Teledyne T200 User Manual page 162

o
ATTENTION
NO à NO C
2
The efficiency at which the NO
the accuracy of the NO
Converter Efficiency (CE) gain factor that is multiplied by the NO
to calculate the final concentrations for each. This gain factor is stored in the analyzer's
memory.
The default setting for the NO
in the NO
NO.
To ensure accurate operation of the analyzer, it is important to check the NO
efficiency (CE) periodically. See Section 4.5 for checking and calculating the CE.
For the analyzer to function correctly, the converter efficiency must be greater
•
than 0.9600 (96% conversion efficiency) as per US-EPA requirements.
If the converter's efficiency is below this limit, the NO
•
replaced.
The current converter efficiency level is also recorded along with the calibration
•
data in the DAS for documentation and performance analysis (Section 2.5.1).
160 Teledyne API T200 NO/NO
To test the thermocouple at room temperature, heat up the converter can (e.g., with
a heat gun) and see if the voltage across the thermocouple leads changes.
If the thermocouple is working properly, the electronic circuit is broken.
•
COULD DAMAGE INSTRUMENT AND VOID WARRANTY
If the thermocouple is broken, do NOT replace the thermocouple
without first consulting the factory; using the wrong Type could
cause permanent damage to the instrument. The Type K
thermocouple has a red and a yellow wire. If in doubt, consult the
factory.
F
ONVERTER AILURE
à NO converter changes NO
2
, NO and NO
x
converter efficiency is 1.0000. Over time, the molybdenum
2
à NO converter oxidizes and it becomes less efficient at converting NO
2
/NO Analyzer with NumaView™ Software
2 x
measurements. The analyzer's firmware includes a
2
converter should be
2
into NO directly affects
2
and NO measurements
2 X
into
2
conversion
2
083730200A DCN7962