Teledyne 9110T instruction manual Setup  Rnge  DIL Using the Optional Dilution Ratio Feature

Model 9110T NOx Analyzer Setup Menu

5.4.3.4. SETUP  RNGE  UNIT: Setting the Reporting Range Units of Measure

The 9110T can display and report concentrations in ppb, ppm, ug/m3, mg/m3 units. Changing units affects all of the COMM port values, and all of the display values for all reporting ranges. To change the units of measure press:

IMPORTANTIMPACT ON READINGS OR DATA

Concentrations displayed in mg/m3 and ug/m3 use 0°C@ 760 mmHg for

Standard Temperature and Pressure (STP).

Consult your local regulations for the STP used by your agency. (Example: US EPA uses 25°C as the reference temperature).

Once the Units of Measurement have been changed from volumetric (ppb or ppm) to mass units (ug/m3 or mg/m3) the analyzer MUST be recalibrated, as the “expected span values” previously in effect will no longer be valid.

Simply entering new expected span values without running the entire calibration routine is not sufficient. This will also counteract any discrepancies between STP definitions.

5.4.3.5. SETUP  RNGE  DIL: Using the Optional Dilution Ratio Feature

The dilution ratio feature is a software utility option designed for applications where the sample gas is diluted before being analyzed by the 9110T. Typically this occurs in continuous emission monitoring (CEM) applications where the quality of gas in a smoke stack is being tested and the sampling method

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