Equipment and Calibration
Equipment history at Twitchell Rice| ALL | | Anemometer || Barometer || Battery Bank || Data Logger || DO Sensor || Gas Analyzer || Heat Flux Plate || Interface || Multiplexer || Net Radiometer || PAR Sensor || Precipitation || Pump || Pyranometer || RH & Temp || Scroll Pump || 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 |
|---|---|---|---|---|---|
| Heat Flux Plate | |||||
| 2009-04-03 | 002211 | HFP01 | Installed | Heat Flux Plate D | Installed with the initial set up of the Twitchell Rice tower. |
| 2012-09-06 | 002211 | HFP01 | Removed | Heat Flux Plate D | Removed from the Twitchell tower for calibration. This was #2 of three SHF plates. |
| 2009-04-03 | 00243 | HFP01SC | Installed | Heat Flux Plate B | Installed at the rice as SHF2 in channel 17 on the multiplexer. It's calibration coefficient is: 62.1 micrV/(W m-2) |
| 2011-10-27 | 00243 | HFP01SC | Removed | Heat Flux Plate B | Joe checked the wires on the SHF plates and found that they were rotting away. Brought back to the lab to fix. |
| 2013-06-07 | 00243 | HFP01SC | Installed | Heat Flux Plate A | Installed to replace the one cut off by a tractor (sn 00244). Installed in AM25T channel 16 (SHF1). |
| 2014-11-16 | 00243 | HFP01SC | Removed | Heat Flux Plate A | SHFP1 was removed from rice since reading INF. Joe will diagnose in lab. |
| 2014-11-25 | 00243 | HFP01SC | Installed | Heat Flux Plate A | Installed in multiplexer on channel 16. The heat flux plate was reading INF, so this needs to be looked at next time—I couldn’t diagnose the problem. |
| 2014-12-10 | 00243 | HFP01SC | Removed | Heat Flux Plate A | Removed from TW and brought back to the lab for troubleshooting |
| 2009-04-03 | 00244 | HFP01SC | Installed | Heat Flux Plate A | Installed with the initial set up of the Twitchell Rice tower. |
| 2011-10-27 | 00244 | HFP01SC | Removed | Heat Flux Plate A | Removed from the field to repair cracking cables in the lab. |
| 2011-11-02 | 00244 | HFP01SC | Installed | Heat Flux Plate A | Installed in the field after harvest and chopping. The cable was replaced due to cracking and the self calibration heater cable was shortened to a pig tail. |
| 2012-05-17 | 00244 | HFP01SC | Removed | Heat Flux Plate A | I found this heat flux plate in the field. It had not been removed with the other ground sensors and got cut off by the tractor. |
| 2009-04-03 | 00246 | HFP01SC | Installed | Heat Flux Plate C | Installed with the initial set up of the Twitchell Rice tower. |
| 2011-10-27 | 00246 | HFP01SC | Removed | Heat Flux Plate C | Removed from the field for repair of cracking cables in the lab. |
| 2011-11-02 | 00246 | HFP01SC | Installed | Heat Flux Plate C | Installed in the field after harvest and chopping. The cable was replaced due to cracking and the self calibration heater cable was shortened to a pig tail. |
| 2015-09-11 | 00246 | HFP01SC | Removed | Heat Flux Plate C | The cable was broken when the plate along with the rest of the tower was moved from the field for harvest. The break is so close to the plate that it might not be repairable. |
| 2015-04-09 | 10809 | HFP01 | Installed | Heat Flux Plate A | Installed at rice as SHF1 in mux channel 16 |
| 2017-04-04 | 10809 | HFP01 | Removed | Heat Flux Plate A | Removed with the decommissioning of the Twitchell Rice site. |
| 2015-04-09 | 10822 | HFP01 | Installed | Heat Flux Plate B | installed at rice as SHF2 in mux channel 17 |
| 2017-04-04 | 10822 | HFP01 | Removed | Heat Flux Plate B | Removed with the decommissioning of the Twitchell Rice site. |
| 2015-09-30 | 6499 | HFP01 | Installed | Heat Flux Plate C | Installed when the tower was returned to the field after harvest to replace the plate that was broken when the tower was removed. |
| 2017-04-04 | 6499 | HFP01 | Removed | Heat Flux Plate C | Removed with the decommissioning of the Twitchell Rice site. |