Equipment and Calibration
Equipment history at DWR Corn| ALL | | Anemometer || Barometer || Battery Bank || Data Logger || Gas Analyzer || Heat Flux Plate || Interface || Multiplexer || Net Radiometer || PAR Sensor || Precipitation || RH & Temp || Soil Moisture Probe || Solar Controller || Solar Panel || Water Level |
SELECT a.recno, a.eh_date, a.eh_loc1, a.eh_loc2, IF(a.eh_loc2=:loc, a.eh_locref2, a.eh_locref1) AS ref, a.eh_locref2, a.eh_title, a.eh_notes, a.eh_id, b.serialno, b.equip, b.modelno FROM equiphist a INNER JOIN equiplist b ON a.eh_id=b.recno WHERE (a.eh_loc1=:loc1 OR a.eh_loc2=:loc2) AND b.equip=:eq ORDER BY b.serialno, a.eh_date
| Date | Serial No. | Model | Action | Ref | Notes |
|---|---|---|---|---|---|
| Gas Analyzer | |||||
| 2012-08-02 | 0042 | LI-7500A | Installed | Installed on the DWR Corn Tower to replace sn 0065 for calibration and upgrade. | |
| 2013-02-04 | 0042 | LI-7500A | Calibration | Lab | Last calibration: 2012-08-02 AGC=52 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=101.2kPa, Tair=19.9C, Tdew=6.6C dry air at 1500psi, CO2 421.22 at 1700 Tdewspan=15.04 CO2 zero 0.9513 -> 0.9508 Offset: -1.84ppm CO2 span 1.0044 -> 1.0084 Offset: 1.57ppm H2O zero 0.8472 -> 0.8575 Offset: 0.54ppm H2O span 0.9696 -> 0.9872 Offset: 0.96ppm Notes: by Siyan |
| 2013-01-30 | 0042 | LI-7500A | Removed | Removed from the DRW-Corn tower for calibration. Replaced with sn 0073 | |
| 2013-02-04 | 0042 | LI-7500A | Calibration | Lab | Last calibration: 2012-08-02 AGC=52 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=101.2kPa, Tair=19.9C, Tdew=6.6C dry air at 1500psi, CO2 421.22 at 1700 Tdewspan=15.04 CO2 zero 0.9513 -> 0.9508 Offset: -1.84ppm CO2 span 1.0044 -> 1.0084 Offset: 1.57ppm H2O zero 0.8472 -> 0.8575 Offset: 0.54ppm H2O span 0.9696 -> 0.9872 Offset: 0.96ppm Notes: by Siyan |
| 2013-08-21 | 0042 | LI-7500A | Installed | Installed on the Corn / Construction tower to replace sn 0976 for calibration | |
| 2014-02-28 | 0042 | LI-7500A | Calibration | Lab | Last calibration: 2013-08-20 AGC=52 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=98.58kPa, Tair=19.15C, Tdew=8.52C Zero air at 1400psi, God CO2 421.22 at 1500 Tdewspan=15.17 CO2 zero 0.9503 -> 0.9506 Offset: 0.88ppm CO2 span 1 -> 1.0078 Offset: -4.12ppm H2O zero 0.8499 -> 0.8506 Offset: 3.8ppm H2O span 0.9929 -> 0.9853 Offset: 0.18ppm Notes: H2O not zeroed last time - April 23, 2013 last zero |
| 2013-11-25 | 0042 | LI-7500A | Removed | This sensor was removed for calibration. It was replaced by sn 0073 | |
| 2014-02-28 | 0042 | LI-7500A | Calibration | Lab | Last calibration: 2013-08-20 AGC=52 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=98.58kPa, Tair=19.15C, Tdew=8.52C Zero air at 1400psi, God CO2 421.22 at 1500 Tdewspan=15.17 CO2 zero 0.9503 -> 0.9506 Offset: 0.88ppm CO2 span 1 -> 1.0078 Offset: -4.12ppm H2O zero 0.8499 -> 0.8506 Offset: 3.8ppm H2O span 0.9929 -> 0.9853 Offset: 0.18ppm Notes: H2O not zeroed last time - April 23, 2013 last zero |
| 2012-05-21 | 0065 | LI-7500A | Installed | Installed on the DWR Corn tower. | |
| 2012-08-06 | 0065 | LI-7500A | Calibration | Lab | Last calibration: 2012-05-18 AGC=65 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=99.63kPa, Tair=22.07C, Tdew=8.90C Zero air at 1700psi, CO2 in air 436.53 at 1450 Tdewspan=15.08 CO2 zero 0.8741 -> 0.8740 Offset: -0.36ppm CO2 span 0.9958 -> 0.9973 Offset: -0.93ppm H2O zero 0.6415 -> 0.6387 Offset: -19.3ppm H2O span 1.0009 -> 1.0898 Offset: -1.76ppm Notes: Calibration in preparation to be upgraded to a LI-7500A head. |
| 2012-08-02 | 0065 | LI-7500A | Removed | Removed from the DWR Corn Tower for calibration and upgrade to LI-7500A. Replaced by sn 0042. | |
| 2012-08-06 | 0065 | LI-7500A | Calibration | Lab | Last calibration: 2012-05-18 AGC=65 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=99.63kPa, Tair=22.07C, Tdew=8.90C Zero air at 1700psi, CO2 in air 436.53 at 1450 Tdewspan=15.08 CO2 zero 0.8741 -> 0.8740 Offset: -0.36ppm CO2 span 0.9958 -> 0.9973 Offset: -0.93ppm H2O zero 0.6415 -> 0.6387 Offset: -19.3ppm H2O span 1.0009 -> 1.0898 Offset: -1.76ppm Notes: Calibration in preparation to be upgraded to a LI-7500A head. |
| 2013-01-30 | 0073 | LI-7500A | Installed | Installed on the DWR-Corn tower to replace sn 0042 for calibration | |
| 2013-07-09 | 0073 | LI-7500A | Calibration | Lab | Last calibration: 2013-01-29 AGC=59 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.6kPa, Tair=22.18C, Tdew=12.22C Zero Air at 1650psi, God CO2 421.22 at 1600 Tdewspan=15.19 CO2 zero 0.9581 -> 0.9576 Offset: -1.50ppm CO2 span 1.0028 -> 1.0039 Offset: -0.47ppm H2O zero 0.7332 -> 0.7323 Offset: -6.0ppm H2O span 1.0186 -> 1.0259 Offset: -0.17ppm Notes: |
| 2013-04-26 | 0073 | LI-7500A | Removed | Removed from the DWR-Corn tower for calibration. Replaced by sn 0976 | |
| 2013-07-09 | 0073 | LI-7500A | Calibration | Lab | Last calibration: 2013-01-29 AGC=59 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.6kPa, Tair=22.18C, Tdew=12.22C Zero Air at 1650psi, God CO2 421.22 at 1600 Tdewspan=15.19 CO2 zero 0.9581 -> 0.9576 Offset: -1.50ppm CO2 span 1.0028 -> 1.0039 Offset: -0.47ppm H2O zero 0.7332 -> 0.7323 Offset: -6.0ppm H2O span 1.0186 -> 1.0259 Offset: -0.17ppm Notes: |
| 2013-04-26 | 0976 | LI-7500 | Installed | Installed on the DWR-Corn tower to replace sn 0073 for calibration | |
| 2013-11-06 | 0976 | LI-7500 | Calibration | Lab | Last calibration: 2013-04-26 AGC=58 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=101.17kPa, Tair=23.37C, Tdew=3.35C Zero Air at 1500psi, God CO2 421.22 at 1600 Tdewspan=15.16 CO2 zero 0.859 -> 0.8597 Offset: 2.50ppm CO2 span 1.0096 -> 1.0073 Offset: 1.23ppm H2O zero 0.6313 -> 0.6279 Offset: -22.3ppm H2O span 0.9941 -> 1.0135 Offset: 0.43ppm Notes: |
| 2013-08-21 | 0976 | LI-7500 | Removed | Removed from the Corn / Construction tower for calibration. Replaced with sn 0042 | |
| 2013-11-06 | 0976 | LI-7500 | Calibration | Lab | Last calibration: 2013-04-26 AGC=58 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=101.17kPa, Tair=23.37C, Tdew=3.35C Zero Air at 1500psi, God CO2 421.22 at 1600 Tdewspan=15.16 CO2 zero 0.859 -> 0.8597 Offset: 2.50ppm CO2 span 1.0096 -> 1.0073 Offset: 1.23ppm H2O zero 0.6313 -> 0.6279 Offset: -22.3ppm H2O span 0.9941 -> 1.0135 Offset: 0.43ppm Notes: |
| 2013-09-05 | TG1-0203 | LI-7700 | Installed | Gas Analyzer CH4 | Installed on the Corn / Construction tower. This sensor was added to the system by a direct connection to the CR1000 by Ethernet. The CR1000 program was changed to read the Ethernet signal. The 7700 was set to output at 40Hz to try and minimize the loss of messages due to clock drift. |
| 2013-11-25 | TG1-0203 | LI-7700 | Moved | Gas Analyzer CH4 | The DWR Corn / Construction tower was decommissioned and rechristened at its new permanent location at the Twitchell East End Wetland |