Preventive Maintenance and Troubleshooting
Fault light symptoms
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Fault light symptoms
Four light-emitting diodes (LEDs) on the injector indicate the status of the
injector. Two LEDs on the controller module indicate the status of the
controller and the tray if it is installed.
During normal operation, the controller’s green LED and the injector’s green
LED are on. If the injector is busy, the injector’s yellow LED is also on.
When a problem occurs on the injector, the red LED flashes. When a problem
occurs with the turret alignment, the yellow Align LED is on (located behind
the injector front panel). When a problem occurs on the tray or controller, the
yellow LED on the controller flashes, and a beeper sounds in synchronization
with the flashes.
If the automatic liquid sampler is controlled by an external device (i.e., not
standalone), the controller sends error messages to the controlling device. For
example, the ChemStation software displays an error message. The controller
LEDs do not flash.
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