Equipment and Calibration History
History for Campbell Sci. CS451 70011234
| Rec No. | Date | Loc From | Title | Loc To | Notes |
|---|---|---|---|---|---|
| 7035 | 2024-11-20 | Lab none | Tested | Lab none | Ran overnight in the lab and confirmed it is working. The outside cable has many cracks and the pigtail leads are shorter than usual, so the power wires probably have to be connected to the datalogger instead of a power strip so that the Data wire can still reach the C port. 15' cable. |
| 6388 | 2023-08-24 | Bouldin Corn Water Level | Removed | Lab none | Removed from Bouldin Corn because its cable is short. Replaced by sn 20010770. |
| 4792 | 2020-09-01 | Bouldin Corn Water Level | Moved | Bouldin Corn none | Moved tower and soil sensors back from field in preparation for corn harvest. Joe dug a new well east of the tower for the water level sensor. Sensor is 69 cm below ground.
Top of pipe to ground = 58 cm Top of pipe to sensor = 127 cm Well depth ~ 160 cm (dry at bottom) |
| 4665 | 2020-08-05 | Bouldin Corn Water Level | Notes | Bouldin Corn Water Level | Measured with a tape measure
Top of well to ground = 47 cm Top of well to water surface = 69 cm Water level reading = 0.99 psi ~ 70 cm |
| 4649 | 2020-05-19 | Bouldin Corn Water Level | Moved | Bouldin Corn Water Level | Dug new well after moving tower into corn field. Sensor is 91cm below ground level.
Water level from top of well = 131 cm (4.3’) Top of well to ground = 47 cm Top of well to sensor = 138 cm Sensor psi reading = 0.12 psi ~ 8 cm (checks out with physical measurement!) |
| 4294 | 2019-12-13 | Lab none | Installed | Bouldin Corn Water Level | Re-installed at Bouldin Corn after re-assembling tower. Sensor is 91cm below ground level.
Top of well to ground = 47 cm Top of well to sensor = 138 cm Top of well to water level = 131 cm (4.3’) Sensor psi reading = 0.12 psi ~ 8 cm (consistent with physical measurement) |
| 4261 | 2019-12-02 | Bouldin Corn Water Level | Removed | Lab none | Removed from Bouldin Corn site and brought back to the lab after the tower fell down during a rain/wind storm on 2019-11-26. |
| 3924 | 2019-04-11 | Lab none | Installed | Bouldin Corn Water Level | Installed in a well underneath the BC tower. Sensor is 92cm below ground level. From field notes:
Top of pipe to ground = 25cm Top of pipe to sensor = 117cm Top of pipe to water = 85cm Sensor reading = 0.46 psi ~ 32cm (matches manual reading) |
| 3985 | 2018-12-10 | Lab none | Tested | Lab none | Tested in both air and water in the lab and saw an offset of about +0.975 cm. See RT report "Pressure transducer comparison 12-2018." |
| 2888 | 2017-06-23 | Sherman Wetland Water Level | Removed | Lab none | Removed from the Sherman Wetland site due to NaNs in the data stream. |
| 2293 | 2016-05-24 | Lab none | Installed | Sherman Wetland Water Level | Installed on the Sherman Wetland tower at the initial set up of the site. |
| 1966 | 2015-09-04 | Factory | Calibration | Factory | Initial factory calibration. Recommended interval: 2 years of service. |