Single Gas Analyzer (SGA)
Operations Manual
Super Systems Inc.
Page 18 of 44
Page 18 of 51
7.
Let the unit output what it has set for the zero measurement, and note the reading on your
attached measuring device.
8.
Tap “Measured value (mA)” and tap the “Edit mA” button.
9.
Enter the measured value and tap “OK.”
10.
Then, tap “Run Cal” and tap the “Run Cal” button.
Span Calibration
To calibrate the span:
1.
Use the “Toggle Zero/Span” button to select “Span.”
2.
Tap to highlight “Prep for Cal” and tap the “Prep for Cal” button.
3.
Let the unit output what it has set for the span measurement, and note the reading on
your attached measuring device.
4.
Tap “Measured value (mA)” and tap the “Edit mA” button.
5.
Enter the measured value and tap “OK.”
6.
Then, tap “Run Cal” and tap the “Run Cal” button.
Sensor Calibration (Menu Option)
BEFORE YOU BEGIN:
Never perform a span calibration without first performing a zero calibration.
The Zero calibration should be performed with a gas that is not measured by the SGA. Ideally
this would be pure Nitrogen or Argon.
The concentration of the Span calibration gas should closely resemble the gas that is being
measured.
NOTE: Since the accuracy of the calibration gas directly influences the resulting accuracy of the
instrument, the highest possible accuracy grade should be obtained. Some gas suppliers refer
to this as a “Certified Primary Standard”. The high degree of accuracy is not required to obtain
nominal values that exactly match the values shown above. The accuracy is required to know
the exact composition of the gas in the cylinder. The actual composition will be shown on the
bottle when it is delivered.
When flowing calibration gas into the analyzer, turn the pump off. The amount of flow from the
gas cylinder should be approximately 1.5 SCFH at no pressure. The gas cylinders will be under
high pressure, so it is recommended that a two stage regulator with a low pressure secondary
stage be used. It is good practice to begin the flow of gas before attaching the calibration gas to
the instrument. This will prevent any high pressure bursts from entering the instrument.
Calibration gases can be obtained from Super Systems, however they can also be obtained from
any supplier of custom gases.
Содержание Single Gas Analyzer for H2
Страница 6: ...Single Gas Analyzer SGA Operations Manual Super Systems Inc Page 6 of 44 Mechanical Diagrams...
Страница 43: ...Single Gas Analyzer SGA Operations Manual Super Systems Inc Page 43 of 44 Appendix A Electrical Diagrams...
Страница 44: ...Single Gas Analyzer SGA Operations Manual Super Systems Inc Page 44 of 44...