1.0 T201 AMMONIA ANALYZER
This manual is to be used in conjunction with the T200 NOx Analyzer manual, p/n 06858 supplied with this instrument. It is important that you familiarize yourself with the workings of the NOx analyzer before proceeding with NH3 measurements.
The T201 ammonia analyzer consists of a modified T200 nitrogen oxide analyzer and an M501 NH3 ammonia converter. The analyzer measures the following individual gas concentrations: TNx (NH3 and NOx), NOx (NO and NO2) and NO in the sample gas.
The ammonia concentration is calculated by subtracting the NOX reading from the TNx measurement.
The nitrogen dioxide concentration is calculated by subtracting the NO reading from the NOx measurement.
| The instrument comes in three pneumatic configurations: | |
| The T201 with External Calibrator Option (ECO) is shown in | |
| Figure | |
| The basic system is shown in Figure | |
| The T201 with Zero/Span valves is shown in Figure | |
Note | For a T201 analyzer with Zero/Span option you must connect the umbilical | |
| cord P/N 02255 between the analyzer and the external M501 NH3 converter | |
| assembly. | |
| If the analyzer is purchased without the Zero/Span option then the zero and | |
| span calibration gases must be individually applied to the Sample port. | |
| Remember, the gases must be clean/dry and supplied at ambient pressure. | |
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| CAUTION |
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| Do not pressurize the Sample/Span/Zero port above ambient |
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07271B DCN6646 | 7 |