Diagnostics; Operating The Startup Diagnostics; Operating The User-Initiated Diagnostics - Waters 2410 Operator's Manual

7.3 Diagnostics

This section describes the startup and user-initiated diagnostics for troubleshooting the 2410
refractometer. Use the diagnostics to determine, set, or test:
• Software version
• LED current strength
• Energy transmitted from the photodiode
• Voltage transmitted from the sample side of the photodiode
• IEEE address
• Auto zero offset
• Factory defaults
• Noise and drift
• Keypad and LED display and indicators
This information may be helpful if you need to call Waters Technical Service for assistance.

7.3.1 Operating the Startup Diagnostics

For a complete explanation of the 2410 refractometer startup diagnostic routines, see Section 5.3,
Starting Up the 2410 Refractometer.

7.3.2 Operating the User-Initiated Diagnostics

The 2410 differential refractometer provides several user-initiated diagnostics to:
• test the operation of the instrument
• aid in setting operating parameters
Table 7-5 provides a list of diagnostics, the key sequence the user enters to run the diagnostic, and a
description of the operation, range of values, and defaults for each diagnostic.
To run the diagnostic functions,
1. Press 2nd Func, Clear, Clear, then press Enter. The value diag is displayed. Then enter
the appropriate key sequence indicated in Table 7-5.
7
Diagnostics 7-13