Model NGA 2000 TO2
Instruction Manual
Main Menu
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Analyzer and I/O, expert controls and setup…
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Analyzer module controls… (Or Analyzer module setup…)
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TO2 | 37.50 ppm |
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Calibration…
Alarms…
Ranges…
Linearization…
Measurement display configuration…
Concentration measurement…
Flow measurement…
Temperature measurement…
Measure | Status… | Back… |
Move the cursor to the “Calibration…” line and press the ↵ key. The “Calibration” menu will display as shown below.
TO2 |
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| Gas scale factor… |
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| Reset calibration! |
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| Calibrate to span gas! |
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| Span gas: |
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| 90.0 ppm |
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| Measure |
| Status… |
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| Back… |
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Move the cursor to the “Gas scale factor…” line and press the ↵ key. The “Gas Scale Factor 1/0” menu will display as shown on the next page.
| TO2 | 37.50 ppm |
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| Air background gas concentration: |
| 0.0% |
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| C2H4 background gas concentration: |
| 0.0% |
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| CO background gas concentration: |
| 0.0% |
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| CH4 background gas concentration: |
| 0.0% |
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| N2 background gas concentration: |
| 100% |
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| He background gas concentration: |
| 0.0% |
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| H2 background gas concentration: |
| 0.0% |
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| NH3 background gas concentration: |
| 0.0% |
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| C2H6 background gas concentration: |
| 0.0% |
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| C3H6 background gas concentration: |
| 0.0% |
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| Measure |
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| Back… |
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Enter the volumetric percentages of each component present in the sample gas.
Move the cursor to the desired line and press the ↵ key. Then press the ↑ and ↓ keys to adjust the value and the ← and → keys to select the digit. Press the ↵ key again to save the value.
TO2 |
| 37.50 ppm |
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| C4H10 background gas concentration: | 0.0% |
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| C6H14 background gas concentration: | 0.0% |
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| Other background gas concentration: | 0.0% |
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| Other background gas factor: | 100.0% |
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| Compute new adjusted gas scale factor! |
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| Adjusted gas scale factor: | 1.00000 |
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| Scale factor computation result: |
| OK |
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| Measure |
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| Back… |
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To view and adjust additional background gas components, press the F5 key to display the second menu.
After all the background gas concentrations have been entered, move the cursor to the “Compute new adjusted gas scale factor!” command and press the ↵ key. The analyzer will automatically calculate the new gas scale factor and display the result.
Figure 3-16. Calibration – Gas Scale Factor
Rosemount Analytical Inc. A Division of Emerson Process Management | Operation |
