WATERS CORPORATION 2424, Operator'S Manual, Page: 134 / 196

5-8 Diagnostic Functions and Troubleshooting
2. For the outputs listed, you can take the following actions:
a. Press Enter to display the active switch (surrounded by a
dotted-line border).
b. Press any numerical key to change the status of the switch (from On
to Off, or vice-versa).
Lamp, display, and keypad diagnostic functions
To access the lamp, display, and keypad diagnostic functions, press DIAG 5.
Change Lamp diagnostic function
Use the Change Lamp diagnostic function to enter the serial number and
installation date of a new lamp.
To use the Change Lamp function
1. From the Lamp, display & keypad menu, press 1, Change lamp. The
Change Lamp diagnostic screen appears.
Change Lamp diagnostic screen
2. Enter the serial number of the new lamp and the date it was installed;
then press Enter. The second Change Lamp diagnostic screen appears.
Second Change Lamp diagnostic screen