Thermo Scientific Sarasota SG901, User Manual

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Validation
Validation with an Injection Sample
4-2
Sarasota SG901 User Guide Thermo Fisher Scientific
Figure 4–1. System validation flow diagram
Follow these steps to validate the system using an injection sample.
1. Close valves 1 and 2, and open valve 4.
2. Invert the validation gas sample cylinder several times to ensure a good
mix.
3. Connect the gas cylinder to the validation gas input via a pressure
regulator set to the same pressure as the Sarasota SG901 regulator.
4. Allow the sample to flow at approximately 5 L/min until the reading
from the density converter is stable. Note the SG or MW reading, and
compare it to the certified SG or MW. The error between the system
and the certified value should be within the sum of the uncertainties of
the validation gas and the Sarasota SG901. If the error is unacceptable,
go to Chapter 7 for troubleshooting.
5. After validation, close the validation cylinder valve and valve 3. Open
valves 2 and 1.
Validation with
an Injection
Sample