Specifications

S
TARTUP AND
O
PERATION
748410-A
August 1999
25
Chemiluminescense Detector Analyzer Module
Rosemount Analytical NGA 2000
3
3.8 R
OUTINE
O
PERATION
The CLD Analyzer Module is designed to continuously analyze the sample stream.
Normally, it is never powered off except for servicing or for a prolonged shutdown.
Maximum permissible interval between calibrations depends on the analytical accuracy
required, and therefore cannot be specified. Initially, the instrument should be calibrated at
least once every eight hours. This practice should continue until experience indicates that
some other interval is more appropriate.
The Analyzer Module will not allow the user to increase the upper limit of a range beyond
the maximum range software setting. To change the Maximum Range value, select the
following from the Main Menu: Technical Configuration Menu, Service Menu, Manufacturing
Data, and Analyzer Module Data. Select Maximum Range, and use the arrow keys to scroll
the indicated value. The same applies for the Minimum Range value.