Teledyne 200AU-NOy

Model 200AU-NOy Option Manual Addendum

Table 4.3 - Span Calibration Procedure

Step

Number Action Comment

1. Press CAL The M200AU enters the calibrate mode and the adaptive

filter is activated. This allows the instrument to respond

rapidly to concentration changes regardless of their

magnitude.

2. Wait 10 min Wait for reading to stabilize at span value.

3. Press SPAN If you change your mind after pressing SPAN, you can

still press EXIT here without spanning the instrument.

4. Press ENTR Pressing ENTR actually changes the calculation

equations and causes the instrument to read the NO and

Ox span concentrations.

5. Press EXIT M200AU returns to sampling. Immediately after

calibration, data is not added to the DAS averages.

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