Starting Up and Shutting Down the Detector 13
1
Shutting Down the Detector
To shut down the 2996 Detector:
1. If the mobile phase contains buffers, set the solvent delivery system or pump to
deliver 1 mL/min of HPLC-grade water for 10 minutes. Otherwise, set the solvent
delivery system or pump to deliver 1 mL/min of degassed methanol for 10 minutes.
2. Press the 0/1 (Off/On) switch on the front panel of the detector to the 0 (Off)
position.
OFF FLASHING The 2996 is running
power-on self-tests.
FLASHING FLASHING 2996 has failed one of
the self-tests.
Contact Waters Technical
Service.
OFF FLASHING The 2996 is running
Confidence tests.
ON FLASHING Lamp start was
successful. The 2996
is starting calibration.
ON FLASHING for more
than 30 seconds
The 2996 may not
have calibrated
correctly.
Could be air bubble in flow
cell (Table 2-1). Contact
Waters Technical Service.
ON ON Calibration was
successful.
Table 1-4 LED Indicator Sequences During Startup (Continued)
Lamp LED Status LED Indicates Troubleshooting
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