Emerson Rosemount CT4400, Reference Manual

Page: 33 / 106

4 Operating the analyzer
4.1 Introduction
This chapter describes the controls, displays, and indicators on the Rosemount CT4400
and how to use the display controller located on the front panel of the analyzer.
NOTICE
The gases shown in the screenshots and the measurements may be different from those
shown in your particular analyzer. They indicate the functionality of the software, which is
the same regardless of the gases or gas concentrations being measured.
4.2 Normal operation
The analyzer is designed for long term continuous operation, and therefore its normal
state is to be switched on and performing gas measurements. The analyzer is usually only
switched off for maintenance. The shutdown procedure used to switch off the analyzer is
described in
Shutdown procedure .
Provided that the Start-up procedure has been followed, the analyzer does not require any
human intervention during normal operation other than occasional calibration checks as
described in
Gas calibration .
During normal operation, either the Gas Sensor Main screen ( Figure 4-1 ) or the Pressure and
Temperature screen ( Figure 4-2 ) is shown on the display controller. To toggle between
these two screens, press .
Figure 4-1: Gas Sensor Main Screen
Reference Manual Operating the analyzer
00809-0100-4244 January 2020
Reference Manual 33