OZONE : Ozone dryer installed |
22-JUL-17 |
WIND_DIRECTION : Sensor unwired. |
01-JAN-16 |
WINDSPEED_SCALAR : Sensor unwired. |
01-JAN-16 |
WINDSPEED : Sensor unwired. |
01-JAN-16 |
SIGMA_THETA : Sensor unwired. |
01-JAN-16 |
TEMP2 : Sensor unwired. |
01-JAN-16 |
RELATIVE_HUMIDITY : Sensor unwired. |
01-JAN-16 |
SHELTER_TEMPERATURE : A/C and Heat logger control installed. |
01-JAN-16 |
TEMPERATURE : 9m temperature measurement with passive aspiration installed. |
01-JAN-16 |
OZONE : New certification range for site transfer standard |
11-JUL-14 |
OZONE : Knock-out bottle removed. |
28-JAN-14 |
OZONE : Foam insulation added to sample line. |
28-JAN-14 |
OZONE : ZSP order changed to SPZ. |
28-JAN-14 |
OZONE : 10 ft. exhaust tubing added to both analyzers. |
06-JAN-12 |
OZONE : Site analyzer with replacement pressure transducer installed. |
06-JAN-12 |
OZONE : Ozone sample line filter removed from inside the shelter. |
01-JUL-11 |
OZONE : Ozone sample line filter removed from inside the shelter. |
12-APR-11 |
OZONE : 40CFR Part 58 ozone site upgrade completed using Level 2 site transfer standard. |
23-JAN-11 |
OZONE : Ozone tubing changed from 3/8 inch to 1/4 inch. |
23-JAN-11 |
OZONE : 40CFR Part 58 ozone site installed using independent site transfer standard. |
14-JUL-10 |
OZONE : Prototype 40CFR Part 58 ozone site installed using ozone generator as site transfer standard. |
15-OCT-09 |
DATALOGGER : CR3000 datalogger installed. Wiring standardized. |
05-AUG-08 |