| Date: |
2018-07-16 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
Elke Eichelmann & Katrina Cone
The 6400 had not been zeroed and spanned for a while. We checked the zero with the chemicals and they were very off, so we set the zero and the span using cal gas and dewpoint generator.
Then I zeroed and spanned:
Zero:
Chemicals: CO2_S: 34.0 CO2_R: 25.4 H2O_S: 13.7 H2O_R: 14.1
Cal Gas (zero air):
Before: CO2_S:41.0 CO2_R: 24.3 H2O_S: 3.5 H2O_R: 2.3
After: *All fluctuating around zero.
Span with 408.97ppm cal gas:
Before: CO2_R: 399.9 CO2_S: 397.1
After: *Fluctuating around 409
Span with 16.0C dew point:
Before: H2O_R: 14.69C H2O_S:13.23C
After: H2O_R: 16.01C H2O_S: 15.99C
**Note: we had to override the maximum slope parameter for the H2O_S to be able to set the slope above 1.100 and to set the correct dewpoint. 'Shift' + 'J' will allow you to override the maximum slope. |
| Entered by: |
Katrina Cone |
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