Rosemount CT4215, Reference Manual

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7 Maintenance
The packaged Leak Detection System is inherently reliable at reducing the requirement for
routine maintenance. This section provides information on the schedule of maintenance
you should perform to ensure the reliable performance of the system.
WARNING!
ELECTRIC SHOCK
For all maintenance inside the lower section of the console, the system must be powered off
using the shutdown procedure detailed in
Chapter 5 . Inside the console there are potentially
dangerous voltages.
7.1 Scheduled maintenance
The maintenance activities and their related frequencies are shown below.
7.2 Clean cell mirrors
Follow the steps below to clean the cell mirrors in the Rosemount
™
CT4215.
CAUTION!
EQUIPMENT DAMAGE
The cell mirrors are an optical device; only clean them when required. Avoid over cleaning the
mirrors. Use only the cleaning parts listed in this document.
If the laser pulse amplitude drops below the laser warning threshold (default 0.4 V), then
the yellow
Maintenance
warning message appears on the HMI ( Figure 7-1 ).
Error Message for Pulse Amplitude below Warning Threshold Figure 7-1:
The system performance is not affected and runs as normal, but consider purging the cell
or prepare to clean the cell mirrors soon.
Maintenance
Reference Manual 33