91
Troubleshooting and Test Functions
Step Commands
Troubleshooting
If the autosampler is unable to perform a specific step due to a hardware
failure, an error message is generated. You can use the injector steps to do
the injection sequence, while observing how the instrument responds. Table
15 summarizes the injector steps, and lists the associated error messages and
probable causes of step failures.
Needle Up/Mainpass Lifts the needle arm to the upper
position and Switches the injection
valve to the mainpass position.
Command available from Control
Module only.
Table 14 Injector Step Commands, continued
Step Action Comments
Table 15 Step Failures
Step Function Probable Failure Modes
Bypass
Valve already in bypass.
Valve not connected.
Defective injection valve.
Plunger Home
Defective or dirty sensor on the sampling-unit flex board.
Defective metering-drive motor.
Needle Up
Needle already in the upper position.
Defective or dirty sensor on the sampling-unit flex board.
Sticking needle-arm assembly.
Defective needle-drive motor.
Vial to Seat
No vial in selected position.
Vial already in seat position.
Defective transport assembly motors.
Sticking transport assembly.
Defective gripper assembly.
Gripper not aligned (see page 87 ).
To Next Page
Loading...
Need help?
General
