| Date: |
2017-05-03 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Upgrade |
| Notes: |
Upgraded to 7500A with the 7500-600 LI-7500 Head Upgrade kit from Licor. I put in new bottom assembly and greased o-ring, screws and greased o-rings, and two chemical bottles. I also adjusted the potentiometer until the waveform displayed about 15,000 counts for the minimum and 55,000 counts for the maximum(Diagnostics icon > Waveform tab). After the upgrade, I attached this sensor to a LI-7550 Analyzer Interface Unit and manually input the CO2 coefficients (A, B, C, D, E, Z, XS) and H2O coefficients (A, B, C, ZX, S). I also updated the Signal Strength coefficients (B = 1.6, C = 3.2) and reset the signal strength (Calibration icon > Signal Strength tab > Reset Signal Strength). |
| Entered by: |
Daphne Szutu |
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