Diagnostics
Theory of operation
MAR 2000 13
on the syringe carriage, plunger, and turret to locate the position of these parts
and to control injection speed. Any errors detected are reported to the ALS
interface board/GC main board, which displays the error on the GC.
G2614A Tray
The G2614A Tray consists of a platen which holds the sample vial quadrants, a
bracket, a control board, and a robotic arm assembly that manipulates and moves
the sample vials to the injector.
Half-rectified power to the assembly arrives through the cable to the ALS
interface board, along with control signals. The board within the tray completes
rectification of the 33 VAC power input, interprets all commands, and drives the
robotic arm motors and the bar code reader.
Sensors are located within the tray and robotic arm assemblies to allow the tray
board to determine the location of the gripper and to determine whether or not
the gripper is carrying a vial.
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