SSI Single Gas Analyzer for H2, Руководство по эксплуатации

Страница: 17 / 44

Single Gas Analyzer (SGA)
Operations Manual
Super Systems Inc. Page 17 of 44 Page 17 of 51
Output Calibration (Menu Option)
Overview
The Output Calibration screen allows the user to perform a zero/span calibration. The SGA is
equipped with two analog outputs. These outputs require calibration to ensure that the mA
signal corresponds to a given output value (zero value for the lowest value and span value for
the highest value). SSi recommends output calibration be performed on each output at least
once per year, or as needed.
To calibrate each output, first make sure that you have a multimeter (or other appropriate
testing instrument) available. Then follow these steps.
Zero Calibration
To calibrate the zero/span range for an output:
1.
Attach a measuring device to the selected output.
2. Connect the gas to the “Cal Gas Inlet” on the side of the SGA enclosure. It is recommended
to let everything (gas and SGA) sit for approximately thirty minutes to allow the temperature
to achieve equilibrium.
3. Select “Output Calibration” form the Main Menu.
4. Once this is done, tap to highlight “Zero/Span,” then tap the “Toggle Zero/Span” button to
select “Zero.” “Zero” will now be displayed in the Zero/Span row.
5. To select the desired output, tap to highlight “Output#,” then tap the “Toggle Output
Number” button to select the appropriate setting. The current value will be displayed in the
“Output#” row.
6. Tap to highlight “Prep for Cal” and tap the “Prep for Cal” button.