Waters 2489 - User-Selected Diagnostic Tests; Overview

5-8 Error Messages, Diagnostic Tests, and Troubleshooting
User-selected diagnostic tests
Overview
You may operate several diagnostic tests for use in
• troubleshooting the detector.
• verifying the detector electronics and optics.
System not calibrated. The calibration read
from nonvolatile
memory is not valid.
1. Recycle power to the
detector.
2. Perform manual
calibration.
3. Contact Waters
Technical Service.
Communication failure:
Reference A/D
A/D communication test
failed.
1. Recycle power to the
detector.
2. Contact Waters
Technical Service.
Communication failure:
Sample A/D
A/D communication test
failed.
1. Recycle power to the
detector.
2. Contact Waters
Technical Service.
Dark current too low: 0 The dark energy level
equals 0.
1. Recycle power to the
detector.
2. Contact Waters
Technical Service.
Dark current too high:
nnnnnnn
The dark energy level is
above 1000000.
1. Recycle power to the
detector.
2. Contact Waters
Technical Service.
Instrument error messages
Error Message Description Corrective Action