OZONE : Ozone dryer installed |
17-AUG-17 |
SHELTER_TEMPERATURE : A/C and Heat logger control installed. |
03-AUG-15 |
RELATIVE_HUMIDITY : Sensor unwired. |
23-MAY-14 |
OZONE : New certification range for site transfer standard |
06-MAY-14 |
OZONE : Knock-out bottle removed. |
05-FEB-14 |
OZONE : ZSP order changed to SPZ. |
05-FEB-14 |
OZONE : Foam insulation added to sample line. |
05-FEB-14 |
WINDSPEED_SCALAR : Sensor unwired. |
23-MAY-13 |
TEMPERATURE : 9m temperature measurement with passive aspiration installed. |
23-MAY-13 |
SIGMA_THETA : Sensor unwired. |
23-MAY-13 |
WINDSPEED : Sensor unwired. |
23-MAY-13 |
WIND_DIRECTION : Sensor unwired. |
23-MAY-13 |
TEMP2 : Sensor unwired. |
23-MAY-13 |
OZONE : Replacement pressure transducer installed in site analyzer. |
04-FEB-12 |
OZONE : 10 ft. exhaust tubing added to both analyzers. |
04-FEB-12 |
OZONE : Ozone sample line filter removed from inside the shelter. |
14-JUN-11 |
OZONE : 40CFR Part 58 ozone site upgrade completed using Level 2 site transfer standard. |
12-FEB-11 |
OZONE : Ozone tubing changed from 3/8 inch to 1/4 inch. |
12-FEB-11 |
OZONE : 40CFR Part 58 ozone site installed using independent site transfer standard. |
13-JUL-10 |
OZONE : Prototype 40CFR Part 58 ozone site installed using ozone generator as site transfer standard. |
03-SEP-09 |
DATALOGGER : CR3000 datalogger installed. Wiring standardized. |
08-APR-08 |