| Date: |
2011-01-24 |
| From: |
Lab - none |
| To: |
Lab - none |
| Title: |
Calibration |
| Notes: |
On January 24, 2011, Jaclyn Hatala calibrated 2 CS511 Sensorex dissolved oxygen sensors in the lab.
1. I filled the caps with water, to make sure that the membrane was secure and not leaking.
2. I emptied the caps and filled them with the electrolyte solution provided.
3. I attached the two sensors to a datalogger with a multiplier of 1.0, and recorded data every 10 seconds
for 15 minutes with the sensors out of water
4. I calculated the multiplier by the equation: M=P/R provided in the manual, where P is the given atmospheric
O2 concentration given the room temperature and pressure (in this case for 24C and sea level, 8.09ppm)
5. The sensor was labeled DO_2: coef 0.2394ppm/mV. The datalogger output and
calculations are in DOcal_24Jan2011.xlsx. |
| Entered by: |
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