Equipment and Calibration
Equipment history at Sherman Barn| ALL | | Anemometer || Camera || Data Logger || Forced Diffusion || Gas Analyzer || Heat Flux Plate || Interface || Multiplexer || Narrow Band || Net Radiometer || PAR Sensor || Precipitation || RH & Temp || Soil Moisture Probe || 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 | |||||
| 2018-07-11 | 0041 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed at Sherman Barn on the scaffolding frame in the southwest corner of the cow fence. This is the initial set up of the site. |
| 2019-01-02 | 0041 | LI-7500A | Calibration | Lab | Last calibration: 2018-07-03 AGC=98 SDM=0 DAC1=0 DAC2=0 Ambient P=101.2kPa, Tair=20.1C, Tdew=3.7C Zero Air at 1400psi, AMP Air 408.97 at 875 Tdewspan=16.00 CO2 zero 0.9966 -> .9953 Offset: -4.19ppm CO2 span 1.0173 -> 1.0194 Offset: -1.25ppm H2O zero 0.8192 -> .8248 Offset: 34.0ppm H2O span 1.0285 -> 1.0312 Offset: -.07ppm Notes: H2O zero offset larger than I expected, but H2O span seems fine. |
| 2018-10-18 | 0041 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from Sherman Barn for calibration. Replaced by sn 75H-2669. |
| 2019-01-02 | 0041 | LI-7500A | Calibration | Lab | Last calibration: 2018-07-03 AGC=98 SDM=0 DAC1=0 DAC2=0 Ambient P=101.2kPa, Tair=20.1C, Tdew=3.7C Zero Air at 1400psi, AMP Air 408.97 at 875 Tdewspan=16.00 CO2 zero 0.9966 -> .9953 Offset: -4.19ppm CO2 span 1.0173 -> 1.0194 Offset: -1.25ppm H2O zero 0.8192 -> .8248 Offset: 34.0ppm H2O span 1.0285 -> 1.0312 Offset: -.07ppm Notes: H2O zero offset larger than I expected, but H2O span seems fine. |
| 2019-01-31 | 75H-2180 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed at SB to replace sn 75H-2669, which was brought back to the lab for calibration. |
| 2019-04-23 | 75H-2180 | LI-7500A | Calibration | Lab | Last calibration: 2019-01-25 AGC=102 SDM= DAC1= DAC2= Ambient P=100.6kPa, Tair=24.7C, Tdew=10.9C Zero Air at 1100psi, AMP Air 408.97 at 700 Tdewspan=16.00 CO2 zero 0.9137 -> .9136 Offset: -.34ppm CO2 span 1.0262 -> 1.0266 Offset: -.2ppm H2O zero 0.8891 -> .8886 Offset: -3.0ppm H2O span 1.0199 -> 1.0236 Offset: -.07ppm Notes: |
| 2019-04-18 | 75H-2180 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from SB and brought back to the lab for calibration. It was replaced by sn 75H-2669. |
| 2019-04-23 | 75H-2180 | LI-7500A | Calibration | Lab | Last calibration: 2019-01-25 AGC=102 SDM= DAC1= DAC2= Ambient P=100.6kPa, Tair=24.7C, Tdew=10.9C Zero Air at 1100psi, AMP Air 408.97 at 700 Tdewspan=16.00 CO2 zero 0.9137 -> .9136 Offset: -.34ppm CO2 span 1.0262 -> 1.0266 Offset: -.2ppm H2O zero 0.8891 -> .8886 Offset: -3.0ppm H2O span 1.0199 -> 1.0236 Offset: -.07ppm Notes: |
| 2019-07-25 | 75H-2667 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed at SB to replace sn 75H-2669, which was brought back to the lab for calibration. |
| 2019-11-12 | 75H-2667 | LI-7500A | Calibration | Lab | Last calibration: 2019-07-24 AGC=101.4 SDM= DAC1= DAC2= Ambient P=100.7kPa, Tair=26.2C, Tdew=10.9C Zero Air at 950psi, AMP CA4396 408.97 at 700 Tdewspan=16.00 CO2 zero 0.9413 -> .9419 Offset: 2.32ppm CO2 span 1.0158 -> 1.019 Offset: -1.67ppm H2O zero 0.8363 -> .8384 Offset: 12.8ppm H2O span 1.0222 -> 1.0239 Offset: -.03ppm Notes: |
| 2019-10-31 | 75H-2667 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from Sherman Barn for calibration. Replaced by sn 75H-2668. |
| 2019-11-12 | 75H-2667 | LI-7500A | Calibration | Lab | Last calibration: 2019-07-24 AGC=101.4 SDM= DAC1= DAC2= Ambient P=100.7kPa, Tair=26.2C, Tdew=10.9C Zero Air at 950psi, AMP CA4396 408.97 at 700 Tdewspan=16.00 CO2 zero 0.9413 -> .9419 Offset: 2.32ppm CO2 span 1.0158 -> 1.019 Offset: -1.67ppm H2O zero 0.8363 -> .8384 Offset: 12.8ppm H2O span 1.0222 -> 1.0239 Offset: -.03ppm Notes: |
| 2019-10-31 | 75H-2668 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed at Sherman Barn to replace sn 75H-2667 for calibration. |
| 2020-02-11 | 75H-2668 | LI-7500A | Calibration | Lab | Last calibration: 2019-10-30 AGC=100.4 SDM=0 DAC1=- DAC2=- Ambient P=100.8kPa, Tair=26.9C, Tdew=-1.59C Zero Air at 800psi, AMP CA04396 408.97 at 550 Tdewspan=16.0 CO2 zero 0.9393 -> 0.9393 Offset: -0.1ppm CO2 span 1.016 -> 1.0171 Offset: -0.94ppm H2O zero 0.9096 -> 0.9072 Offset: 2.7ppm H2O span 1.0143 -> 1.0147 Offset: -0.01ppm Notes: Ambient air very dry |
| 2020-02-06 | 75H-2668 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from Sherman Barn and brought back to the lab for calibration. Replaced by sn 75H-2669. |
| 2020-02-11 | 75H-2668 | LI-7500A | Calibration | Lab | Last calibration: 2019-10-30 AGC=100.4 SDM=0 DAC1=- DAC2=- Ambient P=100.8kPa, Tair=26.9C, Tdew=-1.59C Zero Air at 800psi, AMP CA04396 408.97 at 550 Tdewspan=16.0 CO2 zero 0.9393 -> 0.9393 Offset: -0.1ppm CO2 span 1.016 -> 1.0171 Offset: -0.94ppm H2O zero 0.9096 -> 0.9072 Offset: 2.7ppm H2O span 1.0143 -> 1.0147 Offset: -0.01ppm Notes: Ambient air very dry |
| 2020-05-21 | 75H-2668 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed at Sherman Barn to replace sn 75H-2669 for calibration. |
| 2020-07-09 | 75H-2668 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from Sherman Barn with its decommissioning and given to Sabina of Hydrofocus. The DWR grant ended at the end of June 2020, and Bryan requested we hand off a tower to Hydrofocus. |
| 2018-10-18 | 75H-2669 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed on Sherman Barn to replace sn 0041 for calibration |
| 2019-04-15 | 75H-2669 | LI-7500A | Calibration | Lab | Last calibration: 2018-10-10 AGC=103.8 SDM=0 DAC1=- DAC2=- Ambient P=100.16kPa, Tair=24.85C, Tdew=6.62C Zero Air 369068 at 1150psi, AMP CA04396 408.97 at 800 Tdewspan=15.99 CO2 zero 0.9188 -> 0.9186 Offset: -1.10ppm CO2 span 1.0106 -> 1.0134 Offset: -1.52ppm H2O zero 0.8992 -> 0.8991 Offset: -0.3ppm H2O span 1.0034 -> 1.0017 Offset: 0.03ppm Notes: Very stable - Joe |
| 2019-01-31 | 75H-2669 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from SB and brought back to the lab for calibration. It was replaced by 75H-2180. |
| 2019-04-15 | 75H-2669 | LI-7500A | Calibration | Lab | Last calibration: 2018-10-10 AGC=103.8 SDM=0 DAC1=- DAC2=- Ambient P=100.16kPa, Tair=24.85C, Tdew=6.62C Zero Air 369068 at 1150psi, AMP CA04396 408.97 at 800 Tdewspan=15.99 CO2 zero 0.9188 -> 0.9186 Offset: -1.10ppm CO2 span 1.0106 -> 1.0134 Offset: -1.52ppm H2O zero 0.8992 -> 0.8991 Offset: -0.3ppm H2O span 1.0034 -> 1.0017 Offset: 0.03ppm Notes: Very stable - Joe |
| 2019-04-18 | 75H-2669 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed at SB to replace sn 75H-2180, which was brought back to the lab for calibration. |
| 2019-08-01 | 75H-2669 | LI-7500A | Calibration | Lab | Last calibration: 2019-04-15 AGC=102.6 SDM= DAC1= DAC2= Ambient P=100.7kPa, Tair=22.7C, Tdew=14.1C Zero Air at 975psi, AMP CA4396 408.97 at 800 Tdewspan=20.00 CO2 zero 0.9186 -> .9178 Offset: -3.12ppm CO2 span 1.0134 -> 1.0125 Offset: .53ppm H2O zero 0.8991 -> .9019 Offset: 17.8ppm H2O span 1.0017 -> 1.015 Offset: -.3ppm Notes: When SS was 102.6, I reset it to 100. I uploaded the the calibration file from 2018-10-24 and copied in the manual coefficients for CO2 span, CO2 zero, H2O span, and H2O zero from the database's record of the most recent calibration on 2019-04-15. |
| 2019-07-25 | 75H-2669 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from SB and brought back to the lab for calibration. it was replaced by sn 75H-2667. |
| 2019-08-01 | 75H-2669 | LI-7500A | Calibration | Lab | Last calibration: 2019-04-15 AGC=102.6 SDM= DAC1= DAC2= Ambient P=100.7kPa, Tair=22.7C, Tdew=14.1C Zero Air at 975psi, AMP CA4396 408.97 at 800 Tdewspan=20.00 CO2 zero 0.9186 -> .9178 Offset: -3.12ppm CO2 span 1.0134 -> 1.0125 Offset: .53ppm H2O zero 0.8991 -> .9019 Offset: 17.8ppm H2O span 1.0017 -> 1.015 Offset: -.3ppm Notes: When SS was 102.6, I reset it to 100. I uploaded the the calibration file from 2018-10-24 and copied in the manual coefficients for CO2 span, CO2 zero, H2O span, and H2O zero from the database's record of the most recent calibration on 2019-04-15. |
| 2020-02-06 | 75H-2669 | LI-7500A | Installed | Gas Analyzer CO2/H2O | Installed at Sherman Barn to replace sn 75H-2668, which was brought back to the lab for calibration. |
| 2020-05-22 | 75H-2669 | LI-7500A | Calibration | Lab | Last calibration: 2020-02-04 AGC=100.7 SDM=0 DAC1=- DAC2=- Ambient P=100.2kPa, Tair=23.5C, Tdew=8.3C Zero Air at 750psi, AMP CA04396 408.97 at 600 Tdewspan=16.0 CO2 zero 0.9184 -> 0.9185 Offset: 0.44ppm CO2 span 1.016 -> 1.0124 Offset: 1.78ppm H2O zero 0.9006 -> 0.8999 Offset: -4.3ppm H2O span 1.0101 -> 1.0094 Offset: 0.01ppm Notes: |
| 2020-05-21 | 75H-2669 | LI-7500A | Removed | Gas Analyzer CO2/H2O | Removed from Sherman Barn and brought back to the lab for calibration. Replaced by sn 75H-2668. |
| 2020-05-22 | 75H-2669 | LI-7500A | Calibration | Lab | Last calibration: 2020-02-04 AGC=100.7 SDM=0 DAC1=- DAC2=- Ambient P=100.2kPa, Tair=23.5C, Tdew=8.3C Zero Air at 750psi, AMP CA04396 408.97 at 600 Tdewspan=16.0 CO2 zero 0.9184 -> 0.9185 Offset: 0.44ppm CO2 span 1.016 -> 1.0124 Offset: 1.78ppm H2O zero 0.9006 -> 0.8999 Offset: -4.3ppm H2O span 1.0101 -> 1.0094 Offset: 0.01ppm Notes: |
| 2018-07-11 | TG1-0357 | LI-7700 | Installed | Gas Analyzer CH4 | Installed at Sherman Barn on the scaffolding frame in the southwest corner of the cow fence. This is the initial set up of the site. |
| 2019-04-11 | TG1-0357 | LI-7700 | Calibration | Gas Analyzer CH4 | Calibration Location: Sherman Barn Last calibration: 2018-07-10 RSSI=70%, Optical RH=3% Ambient P=101.9kPa, Tair=16.5C Zero Air M4002 at 1800psi, AMP CA03923 3.121 at 1800 CH4 Zero Offset: 0.035ppm CH4 Span Offset: -0.002ppm Notes: Windy 3m/s to 7.5m/s |
| 2019-09-04 | TG1-0357 | LI-7700 | Upgrade | Gas Analyzer CH4 | We updated the 7700 firmware from v1.0.21 to v1.0.27. To do this we had to change the 7700’s IP address to 192.168.2.77 – it was still at the default 169 subnet |
| 2019-10-31 | TG1-0357 | LI-7700 | Calibration | Gas Analyzer CH4 | Calibration Location: Sherman Barn Last calibration: 2019-04-11 RSSI=68%, Optical RH=8% Ambient P=102.8kPa, Tair=12.1C Zero Air at 1000psi, AMP CA03923 3.121 at 1050 CH4 Zero Offset: 0.020ppm CH4 Span Offset: -0.011ppm Notes: Power was out earlier this week. |
| 2020-05-21 | TG1-0357 | LI-7700 | Calibration | Gas Analyzer CH4 | Calibration Location: Sherman Barn Last calibration: 2019-10-31 RSSI=80%, Optical RH=12% Ambient P=101.6kPa, Tair=19.2C Zero Air at 800psi, AMP CA3923 3.121 at 800 CH4 Zero Offset: 0.036ppm CH4 Span Offset: 0.036ppm Notes: Breezy day |
| 2020-07-09 | TG1-0357 | LI-7700 | Removed | Gas Analyzer CH4 | Removed from Sherman Barn with its decommissioning and given to Sabina of Hydrofocus. The DWR grant ended at the end of June 2020, and Bryan requested we hand off a tower to Hydrofocus. |