118 1100 Series DAD and MWD User Manual
8Maintenance
Overview of Maintenance
The following pages describe maintenance (simple repairs) of the detector that
can be carried out without opening the main cover.
Table 20 Overview of Maintenance
Procedure Typical Frequency Notes
Deuterium lamp or
tungsten lamp
exchange
If noise and/or drift exceeds your application limits or
lamp does not ignite.
An intensity test should be performed
after replacement.
Flow cell exchange If application requires a different flow cell type. A holmium or wavelength calibration
test should be performed after
replacement.
Flow cell parts
Cleaning or exchange
If leaking or if intensity drops due to contaminated flow
cell windows.
A pressure tightness test should be
done after repair.
Holmium oxide filter
Cleaning or exchange
If contaminated. A holmium or wavelength calibration
test should be performed after
replacement.
Leak sensor drying If leak has occurred. Check for leaks.
Leak handling System
replacement
If broken or corroded. Check for leaks.
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