Teledyne 9110T instruction manual Teledyne Analytical Instruments 105

Model 9110TH NOx Analyzer Setup Menu

used to remove the gas from the stack dilutes the gas. Once the degree of dilution is known, this feature allows the user to add an appropriate scaling factor to the analyzer’s NO, NO2 and NOx concentration calculations so that the measurement range and concentration values displayed on the instrument’s front panel display and reported via the instruments various outputs reflect the undiluted values.

Using the Dilution Ratio option is a 4-step process:

1.Select the appropriate units of measure (see Section 5.4.3.4).

2.Select the reporting range mode and set the reporting range upper limit (see Section 5.4.2).

∙Ensure that the upper span limit entered for the reporting range is the maximum expected concentration of the UNDILUTED gas.

3.Set the dilution factor as a gain (e.g., a value of 20 means 20 parts diluent and 1 part of sample gas):

1.Calibrate the analyzer.

∙Ensure that the calibration span gas is either supplied through the same dilution system as the sample gas or has an appropriately lower actual concentration.

EXAMPLE: If the reporting range limit is set for 100 ppm and the dilution ratio of the sample gas is 20 gain, either:

Teledyne Analytical Instruments 105