Equipment and Calibration History

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Ser No.DateLoc FromTitleLoc ToNotes
NR-LITE 041556 2011-02-03 Tonzi-Floor Removed Lab none Removed from the open space near the floor solar panels.
NR-LITE 990350 2011-02-03 Tonzi Removed Lab none Removed from under the trees near the floor tower.
PAR-LITE 010163 2011-02-03 Tonzi Removed Lab none Removed from the open space near the floor solar panels.
PAR-LITE 010161 2011-02-03 Tonzi Removed Lab none Removed from the open space near the floor solar panels.
LI-7500A 0042 2011-01-28 Twitchell Rice Gas Analyzer CO2/H2O Removed Lab none This sensor was removed from the Twitchell tower for calibration in the lab. sn 1594 was swapped in.
LI-7500A 1594 2011-01-28 Lab none Installed Twitchell Rice Gas Analyzer CO2/H2O This sensor was installed on the Twitchell tower to swap out sn 0042 for calibration.
LI-7700 TG1-0155 2011-01-31 Lab none Calibration Lab none On 1/27/11, Dennis and Jaclyn tested the LI-7700 output against the calibration gases in the lab.

1. The tank with 4.982 ppm methane read 5.021 ppm on the LI-7700.
2. The zero air tank read 0.05 ppm on the LI-7700 (although low confidence that the gas is in fact zero methane.
3. The 1.8978 god bottle read 1.898 on the LI-7700.

We chose not to calibrate the instrument since the readings were so close to the actual values.
CS525 pH-1 2011-01-27 Lab none Calibration Lab none Jaclyn Hatala calibrated the pH probe on 1/27/11.

1. First I obtained the following buffers from the Barker storeroom: 1-0240 (pH4) and 1-0250 (pH7) to do a 2 point
calibration.

2. Following the instructions for calibration in Appendix A of the manual, I submerged the probe in the
pH 7 buffer solution and measured the mV output using the datalogger program: MBCR23x_TOWERMET_V100.

3. After recording measurements for 10 minutes, I rinsed the probe with deionized water and gently dried it.

4. Next I submerged it in the pH 4 buffer solution and recorded the mV output for 10 minutes.

5. I calculated the slope between the 2 measurements to get the multiplier in pH/mV = -0.0173 pH/mV.
CS547A 5688 2011-01-27 Lab none Calibration Lab none Jaclyn Hatala did a temperature correction calibration for the EC probe on 1/27/11.

1. First, I submerged the probe in water of 25C for 10 minutes and recorded the uncorrected EC values from
the datalogger program MBCR23X_TOWERMET_V100.

2. Next, I submerged the probe in water of 20C for 10 minutes and recorded the uncorrected EC values.

3. I used the formula TC=100 * (C-C_25)/((t-25)*C_25) provided by the Campbell manual to calculate the temperature
correction in %/C. The value I got was 0.786%/C.

4. I changed the MBCR23x_TOWERMET_V100 program to use the uncorrected EC to provide a corrected EC value (Cond_corr).
LI-7500A 1594 2011-01-26 Lab none Calibration Lab none Last cal 2010-10-06, SMD 7 DAC1 H2O 0-1000 DAC2 CO2 10-25
AGC = 51%, T = 24.39 C, P = 101.08 kPa, Td = 1.67 C
Zero air = 0.0 1700 psi CO2 = 597.4 ppm <200psi Td = -0.4 C
CO2 zero = 0.8645-> 0.8647, offset +0.85 ppm
CO2 span = 1.0061 -> 1.0056, offset +0.4 ppm
H2O zero = 0.8938 -> 0.8932, offset -3.0 mmol/m3
H2O span = 0.9851 -> 0.9858, offset +0.03 C
LI-7700 TG1-0155 2011-01-25 Factory Returned Lab none Returned from repair at Licor. Service note say: "The spars were knocked out of alignment. The spinning mirror bearings were knocked out of alignment. Replaced the motor and realigned everything. Tested in environmental chamber from -25C to 50C. Calibrated.

Changes to settings:
Zero = 23.0176
Span = 0.00010261

sampledcoffset = 430
samplescoffset = -965
LI-7700 TG1-0155 2010-12-22 Lab none Repair Factory The new LI-7700 was returned to Licor for repair.
LI-7700 TG1-0155 2010-12-08 Lab none Initial settings Lab none Zero = -27.0097
Span = 0.00010248
lasermoddepth = 16850
laserstarttemp = 21.8
blockstrattemp = 30
blockstarttemplowrange = 5
rssidropthresh = 0
pzero = 57.5
pspan = 15.27
samplegain = 0
refgain = 0
mirrorpos = 0
offset1 = 31500
delta1 = 70
offset2 = 0
delta2 = 0
dither = 30000
sampledcoffset = 419
sampleacoffset = -960
sampleopticaloffset = 0

IPV6 = fe80:021c:94ff:fe04:04fe
IPV4 = 169.254.125.82
CS511 DO-2 2011-01-24 Lab none Calibration Lab none On January 24, 2011, Jaclyn Hatala calibrated 2 CS511 Sensorex dissolved oxygen sensors in the lab.

1. I filled the caps with water, to make sure that the membrane was secure and not leaking.

2. I emptied the caps and filled them with the electrolyte solution provided.

3. I attached the two sensors to a datalogger with a multiplier of 1.0, and recorded data every 10 seconds
for 15 minutes with the sensors out of water

4. I calculated the multiplier by the equation: M=P/R provided in the manual, where P is the given atmospheric
O2 concentration given the room temperature and pressure (in this case for 24C and sea level, 8.09ppm)

5. The sensor was labeled DO_2: coef 0.2394ppm/mV. The datalogger output and
calculations are in DOcal_24Jan2011.xlsx.
CS511 DO-3 2011-01-24 Lab none Calibration Lab none On January 24, 2011, Jaclyn Hatala calibrated 2 CS511 Sensorex dissolved oxygen sensors in the lab.

1. I filled the caps with water, to make sure that the membrane was secure and not leaking.

2. I emptied the caps and filled them with the electrolyte solution provided.

3. I attached the two sensors to a datalogger with a multiplier of 1.0, and recorded data every 10 seconds
for 15 minutes with the sensors out of water

4. I calculated the multiplier by the equation: M=P/R provided in the manual, where P is the given atmospheric
O2 concentration given the room temperature and pressure (in this case for 24C and sea level, 8.09ppm)

5. The sensor was labeled DO_3: coef 02352ppm/mV
calculations are in DOcal_24Jan2011.xlsx.
LI-7500A 0065 2011-01-19 Lab none Installed Vaira Gas Analyzer CO2/H2O This sensor was installed on the Vaira tower after laboratory calibration. sn 1597 was removed.
LI-7500A 0041 2011-01-05 Tonzi-Floor Removed Lab none This sensor was removed from the Tonzi Floor tower for calibration. Replaced by sn 0035.
LI-7500A 0035 2011-01-05 Lab none Installed Tonzi-Floor This sensor was installed on the Tonzi Floor tower after laboratory calibration. sn 0041 was removed.
LI-7500A 0065 2011-01-05 Tonzi-Tower Removed Lab none Removed from the Tonzi Tower for calibration. Replaced by sn 0976
LI-7500 0976 2011-01-05 Lab none Installed Tonzi-Tower This sensor was installed on the Tonzi Tower after laboratory calibration. sn 0065 was swapped off.
LI-7500A 1594 2011-01-19 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from the Vaira Tower for calibrations.
CR10X 20139 2010-12-09 Tonzi Removed Lab none This data logger was removed with the IRT sensors from Tonzi.
CR10X 20139 1999-10-18 Factory Calibration Factory Calibrated at Campbell Sci.
HMP45AC U3030046 2009-04-03 Lab none Installed Twitchell Rice RH & Temp This sensor was installed with the new eddy tower at Twitchell Rice.
HMP45AC U3030046 2011-01-18 Twitchell Rice RH & Temp Removed Lab none This sensor was removed from the Twitchell tower because it was giving bad readings.
HMP45AC U3030032 2011-01-18 Lab none Installed Twitchell Rice RH & Temp This sensor was checked in the lab against the Vaisala hand-held and was very close +-1C +-1%. It was then installed on the Twitchell tower to replace the one there that didn't seem to be working.
FMA RMT-200 08-0114 2011-01-18 Twitchell Rice Removed Lab none Removed from Twitchell Island after suffering a power problem before Christmas. Initial symptom was blowing 15A fuse in power connector. Internally, a big capacitor and a diode are blown on the main power board.
FMA RMT-200 05-0010 2011-01-18 Lab none Installed Twitchell Rice Installed to replace our other LGR FMA that suffered a power problem.
FMA RMT-200 05-0010 2010-11-29 Factory Returned Lab none Returned from factory repair. Replaced internal plumbing, throttle valve, solenoid valve, partical filter, laser driver board and cavity mirror. 41.72 total. Broken parts returned with analyzer.
FMA RMT-200 05-0010 2010-10-19 Lab none Repair Factory This FMA was sent to the factory for repair. RMA 10-0139
WSCA04-00106 GU91002363 2011-01-13 Factory Disposed Disposed Returned to manufacture in exchange for a new one.
PRB-K Type #8 00000128B7B90 2010-12-09 Lab none Installed Vaira Moisture Point Gate This probe was intalled at Vaira inside the cow fense to the right of the gate and fence charger.
PDCR 1830-8388 2421703 2010-10-20 Lab none Calibration Lab none This water pressure sensor was calibrated in the lab by lowering it into a ABS pipe filled with water. The probe was lowered in 0.25m intervals as marked on the cable and output mV/V values were recorded. The factory calibration is 0.98 (mV/V)/psi and the conversion to depth is 2.307ft/psi. with a little unit conversion to final relationship is:
Depth (m) = Output (mV/V)*0.7472 - 0.0094
Explorer E1B120 E3481119463770 2010-11-16 Factory Received Lab none Returned from repair at Heusser Newweigh. Factory removed insects from load cell, performed manufacturers calibrations and tested the scale.
LI-7500A 0035 2010-11-18 Twitchell Rice Gas Analyzer CO2/H2O Removed Lab none This IRGA was removed from the Twitchell Tower for calibration.
LI-7500A 0042 2010-11-18 Lab none Installed Twitchell Rice Gas Analyzer CO2/H2O This IRGA was installed on the Twitchell tower after the move to replace sn 0035 for calibration.
LI-7500 0976 2010-11-18 Sherman Island Gas Analyzer CO2/H2O Removed Lab none This IRGA was removed from the Sherman Tower for calibration.
LI-7500A 0418 2010-11-18 Lab none Installed Sherman Island Gas Analyzer CO2/H2O This IRGA was installed at Sherman Island to replace sn 0976 for calibration.
LI-7500A 0418 2010-11-16 Lab none Calibration Lab none Last cal 2010-08-13, SMD 7 DAC1 H2O 0-1000 DAC2 CO2 10-25
AGC = 49%, T = 24.35C, P = 100.92kPa, Td = 12C
Zero Air 1700psi, CO2 597.4ppm 200psi, Td = 9.6C
CO2 zero = 0.9038-> 0.9017, offset -8.3ppm
CO2 span = 1.0047-> 0.9983, offset +5.6ppm
H2O zero = 0.8467-> 0.8479, offset +7.2mmol/m3
H2O span = 0.9841-> 0.9644, offset +0.43C
LI-7500A 0042 2010-11-16 Lab none Calibration Lab none Last calibration Aug 13, 2010
AGC=66, SDM=7, DAC1 0-1000 H2O, DAC2 10-25 CO2
P=100.96kPa Tair=25.29C, Tdew=15C
Zero air no scrubs 1700psi, CO2 597.4ppm 200psi, Tdew=9.7C
Precal CO2 zero=0.9676, span=0.9814
Postcal CO2 zero=0.9622, span=0.9827
Precal H2O zero=0.7680, span=0.1.0441
Postcal H2O zero=0.7829, span=0.9693
CO2 zero off by -20.10ppm, span off by -1ppm
H2O zero off by +113.7mmol/m3, span off by +1.62C
PRB-K Type #8 00000128B8072 2010-11-12 Vaira Moisture Point Gate Removed Lab none The bottom measurement location was not working so it was removed and brough back to the lab for testing/repair. The pilot rod was left in the hole.
PRB-K Type #8 00000128B97F3 2010-11-12 Lab none Installed Vaira Moisture Point Gate Installed inside the cow fence at Vaira on the east side of the enclosure where a broken probes was previously removed.
PRB-K Type #8 00000128B8072 2010-11-12 Lab none Installed Vaira Moisture Point Gate Installed inside the cow fence at Vaira near the gate on the south side of the enclosure.
PRB-K Type #8 00000128BDDE8 2010-11-12 Lab none Installed Vaira Moisture Point Biomass Installed in the west corner of Bill Frost's biomass sampling enclosure at Vaira.
Explorer E1B120 E3481119463770 2010-11-01 Lab none Repair Factory Sent to Heusser Neweigh, Concord, CA for repair.
CR10X 25799 2010-10-27 Lab none Installed Mayberry Data Logger Tule Installed at the Mayberry site.
GMT222 GMT-Y4110010 2010-10-27 Sherman Island Removed Lab none This transmitter was removed from Sherman for testing because it was reporting >6V at 1.23% which was inconsistent with the label on the transmitter. However the probe attached to it (sn Y1950005) was a 1% probe not 3% as the label said. This transmitter is probably okay.
GMP222 Y1950005 2010-10-27 Sherman Island Removed Lab none This probe was removed from the Sherman site for testing because it was reporting >6V at 1.23% which was inconsistent with the label on the transmitter that said it was a 3% probe. However, this is a 1% probe so it is probably fine.
CS511 DO-1 2010-10-27 Lab none Installed Mayberry DO Sensor A Installed at the Mayberry site to the east of the tower near the surface of a rising water level.
PDCR 1830-8388 2421703 2010-10-27 Lab none Installed Mayberry Water Level This sensor was installed at the Mayberry site. It was installed 1.25m below the top of the plastic pipe and the top of the pipe is 71.5cm above the surface.
LI-7700 TG1-0100 2010-06-16 Sherman Island Gas Analyzer CH4 Open-path Removed Twitchell Rice Gas Analyzer CH4 The Li7700 was removed from the Sherman Island cow pasture tower and brought to Twitchell Rice for calibration.
LI-7700 TG1-0100 2010-05-28 Sherman Island-Levee Gas Analyzer CH4 Removed Sherman Island Gas Analyzer CH4 Open-path Removed from the Sherman Levee tower for installation on the Sherman Tower at the cow pasture.
PDCR 1830-8388 2421703 2010-10-14 Sherman Island Removed Lab none This sensor was removed from the Sherman Tower for lab calibration before being deployed at the new Mayberry site.
LI-7500A 0073 2010-10-14 Lab none Installed Mayberry Gas Analyzer CO2/H2O Installed as part of the tower at the new Mayberry wet land site.
HMP45AC U3030041 2010-10-14 Lab none Installed Mayberry Tower Installed as part of the tower at the new Mayberry wet land site.
WMP 1352 000022 2010-10-14 Lab none Installed Mayberry Anemometer Installed as part of a new tower at the new Mayberry wet land site.
LI-7700 TG1-0100 2010-09-29 Moffett Field none Removed Lab none Removed with the temporary tower from the Moffett Field experiement.
LI-7700 TG1-0100 2010-10-14 Lab none Installed Mayberry Tower The LI7700 was installed on a new tower at the new Mayberry wetlands site.
LI-7700 TG1-0100 2010-10-13 Lab none Calibration Lab none Clibrated in the lab with grade 5.0 ultra pure N2 (40psi to empty) and 1.8978ppm CH4 god bottle (300psi). New fine wire thermocouple installed before calibration. Mirrors cleaned with rubbing alcohol and soft cloth.

Air T=27.9C, P=100.55kPa, RSSI=78%

Zero seemed right on flucuating about 5ppb around zero. I did not set the zero.

The span was a little off reading 1.842ppm about 50ppb short. I set the span.

I checked it with a scondary CH4 standard determined with an LGR at 4.982ppm CH4. The Li7700 read 5.050.
LI-7500A 1594 2010-10-07 Lab none Installed Vaira Gas Analyzer CO2/H2O Installed on Vaira Tower so sn 0418 could be removed for calibration.
LI-7500A 0418 2010-10-07 Vaira Gas Analyzer CO2/H2O Removed Lab none Removed from Vaira Tower for calibration. sn 1594 swapped in.
LI-7500A 0042 2010-10-07 Tonzi-Floor Removed Lab none Removed from the Floor Tower for calibration. sn 0041 installed in place.
LI-7500A 0041 2010-10-07 Lab none Installed Tonzi-Floor Installed on the Floor tower to swap out sn 0042 for calibration.
LI-7500A 0065 2010-10-07 Lab none Installed Tonzi-Tower Installed on tower to swap out cn 0073 for calibration.
LI-7500A 0073 2010-10-13 Lab none Calibration Lab none Calibrated in the lab 100.64kPa, 25.68C, 60% AGC 11.48C Td
Zero Air 0.0 @ 1750psi, CO2 tank 597.4ppm @ 200psi
Last cal 8/13/2010
CO2 zero 0.9580 -> 0.9588 offset +2.7ppm
CO2 span 0.9976 -> 0.9974 offset +0.0ppm
H2O zero 0.7271 -> 0.7319 offset +30.2mmol/m3
H2O span 0.9860 -> 0.9821 offset

SDM address: 7, DAC 1: 0-1000, DAC 2: 10-25

Note: Again, using scrubs on the zero air seemed to introduce more H2O to the system than running without the scrubs. I did not scrub the zero air for this calibration
LI-7500A 0073 2010-10-07 Tonzi-Tower Removed Lab none Removed from the Tonzi tower for calibration in the lab. sn 0065 installed on tower.
FMA RMT-200 08-0114 2009-08-20 Sherman Island Removed Lab none Removed from Sherman Island because seized scroll pump blew fuse in the AC power socket on the back on the LGR.
ESDP30A 983071037 2009-08-25 Lab none Installed Sherman Island Installed at Sherman Island to replace the scroll pump that seized. This pump had 2591.9 hours on it when installed.
LI-7500A 1594 2010-09-29 Moffett Field Removed Lab none Removed with portable tower from the zero flux study at Moffett Field.
WMP 1352 000022 2010-09-29 Moffett Field Removed Lab none Removed with portable tower from the zero flux study at Moffett Field.
FGGA 09-0010 2010-09-29 Moffett Field Removed Lab none Removed with portable tower from the zero flux study at Moffett Field.
HMP45AC U3030041 2010-09-29 Moffett Field Removed Lab none Removed with protable tower at end of zero flux study at Moffett Field.
HMP45AC U3030041 2010-09-23 Lab none Installed Moffett Field Installed on a portable tower at Moffett Field for a zero flux study
CR10X 25799 2010-09-23 Factory Calibration Factory Calibrated at Campbell Sci. Due 23 Sept 2012.
CR10X 25799 2010-09-27 Factory Repair Lab none Returned from Campbell: "Tested, found unit to be corrupted. Load lastest operating system to fix problem. Bench tested. Ran unit in environmental chamber test. Final tested."
LI-7500A 1594 2010-09-23 Lab none Installed Moffett Field This IRGA was installed with a portable tower a Moffett Field for a zero flux study. The center of its path was at 250cm above the ground.
WMP 1352 000022 2010-09-23 Lab none Installed Moffett Field This sonic was installed with a portable tower at Moffett Field for a zero flux study. The center of its measurement path is 250cm above ground and it is oriented to 306 degrees true.
FGGA 09-0010 2010-09-23 Lab none Installed Moffett Field This analyzer was installed with a portable tower at Moffett Field for a week long zero flux study.
CR10X 25799 2010-09-17 Lab none Repair Factory Sent to Campbell Sci for repair.
CR10X 38347 2010-09-22 Factory Disposed Disposed Campbell Sci. reports "due to corrosion damage, this unit is not repairable. Sent back to customer."
CR10X 38347 2010-09-17 Lab none Repair Factory Sent to Campbell Sci on RMA# 12127 for repair
GVSP30 DG002 2010-09-21 Lab none Installed Sherman Island Installed in the box at Sherman Island replacing Frank's diaphragm pump. Sounds real smooth.
FMA RMT-200 08-0114 2009-03-11 Lab none Installed Sherman Island Installed at Sherman tower to replace other LGR for mirror cleaning.
FMA RMT-200 05-0010 2009-03-11 Sherman Island Removed Lab none Removed from the Sherman tower for mirror cleaning.
TR-525I-R1 24875-999 2010-09-09 Lab none Calibration Lab none During the troubleshooting, I ran 16oz (473.3ml) of water through the tipping bucket. According to the manual, this should have resulted in 100 tips. Instead I got 88 tips. I then ran 23.7ml of water that should have resulted in 5 tips and got about 4.5. I then turned the adjustment screws on the bottom two full turns clockwise and got better than five tips. I backed off the screws counter-clockwise a half turn. Now running 473.3ml of water through the tipping bucket results in 99 tips.
TR-525I-R1 24875-999 2010-09-07 Lab none Troubleshooting Lab none Troubleshooting the bad final storage values led to the discovery of a bug in the Campbell program on the data logger. If the Totalize function is burried in a "If time is" function, it doesn't work. The follow instructions do not work.

58: If time is (P92)
1: 0 Minutes (Seconds --) into a
2: 1 Interval (same units as above)
3: 30 Then Do

59: Do (P86)
1: 10 Set Output Flag High (Flag 0)

60: Totalize (P72)^12888
1: 1 Reps
2: 57 Loc [ Precip_mm ]

61: End (P95)

Instead the code should read:

58: If time is (P92)
1: 0 Minutes (Seconds --) into a
2: 1 Interval (same units as above)
3: 10 Then Do

59: Totalize (P72)^12888
1: 1 Reps
2: 57 Loc [ Precip_mm ]
TR-525I-R1 24875-999 2010-09-02 Vaira Precipitation Removed Lab none This tipping bucket was removed from the Vaira tower to troubleshoot a problem that was causing the total number of tips not to be saved in the final storage location.
GVSP30 DG002 2010-09-03 Factory Repair Lab none Returned from factory rebuild. Major kit with bearings, tip seals, pin crank shafts, and crank shaft. From the factory: "The pumps run very hot at 140torr and it's causing some thermal breakdown of the grease and early bearing failure. What we have done is to pack your bearings with grease around an extra 50% by weight and we think this should get you a longer run life between rebuilds. I think we can expect this pump to make the 12 month mark and maybe longer."
FGGA 09-0010 2010-09-07 Lab none Maintenance Lab none This analyzer ran in the lab with no flow in slow flow mode and the cell pressure started close to 138Torr and fell slowly. I replaced the internal 2um filter with no improvement. A high flow of lab bench air through the filter before installing seems to have cleaned the down stream side of the filter and did not foul the mirrors.

I bought a new pressure controller from LGR ($720) and installed it. Cell pressure was 138Torr and holding steady with good flow.

I had to change the linelock v0 value from 0.215 to 0.225 to get CH4 and H2O to lock.
PRB-K Type #8 000000573FAA 2010-09-03 Factory Disposed Disposed Report from vendor not repairable:
s/n 000000573FAA
Condition on arrival: Visual inspection shows only a missing pin (ID pin, which would not affect probe readings) and a very slight separation between epoxy and the plastic probe head. Ctrl ground and RF ground resistance checks fail, diode 2 resistance passes, but both diode 0 and diode 1 lines indicate an open circuit to one diode in each pair. Only 3 of the expected 5 diode waveforms observed in, probe scans fail (only 2 of 4 segments return values).
PR K Type 8 00000FED8688 2010-09-03 Factory Disposed Disposed Report from vendor not repairable:
s/n 00000FED8688
Condition on arrival: cracks in the epoxy of top segment (segment 1), and signs of gaps between rails (segment 1 and segment 3). RF Ground and Ctrl Ground pins open circuit, only diode 2 control line passes resistance checks. No diode waveform from +1 diode board, so only segments 3 and 4 readings seem to be okay.
PRB-K Type #8 000000A6D8356 2010-09-03 Factory Disposed Disposed Report from vendor not repairable:
s/n 00000A6D8356
Condition on arrival: cracks in the epoxy of top segment (segment 1), top part of the probe head plastic is missing, missing a pin (diode 1 control pin). Ctrl Ground pin open circuit, as are all diode control lines. No valid diode waveforms from any of the 5 diode boards. Probe scans fail (all segments return error readings).
PR K Type 8 00000FED7C67 2010-09-03 Factory Disposed Disposed Report from vendor not repairable:
s/n 00000FED7C67
Condition on arrival: several cracks in segment 1, part of one rail partially corroded away. Resistance checks fail(open circuits in RF signal, RF gnd, ctrl gnd and diode pins). No valid diode waveforms from any of the 5 diode boards. No Id reading from probe. Probe scans fail(all segments return error readings).
LAI-2050 PCA-1546 2000-11-08 Factory Calibration Factory Factory calibration, cetificate in case.
LI-7500A 0042 2009-01-29 Lab none Installed Sherman Island Gas Analyzer CO2/H2O Installed on the Sherman tower after lab calibration.
LI-7500A 0035 2009-01-29 Sherman Island Gas Analyzer CO2/H2O Removed Lab none Removed from Sherman tower for calibration.
FGGA 09-0012 2010-04-09 Lab none Returned Returned Returned to Frank Anderson for Twitchell ponds.
FMA RMT-200 08-0114 2010-04-21 Sherman Island Removed Lab none Removed from Sherman becuase of low pressure in slow flow mode.
FMA RMT-200 05-0010 2010-04-21 Lab none Installed Sherman Island This analyzer is fresh from factory service. I installed it to replace sn 08-0114 suffering from low pressure.
LI-7500A 0073 2010-08-14 Lab none Installed Tonzi-Tower Installed on Tonzi Tower by Siyan after lab calibration.