Ecotech Acoem Serinus 30 - Sample Port; Manual Instrument Gain and Offset Adjustments; Figure 119 - Span Calibration Set-Up - 2

Calibration
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5.5.2 Sample Port
Equipment Required
• Span source
Procedure
1. Refer to Figure 119. Ensure suitable span source is connected to the Sample Port.
Figure 119 – Span Calibration Set-up - 2
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 15 minutes.
7. Enter - Span Calibrate CO - (Enter the span output concentration) - Accept.
8. Disconnect the span source and reconnect the sample line to the Sample Port.
5.5.3 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
At times it may be desirable to manually adjust the instrument’s gain and offset. Typically this option
is only used when an instrument calibration has been corrupted and the user wishes to reset the
instrument response factors prior to performing a new calibration.
To manually adjust the instrument follow the below procedure:
1. Open - Main Menu → Service Menu → Calculation Factors Menu.
2. Edit - Instrument Gain - (Adjust as required, 1 is the default) - Accept.
3. Edit - Zero Offset CO - (Adjust as required, 0 is the default) - Accept.