUS LED provides a quick visual check of the operational status of the device.
When the door is closed, the LED bar on the front side indicates the operational status.
For status details, see Status Indicators.
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.
FAST COOL
Pressing this button cools down hot surfaces in the column compartment quickly, for example, to allow fast and safe access to the components for replacement or maintenance procedures. For details, see Important Operating Parameters.
The button LED is red while cooling is in progress. When the cool down temperature has been reached, the LED is green, indicating that you can safely access the components.
To cancel the Fast Cool mode, press the button again. The button LED is off and the components are heated up to the latest setpoint temperature. The Fast Cool mode can also be cancelled via the Chromeleon software.
UPPER VALVE , LOWER VALVE
Pressing these buttons switches the (upper or lower) column switching valve (if installed).
With 2-position 6-port valves, the LEDs next to the button indicate the current valve position. The upper LED is green when the valve is in position 1. The lower LED is green when the valve is in position 2. The LEDs are off during valve switching.
When the Device is Connected in the Chromeleon Software
The button functionality is as follows when the device is connected in the Chromeleon software:
No injection or sequence is running:
All functions are available from the keypad.
An injection or sequence is running:
The MUTE ALARM function remains available from the keypad, allowing you to turn off the beep for the current alarm.