Ecotech Serinus 44 - Sample Port; Manual Instrument Gain and Offset Adjustments

Serinus 44 User Manual 3.0
Page 98
Procedure
1. Ensure a suitable span source is connected to the Calibration Port.
2. If diluting the gas with a dilution calibrator, set the output concentration to 80% of the
instrument measurement range.
3. Open - Main Menu  Calibration Menu.
4. Select - Cal. Type  Manual - Accept.
5. Select - Cal. Mode  Span - Accept.
6. Let the instrument stabilise, typically 20 minutes.
7. Enter - Span Calibrate NOx - (Enter the span output concentration) - Accept.
8. Select - Cal. Mode  Measure - Accept (To return to sample measure).
5.4.3 Sample Port
Equipment Required
 Span source
Procedure
1. Ensure suitable span source is connected to the Sample Port.
2. If diluting the gas with a dilution calibrator, set the output concentration to 80% of the
instrument measurement range.
3. Open - Main Menu  Calibration Menu.
4. Select - Cal. Type  Manual - Accept.
5. Select - Cal. Mode  Measure - Accept.
6. Let the instrument stabilise, typically 20 minutes.
7. Enter - Span Calibrate NOx - (Enter the span output concentration) - Accept.
8. Disconnect the span source and reconnect the sample line to the Sample Port.
5.4.4 Manual Instrument Gain and Offset Adjustments
CAUTION
Manual adjustment of the Instrument Gain does not take into account the PTF
correction and can lead to an incorrect calibration
Note: If calibrating with a reference cylinder containing NO
2
, ensure that the expected value is based
on the certified NO
X
concentration rather than the certified NO value.
Note: If calibrating with a reference cylinder containing NO
2
, ensure that the expected value is based
on the certified NO
X
concentration rather than the certified NO value.