Teledyne Sample Mode, Test Functions, Model 9110T NOx Analyzer Overview of Operating Modes

MODE

DIAG

LO CAL A

LO CAL R

M-P CAL

SAMPLE

SAMPLE A

SETUP X.#2

SPAN CAL A1

SPAN CAL M1

SPAN CAL R1

ZERO CAL A1

ZERO CAL M1

ZERO CAL R1

Model 9110T NOx Analyzer Overview of Operating Modes

Table 4-1: Analyzer Operating Modes

EXPLANATION

One of the analyzer’s diagnostic modes is active.

Unit is performing LOW SPAN (midpoint) calibration initiated automatically by the analyzer’s AUTOCAL feature

Unit is performing LOW SPAN (midpoint) calibration initiated remotely through the COM ports or digital control inputs.

This is the basic calibration mode of the instrument and is activated by pressing the CAL button. Sampling normally, flashing text indicates adaptive filter is on.

Indicates that unit is in SAMPLE mode and AUTOCAL feature is activated.

SETUP mode is being used to configure the analyzer. The gas measurement will continue during setup.

Unit is performing SPAN calibration initiated automatically by the analyzer’s AUTOCAL feature Unit is performing SPAN calibration initiated manually by the user.

Unit is performing SPAN calibration initiated remotely through the COM ports or digital control inputs.

Unit is performing ZERO calibration procedure initiated automatically by the AUTOCAL feature Unit is performing ZERO calibration procedure initiated manually by the user.

Unit is performing ZERO calibration procedure initiated remotely through the COM ports or digital control inputs.

1Only Appears on units with Z/S valve or IZS options.

2The revision of the analyzer firmware is displayed following the word SETUP, e.g., SETUP G.3.

4.1. SAMPLE MODE

This is the analyzer’s standard operating mode. In this mode, the instrument is a calculating NOx, NO and NO2 concentrations. These values are displayed in the CONC field of the analyzer's front panel display. While the instrument is in SAMPLE mode, this field provides a readout of all the gas concentrations being measured by the 9110T: NOx, NO and NO2.

When the analyzer is in sample mode the PARAM field will display warning messages and test functions that give the user information about the operational status of the analyzer.

4.1.1. TEST FUNCTIONS

A variety of TEST functions are available for viewing at the front panel whenever the analyzer is at the MAIN MENU. These functions provide information about the various functional parameters related to the analyzer’s operation and its measurement of gas concentrations. This information is particularly when troubleshooting a performance problem with the 9110T (see Section 13). Figure 4-2 will display the Test Functions on the front panel screen. Table 4-2 lists the available TEST functions.

Table 4-2: Test Functions Defined

DISPLAY	PARAMETER	UNITS	DESCRIPTION
		PPB,	The Full Scale limit at which the reporting range of the analyzer’s ANALOG
RANGE	RANGE	PPM,	OUTPUTS is currently set.
		UGM	THIS IS NOT the Physical Range of the instrument. See Section 5.4.1 for
		&	more information.

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