1
Startup/Shutdown
25
Note:
Use only thoroughly degassed HPLC-grade solvents. Gas in the mobile
phase may form bubbles in the flow cell and cause the detector to fail the Reference
Energy diagnostic.
2. Flush the detector for 10 minutes or until no bubbles appear in the outlet line.
3. Press the 0/1 (Off/On) switch on the front panel of the detector (
) to the
1
(On) position.
4. Observe the Lamp and Status indicator lights on the front panel of the detector
(
).
• If both lights remain illuminated, the detector passed the internal diagnostics.
• If either indicator light blinks or is off, refer to the troubleshooting tables in
Chapter 2, Diagnostics and Calibration
.
Figure 1-8 996 Detector Indicator Lights
5. Wait 1 hour for the deuterium lamp to stabilize before you attempt to acquire
data at low absorbances.
TP01460
LAMP
WATERS 996
Photodiode Array
Detector
On/Off
Switch
Status
Indicator
Lamp
Indicator