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Model 9110TH NOx Analyzer Overview of Operating Modes
Teledyne Analytical Instruments 87
4. OVERVIEW OF OPERATING MODES
To assist in navigating the analyzer’s software, a series of menu trees is available for reference in
Appendix A of this manual.
Note Some control buttons on the touch screen do not appear if they are not
applicable to the menu that you’re in, the task that you are performing, the
command you are attempting to send, or to incorrect settings input by the
user. For example, the ENTR button may disappear if you input a setting
that is invalid or out of the allowable range for that parameter, such as
trying to set the 24-hour clock to 25:00:00. Once you adjust the setting to
an allowable value, the ENTR button will re-appear.
The 9110T analyzer software has a variety of operating modes. The most common mode that the
analyzer will be operating in is the SAMPLE mode. In this mode, a continuous read-out of the NO
x
concentrations can be viewed on the front panel and output as an analog voltage from rear panel
terminals.
The second most important operating mode is SETUP mode. This mode is used for
configuring the various sub systems of the analyzer such as for the DAS system, the reporting ranges,
or the serial (RS-232 / RS-485 / Ethernet) communication channels. The SETUP mode is also used for
performing various diagnostic tests during troubleshooting.
Figure 4-1: Front Panel Display
The mode field of the front panel display indicates to the user which operating mode the unit is currently
running.
In addition to SAMPLE and SETUP, other modes the analyzer can be operated in are described in Table
7-1 below.