Thermo Scientific Thermo Scientific Vanquish VC-D40, Operating Manual

Page: 110 / 174

7 • Maintenance and Service
Page 110 Variable Wavelength Detectors (VC-D40, VF-D40)
Operating Manual
11. Mind the routing of the lamp cables.
Position the lamp cables as indicated in the figure above to prevent
the cable from being pinched under the lamp house cover.
12. Reinstall the lamp house cover and fasten the screws on the lamp
house cover.
13. Turn on the device with its main power switch.
14. After replacing the lamp, increased noise and strong baseline
fluctuations may occur. Before beginning an analysis or performing a
wavelength validation, allow the new lamp to run until the noise is
reduced and the baseline is stable which typically takes 24 hours.
15. Perform a wavelength validation (see Performing a Wavelength
Validation and Calibration ( } page 119) ).
TIP
The lamp age counter is automatically reset to the value stored on the ID
chip of the lamp.
See also
2 Performing a Wavelength Validation and Calibration ( } page 119)
7.5.2 Replacing the VIS Lamp (Tungsten Lamp)
When
• The lamp is defective
• After a defined amount of operating hours of the lamp as a
preventive measure
• The lamp intensity is too low for demanding applications
• The lamp intensity fluctuates causing artifacts in the baseline
Parts required
VIS lamp
Preparations
1. Turn off the VIS lamp.
2. Turn off the device.