Equipment and Calibration History
Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 [63] 64 65 66 67 68 69 70| Ser No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| CR1000 50890 | 2012-10-09 | Lab none | Installed | Tonzi-Tower | Installed with NL115 sn 9775 to collect flux data at the Floor tower in parallel with winflux. This data logger is in the box with the sonic PSU near the top of the tower |
| CR1000 50889 | 2012-10-09 | Lab none | Installed | Tonzi-Floor | Installed with NL115 sn 9774 to collect flux data at the Floor tower in parallel with winflux. This data logger is in the box with the sonic PSU. |
| NL115 9775 | 2012-10-09 | Lab none | Installed | Tonzi-Tower | Installed with CR1000 sn 50890 to collect flux data at the Floor tower in parallel with winflux. This interface is in the box with the sonic PSU near the top of the tower |
| NL115 9774 | 2012-10-09 | Lab none | Installed | Tonzi-Floor | Installed with CR1000 sn 50889 to collect flux data at the Floor tower in parallel with winflux. This interface is in the box with the sonic PSU. |
| DO6400/T DO-05 | 2012-04-16 | Lab none | Calibration | Lab none | DO-05 was calibrated in the lab: M = 8.56/34.49053 in (mg/L)/mV (aka ppm/mV) (@ 23C) @ 5 cm below water |
| DO6400/T DO-04 | 2012-04-16 | Lab none | Calibration | Lab none | DO-04 was calibrated in the lab: M = 8.56/35.34089 in (mg/L)/mV (aka ppm/mV) (@ 23C) @15cm below water |
| DO6400/T DO-06 | 2012-07-11 | Lab none | Calibration | Lab none | DO-06 was calibrated in the lab: M = 8.24/39.5 (mg/L)/mV (aka ppm/mV) @ temp = 21.5 C and press.= 100.2 Kpa |
| CS511 DO-2 | 2011-10-19 | Lab none | Calibration | Lab none | DO-02 was calibrated in the lab: M = 8.73/36.8 (mg/L)/mV (aka ppm/mV) @ temp = 21.5 C and press.= 100.2 Kpa |
| DO6400/T DO-07 | 2012-09-13 | Lab none | Installed | Mayberry DO Sensor B | DO-07 was installed in the deep open water position at Mayberry. It is about 45cm below the surface. |
| DO6400/T DO-06 | 2012-10-04 | Lab none | Installed | Mayberry DO Sensor A | DO-06 was installed in the upper water position at the Tule tower. This sensor was removed from the now drained rice field last week. |
| DO6400/T DO-06 | 2012-09-27 | Twitchell Rice DO Sensor | Removed | Lab none | DO-06 was removed from the Twitchell rice because it was high and dry after the field drained. This sensor my go to replace one at Mayberry that's been acting bad. |
| DO6400/T DO-06 | 2012-07-12 | Lab none | Installed | Twitchell Rice DO Sensor | This is DWR DO probe DO-06. It is being installed in the Twitchell Rice since we never bought a replacement for the one we moved to Mayberry. |
| DO6400/T DO-05 | 2012-09-06 | Lab none | Installed | West Pond DO Sensor Upper | DO-05 was resintalled in the shallow location at West Pond. The lab check went fine and it has been decided that the low values are correct and that the water is just very oxygen poor. |
| DO6400/T DO-05 | 2012-08-30 | West Pond DO Sensor Upper | Removed | Lab none | DO-05 was removed from the water at West Pond due to continued low readings. The sensor will be checked in the lab and reinstalled. |
| DO6400/T DO-05 | 2012-08-16 | West Pond DO Sensor Upper | Serviced | West Pond DO Sensor Upper | DO-05 was serviced in the field due to continued unexpectedly low readings. The inside was rinsed with vinegar and scrubbed with a tooth brush. The electrolyte was replaced. |
| DO6400/T DO-05 | 2012-08-02 | West Pond DO Sensor Upper | Serviced | West Pond DO Sensor Upper | DO-05 was serviced in the field due to unexpectedly low readings. The electrolyte was replaced. |
| DO6400/T DO-04 | 2012-09-06 | Lab none | Installed | West Pond DO Sensor Lower | DO-04 was resintalled in the deeper location at West Pond. The lab check went fine and it has been decided that the low values are correct and that the water is just very oxygen poor. |
| DO6400/T DO-04 | 2012-08-30 | West Pond DO Sensor Lower | Removed | Lab none | DO-04 was removed from the water at West Pond due to continued low readings. The sensor will be checked in the lab and reinstalled. |
| DO6400/T DO-04 | 2012-08-16 | West Pond DO Sensor Lower | Serviced | West Pond DO Sensor Lower | DO-04 was serviced in the field due to continued unexpectedly low readings. The inside was rinsed with vinegar and scrubbed with a tooth brush. The electrolyte was replaced. |
| DO6400/T DO-04 | 2012-08-02 | West Pond DO Sensor Lower | Serviced | West Pond DO Sensor Lower | DO-04 was serviced in the field due to unexpectedly low readings. The electrolyte was replaced. |
| CS511 DO-3 | 2011-03-01 | Lab none | Installed | Mayberry DO Sensor C | DO-03 was installed in the Tules at the new Mayberry Tule Tower. |
| CS511 DO-2 | 2012-09-27 | Mayberry DO Sensor A | Removed | Lab none | DO-02 was removed from the upper water location at the Tule tower because it ws reading -INF. Inspection in the lab showed that the inner metal coil had corroded to the point of developing a gap in one of the loops. |
| CS511 DO-2 | 2011-10-20 | Lab none | Installed | Mayberry DO Sensor A | DO-02 was installed near the water surface in the open water location. This sensor was moved from the Twitchell Rice while the field is drained. |
| CS511 DO-2 | 2011-09-22 | Twitchell Rice DO Sensor | Removed | Lab none | DO-02 was removed from the Twitchell Rice because the field has been drained an the probe was high and dry. |
| CS511 DO-2 | 2011-05-13 | Lab none | Installed | Twitchell Rice DO Sensor | DO-02 was installed in the Twitchell Rice. |
| CS511 DO-2 | 2011-03-22 | Twitchell Rice DO Sensor | Removed | Lab none | DO-02 was removed from the Twitchell Rice because the field has been drained an the probe was high and dry. |
| CS511 DO-1 | 2012-09-06 | Mayberry DO Sensor B | Removed | Lab none | DO-01 was removed from the deep open water position at Mayberry due to reading out of range high. It will be tested in the lab. |
| CS511 DO-1 | 2012-08-16 | Mayberry DO Sensor B | Serviced | Mayberry DO Sensor B | DO-01 was rinced with vinegar and cleaned with a tooth brush then rinced with DI before refilling with electrolyte. The sensor had been giving reading out of range high. |
| CS511 DO-1 | 2010-10-01 | Twitchell Rice DO Sensor | Removed | Lab none | DO-01 was removed from the Twitchell Rice because the field has been drained an the probe was high and dry. It will be used at Mayberry. |
| CS511 DO-1 | 2010-08-17 | Lab none | Installed | Twitchell Rice DO Sensor | DO-01 was installed at the Twitchell Rice site. |
| HFP01SC 00067 | 2012-09-10 | Lab none | Repair | Lab none | I shortened the cable on this SFH plate. The cable had been spliced in the field where a large portion of it was tangled in the Tules and much longer than necessary. |
| HFP01 000139 | 2012-09-10 | Lab none | Repair | Lab none | I spliced a new wire on to this SHF plate in preparation for calibration by Sebastian. The insulation on the old cable was cracked and rotting. |
| HFP01SC 00244 | 2012-09-10 | Lab none | Repair | Lab none | I spliced a new wire on to this SHF plate in preparation for calibration by Sebastian. |
| HFP01 002211 | 2012-09-06 | Twitchell Rice Heat Flux Plate D | Removed | Lab none | Removed from the Twitchell tower for calibration. This was #2 of three SHF plates. |
| HFP01 001604 | 2012-09-06 | Factory | Removed | Lab none | Removed from Sherman (SHF #1) for calibration. This plate had been reading oddly rencently and was found to be just barely below the surface. It will be replaced after calibration. |
| HFP01SC 00067 | 2012-09-06 | Mayberry Heat Flux Plate Water | Removed | Lab none | Reomved from the Tule Tower at Mayberry. SHF under a meter of water is questionable and these plates would be more useful else where. Removed to be calibrated and repurposed - not planning to replace. |
| HFP01 000141 | 2012-09-06 | Mayberry Heat Flux Plate Vegetation | Removed | Lab none | Reomved from the Tule Tower at Mayberry. SHF under a meter of water is questionable and these plates would be more useful else where. Removed to be calibrated and repurposed - not planning to replace. |
| HFP01 001603 | 2012-09-05 | Vaira | Removed | Lab none | Removed from the Vaira tower for calibration. This sensors was burried under the end of the PVC conduit and under a gopher mound at about 10cm below the surface. This was the first of the heat flux plates. |
| HFP01 000139 | 2012-09-05 | Tonzi Heat Flux Plate B | Removed | Lab none | Removed from Tonzi Floor for repair and calibration. This sensor was about 3cm below the ground surface. The insulation of its cable was all cracked and rotting. This was SHF plate #2. |
| LI-7500A 75H-2150 | 2012-09-06 | Twitchell Rice Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the Twitchell tower for calibration. Replaced by 2176. |
| LI-7500A 75H-2176 | 2012-09-06 | Lab none | Installed | Twitchell Rice Gas Analyzer CO2/H2O | Installed to replace sn 2150 for calibration. The 7550 box was swapped at the same time because the existing box (sn 0614) could not accept new heads. AIU-0674 went on the tower. |
| LI-7500A 75H-2176 | 2012-08-29 | Lab none | Calibration | Lab none | Calibration Date:2012-08-29
Last calibration: 2012-01-27 AGC=44 SDM=6 DAC1= DAC2= Ambient P=100.32kPa Tair=26.67C, Tdew=13.58C Zero air at 1800psi, CO2 in air 398.9ppm 2000psi Tdewspan=15.08 CO2 zero 0.8691 -> 0.8694 Offset: 1.4ppm CO2 span 1.0076 -> 1.0152 Offset: -3.8ppm H2O zero 0.8509 -> 0.8534 Offset: 14.3mmol/m3 H2O span 0.9947 -> 0.9979 Offset: 0C Notes: This IRGA seemed to be reading low in the field but no major offset seen in calibration. First lab calibration since receiving this instrument. |
| LI-7550 AIU-0674 | 2012-09-06 | Lab none | Installed | Twitchell Rice Interface LI-7500 | Installed on the Twitchell tower to replace sn 0614 that was having trouble accepting new heads. sn 0614 was removed to the lab for observation. Head 2150 was removed for calibration and head 2176 was swapped in. |
| LI-7550 AIU-0614 | 2012-09-06 | Twitchell Rice Interface LI-7500 | Removed | Lab none | Removed from the Twitchell tower with head 2150. Replaced with AIU-0674 and 2176 head. This box would enter a reboot cycled when I tried to swap heads. It will be tested in the lab. |
| LI-7550 AIU-0614 | 2012-05-07 | Lab none | Installed | Twitchell Rice Interface LI-7500 | Installed on the Twitchell tower with 7500A head 2150 replacing AIU-0397. The eddy system was reconfigured to start collecting data on this 7550 box. The CR1000 and older model 7500 head and box were removed. |
| LI-7550 AIU-0397 | 2012-05-09 | Lab none | Upgrade | Lab none | I updated the firmware in this 7550 box to support the new 7500A heads. This box was originally bought with only a 7700 and came with firmware that did not support the 7500s. |
| LI-7550 AIU-0397 | 2012-05-07 | Twitchell Rice Interface LI-7500 | Removed | Lab none | Removed from the Twitchell tower. Replaced with 7550 sn AIU-0614 and 7500A sn 2150. |
| LI-7550 AIU-0397 | 2012-01-17 | Lab none | Installed | Twitchell Rice Interface LI-7500 | Installed with LI7700 sn TG1-0211. Connected to the CR1000 by SDM. This box came with LI7700 sn TG1-0155 and is not CO2/H2O enabled. This means the SDM interface provides the 7700 data. |
| LI-7700 TG1-0211 | 2012-01-17 | Lab none | Installed | Twitchell Rice Gas Analyzer CH4 | Installed on the Twitchell tower with the old 7550 box (sn AIU-0397). Connected to the CR1000 by SDM. |
| LI-7700 TG1-0100 | 2011-01-31 | Lab none | Returned | Factory | Returned to Licor after having been loaned to us since last May. |
| LI-7700 TG1-0100 | 2011-01-28 | Mayberry Tower | Removed | Lab none | Removed from the Mayberry tower for return to Licor. No CH4 at Mayberry until the new 7700 (sn TG1-0211) is ready to go next week. |
| LI-7700 TG1-0141 | 2012-08-06 | Lab none | Returned | Factory | Returned to Licor after being on loan to us while ours was repaired |
| LI-6400 PSC-0785 | 2012-07-13 | Lab none | Shipped | Factory | Shipped to Licor for repair and calibration on RMA 170405. The system has a leak that we have been unable to find. |
| LI-6400 PSC-0785 | 2012-08-15 | Factory | Returned | Lab none | Returned from repair and calibration at Licor on RMA 170405. Licor fixed a intermittent power switch, found a D-shaped vinyl gasket on the sample chamber not installed correctly, replaced leaking home made tube plugs, and found a small leak in a loose bottom cap on the desicant tube. Licor calibrated the system.
software version v5.3.2 |
| LI-7500A 75H-2176 | 2012-08-23 | West Pond Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the West Pond Tower by Cove for calibration. Replaced by sn 2182. |
| LI-7500A 75H-2182 | 2012-08-23 | Lab none | Installed | West Pond Gas Analyzer CO2/H2O | Installed on the West Pond tower to replace sn 2176 for calibration. |
| LI-7500A 75H-2182 | 2012-08-16 | Mayberry Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the Mayberry permanent tower for calibration. Replaced by sn 0065 that was recently upgraded to a 7500A interface. |
| LI-7500A 0065 | 2012-08-16 | Lab none | Installed | Mayberry Gas Analyzer CO2/H2O | Installed on the Mayberry permanent tower. sn 2182 was removed for calibration. The existing coefficeints and zero/span values were downloaded from the 7550 box. The new coefficients and zero/span values were uploaded to the 7550 box. The existing head sn 2182 was removed and this IRGA was installed. All looked well. |
| LI-7500A 0065 | 2012-08-09 | Lab none | Installed | Lab none | This IRGA has recently been upgraded to a 7500A interface. I tried to install it on the 7550 box at Twitchell but it sent the 7550 box into a reboot cycle. So now it is back in the lab to be tried on another tower. |
| LI-7500A 0065 | 2012-08-09 | Lab none | Calibration | Lab none | Last calibration: 2012-08-07 AGC=43.8 SDM=10 DAC1= DAC2= Ambient P=100.25kPa, Tair=22.21C, Tdew=5.88C Zero air at 1800psi, CO2 in air 436.53 at 450 Tdewspan=15.08 CO2 zero 0.9473 -> 0.8715 Offset: -576ppm CO2 span 1.3749 -> 1.0183 Offset: 225.47ppm H2O zero 0.6596 -> 0.6361 Offset: -151ppm H2O span 1.2399 -> 1.0392 Offset: 4.02ppm Notes: This was a second calibration after upgrading to a LI75000A head interface and letting new internal chemicals settle for two days. There are large offsets but the new zero/span numbers match the calibration of 8-6 before the upgrade. A second check of zeros CO2 0.8714 0.5 ppm offset, H2O 0.6364 2.3 mmol/m3 offset. |
| LI-7500A 0065 | 2012-08-07 | Lab none | Calibration | Lab none | Last calibration: 2012-08-06 AGC=37.5 SDM=10 DAC1= DAC2= Ambient P=100.68kPa, Tair=22.52C, Tdew=C Zero air at 1700psi, Co2 in air 436.53 at 1450 Tdewspan=15.08 CO2 zero 0.874 -> 0.9473 Offset: 294.5ppm CO2 span 0.9973 -> 1.3749 Offset: -146.53ppm H2O zero 0.6387 -> 0.6596 Offset: 187.9ppm H2O span 1.0898 -> 1.2399 Offset: -2.67ppm Notes: Initial calibration after upgrading to a 7500A head. Calibration coefficients and zero/span values were entered by hand into the LI-7550. New internal chemicals will need to settle for at least a day. |
| LI-7500A 75H-2182 | 2012-08-21 | Lab none | Calibration | Lab none | Last calibration: 2012-01-27
AGC=43.8 SDM=10 DAC1= DAC2= Ambient P=100.92kPa, Tair=23.95C, Tdew=13.18C Zero air at 1800psi, CO2 in air 436.53 at 400 Tdewspan=15.08 CO2 zero 0.8832 -> 0.8838 Offset: 2.62ppm CO2 span 1.0039 -> 1.0277 Offset: -12.88ppm H2O zero 0.8329 -> 0.8371 Offset: 27.9ppm H2O span 0.9992 -> 0.9989 Offset: 0.06ppm Notes: First lab calibration since receiving this instrument. |
| FGGA 09-0011 | 2012-07-20 | Lab none | Calibration | Lab none | Last calibration: 2011-10-06 Cell Pressure=138.44Torr, Cell Temperature=21.50C, Ring Time=13.448usec CH4 in air at 500psi CH4 Span=3.228ppm, CO2 Span=410ppm CH4 = 3.228 -> 3.228 Offset: 0ppb CO2 = 413 -> 410 Offset: -3ppm Notes: CH4 was right on and not calibrated. Only calibrated for CO2. |
| FMA RMT-200 08-0114 | 2012-08-24 | Lab none | Calibration | Lab none | Last calibration: 2012-07-12 Cell Pressure=127.70Torr, Cell Temperature=22.53C, Ring Time=11.885usec God Bottle at 300psi CH4 Span=1.8978ppm CH4 = 1.830 -> 1.897 Offset: 67.8ppb Notes: This analyzer was removed from the field yesterday for low pressure problems. Pressure seems better but fell from 142Torr on start up. The calibration was used to check a secondary cal tank. About 70 readings gave an average of 3.905ppm CH4 |
| FMA RMT-200 08-0114 | 2012-08-23 | Sherman Island | Removed | Lab none | Removed from the box at Sherman by Cove. This analyzer has had low pressure in slow flow mode. It was replace by LGR FMA sn 05-0010. |
| FMA RMT-200 05-0010 | 2012-08-23 | Lab none | Installed | Sherman Island | Installed in the box at Sherman by Cove. This is to replace sn 08-0114 that has had low pressure when running on the internal pump. |
| FMA RMT-200 05-0010 | 2012-08-23 | Lab none | Calibration | Lab none | Last calibration: 2012-05-01 Cell Pressure=156.91Torr, Cell Temperature=21.20C, Ring Time=13.885usec CH4 in air at 1500psi CH4 Span=4.982ppm CH4 = 4.931 -> 4.988 Offset: 51ppb Notes: |
| LI-7500 0976 | 2012-06-06 | Tonzi-Floor | Removed | Lab none | Removed from the Tonzi Floor tower for calibration. Replaced with sn 0035. |
| NL115 6763 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed with CR1000 sn 38212 in the DWR Corn data logger box to collect 10Hz flux data. |
| AM16/32B 11663 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed in the data logger box on the DWR Corn scaffolding. |
| AM25T 6769 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed in the data logger box on the DWR Corn scaffolding. |
| PS-30M 11400073 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed in a small enclosure on south side of the DWR Corn scaffolding. Connected to two solar panels and four deep cycle baterries. |
| KD140SX-UFBS 11ZV0M0830 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed on south side of the DWR Corn scaffolding with tri-groove and penta-plus bolts and nuts. |
| KD140SX-UFBS 11ZV0M0859 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed on south side of the DWR Corn scaffolding with tri-groove and penta-plus bolts and nuts. |
| WMP 1352 000024 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed on the DWR Corn scaffolding with the rest of the equipment. |
| CR1000 38212 | 2012-05-21 | Lab none | Installed | DWR Corn | Installed with the rest of the equipment on the scaffolding at the DWR Corn site. This data logger is collecting the 10Hz flux data. |
| CR1000 47109 | 2012-04-17 | Lab none | Installed | West Pond Data Logger Met | Installed in box at west pilot pond. Not running because of forgotten power connector. |
| CR23X 2143 | 2012-07-26 | Lab none | Installed | Mayberry Data Logger Tule | Installed on the Tule Tower with a new enclosure and the new Vaisala CO2 sensors in the water. The old CR10X (sn 35474) was removed and the multiplexors were wired to the 23X. |
| LI-7550 AIU-0397 | 2012-05-10 | Lab none | Installed | Mayberry-Portable | Installed with the Mayberry Portable tower in the back on the truck. |
| LI-7700 TG1-0155 | 2012-05-10 | Lab none | Installed | Mayberry-Portable | Installed with the Mayberry Portable tower in the back on the truck. |
| LI-7500A 0035 | 2012-08-09 | Lab none | Installed | Sherman Island Gas Analyzer CO2/H2O | Installed on the Sherman tower to replace sn 0418 for calibration. |
| LI-7500A 0418 | 2012-08-09 | Sherman Island Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the Sherman tower for calibration. Replaced by sn 0035. |
| LI-7500A 0073 | 2012-07-25 | Lab none | Installed | Tonzi-Floor | Installed on the Tonzi Floor Tower. sn 0035 removed for calibration. |
| LI-7500A 0035 | 2012-07-25 | Tonzi-Floor | Removed | Lab none | Removed from the Tonzi Floor Tower for calibration. Replaced by sn 0073. |
| LI-7500A 0035 | 2012-08-07 | Lab none | Calibration | Lab none | Last calibration: 2012-06-04 AGC=50 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.7kPa, Tair=23.83C, Tdew=13.32C Zero air at 1900psi, CO2 in air 436.53 at 1450 Tdewspan=15.08 CO2 zero 0.9389 -> 0.9388 Offset: -0.49ppm CO2 span 1.0191 -> 1.0176 Offset: 0.57ppm H2O zero 0.8992 -> 0.8994 Offset: 1.1ppm H2O span 1.0371 -> 0.9957 Offset: 0.92ppm Notes: Very little drift in this calibration as compared to last time unlike sn 0042. |
| LI-7500A 0065 | 2012-08-07 | Lab none | Upgrade | Lab none | This IRAG has been selected to be upgraded to a 7500A head interface. This is the oldest IRGA that has not been overhauled. The upgrade went smoothly, o-rings were greased, the internal chemicals were changed, coefficients were manually entered in the LI-7550 box (sn AIU-0674). The gain potentiometer was adjusted, per instructions, about a half turn before maxing out. The AGC was 50.0 before adjusting and 43.75 afterwards. See initial calibration this date. A subsequent calibration will be done in two days to let the internal chemicals settle. |
| LI-7500A 0065 | 2012-08-06 | Lab none | Calibration | Lab none | 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. |
| LI-7500A 0042 | 2012-08-02 | Lab none | Calibration | Lab none | Last calibration: 2012-05-17 AGC=53 SDM=7 DAC1=0-1000 DAC2=10-25 Ambient P=100.49kPa, Tair=21.28C, Tdew=11.87C Zero Air at 1900psi, CO2 in air 436.53 at 1400 Tdewspan=15.08 CO2 zero 0.9546 -> 0.9513 Offset: -12.72ppm CO2 span 1.0182 -> 1.0044 Offset: 7.97ppm H2O zero 0.8346 -> 0.8472 Offset: 72.5ppm H2O span 0.8284 -> 0.9696 Offset: -3.2ppm Notes: Relatively large offsets seem to counter similar large offsets seen at last calibration. H2O zero offset may be a typo. |
| LI-7500A 0042 | 2012-07-25 | Vaira Gas Analyzer CO2/H2O | Removed | Lab none | Removed from the Vaira tower for calibration. Replaced by sn 0041. |
| LI-7500A 0042 | 2012-08-02 | Lab none | Installed | DWR Corn | Installed on the DWR Corn Tower to replace sn 0065 for calibration and upgrade. |
| LI-7500A 0065 | 2012-08-02 | DWR Corn | Removed | Lab none | Removed from the DWR Corn Tower for calibration and upgrade to LI-7500A. Replaced by sn 0042. |
| LI-7700 TG1-0141 | 2012-08-02 | Mayberry-Portable | Removed | Lab none | Removed from the Mayberry Portable Tower in Location One. Replaced in Location Two with our 7700 sn TG1-0155. |
| LI-7700 TG1-0141 | 2012-06-29 | Lab none | Installed | Mayberry-Portable | Installed on the portable tower at Mayberry in Location One. Our 7700 has been off the tower and in for repair for a couple of weeks. |
| LI-7700 TG1-0155 | 2012-08-02 | Lab none | Installed | Mayberry-Portable | Installed on the Mayberry Portable tower. A loaner 7700 from Licor was removed to be returned to Licor. |
| ML2x 54/004 | 2001-03-01 | Lab none | Installed | Tonzi | Installed near the Tonzi Tower at -50cm |
| ML2x 54/009 | 2001-03-01 | Lab none | Installed | Tonzi | Installed near the Tonzi Tower at -50am. |
| ML2x 31/100 | 2001-01-05 | Lab none | Installed | Tonzi | Installed near the Tonzi Tower at -20cm under the trees. |
| ML2x 31/092 | 2001-01-05 | Lab none | Installed | Tonzi | Installed near the Tonzi Tower at -20cm in the open. |
| ML2x 31/033 | 2001-01-05 | Lab none | Installed | Tonzi | Installed near the Tonzi Tower at the surface. |
| ML2x 31/085 | 2001-01-05 | Lab none | Installed | Tonzi | Installed at the Tonzi Tower at -20cm in the open. |