Equipment and Calibration

Equipment Entry

Instrument:	Fluorometer
Manufacture:	YSI
Model No:	EXO fDOM
Serial No:	22E100649
Tag No:
Acquisition Date:	2022-06-01
Project:	Ducks-Hill Slough
Location on 2024-09-09:	Lab,
Notes:	Bare fluorescent dissolved organic matter sensor to be installed in USGS EXO Sonde at Gilbert Tract. 0 to 300 ppb Quinine Sulfate equivalent (QSE) measurement range 0.01 ppb QSE resolution T63<2 sec response time

Documents

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History

Rec No.	Date	Loc From	Title	Loc To	Notes
6844	2024-09-09	Factory none	Received	Lab none	Received back from YSI. Their report: REPORTED SYMPTOM: EVALUATION/TEST/CONSISTENT RED QC SCORE. DETECTED A FILM ON FACE OF THE SENSOR. CLEANED SENSOR WITH ALCOHOL AND REMOVED MOST OF THE FILM. CALIBRATED THE SENSOR WITH A YELLOW QC SCORE. NO REPLACEMENT WILL BE LABOR. CUSTOMER DIDN'T WANT TO REPLACE SENSOR. TEST AND CALIBRATE PROBE: PASS READS 228.09 UNCAL QSU 300 CALIBRATED TO 300QSU READS 76.08 UNCAL 100 RFU CALIBRATED TO 100 RFU FIRMWARE LATEST REVISION: PASS FINAL TESTED, MEETS YSI SPECS EXO fDOM PROBE SN# 22E100649
6845	2024-08-31	Factory none	Calibration	Factory none	fDOM (QSU and RFU), Last cal: EXO sn 17J100000 EXO/Sensor Firmware: 1.0.86/3.0.0 ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 QSU,1.34 QSU,0.01 QSU,0.00 QSU,22.951 °C Pt2,300.00 QSU,228.09 QSU,300.00 QSU,0.00 QSU,22.312 °C Notes: Factory calibration ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 RFU,0.35 RFU,0.00 RFU,0.00 RFU,23.107 °C Pt2,100.0 RFU,RFU,76.08 RFU,100.00 RFU,0.00 RFU,22.281 °C Notes: Factory calibration
6843	2024-08-06	Lab none	Shipped	Factory none	Shipped back to YSI for inspection and repair
6786	2024-07-21	Lab none	Calibration	Lab none	fDOM (QSU and RFU), Last cal: 2024-04-08 EXO sn 22C103416 EXO/Sensor Firmware: 1.0.86/3.0.0 ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 QSU,-0.72 QSU,-0.01 QSU,0.00 QSU,22.62 °C Pt2,300.00 QSU,164.59 QSU,300.03 QSU,0.00 QSU,21.826 °C Notes: Fresh calib solution but sensor is way off. Probably send back to factory. ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 RFU,-.33 RFU,0.00 RFU,0.00 RFU,21.804 °C Pt2,100.0 RFU,RFU,34.39 RFU,100.00 RFU,0.00 RFU,21.927 °C Notes: Fresh calib solution but sensor is way off. Probably send back to factory.
6766	2024-07-16	Hill Slough fDOM	Removed	Lab none	Removed from the HS channel and brought back to the lab for routine calibration
6649	2024-04-10	Lab none	Installed	Hill Slough fDOM	Reinstalled at the HS channel after regular lab cleaning and calibration
6667	2024-04-08	Lab none	Calibration	Lab none	fDOM (QSU and RFU), Last cal: 2024-01-23 EXO sn 22C103416 EXO/Sensor Firmware: 1.0.86/3.0.0 ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 QSU,-0.54 QSU,0.00 QSU,0.00 QSU,22.695 °C Pt2,300.00 QSU,132.47 QSU,300.02 QSU,0.00 QSU,22.144 °C Notes: Fresh calibration solution but pre-cal value is still way off. Maybe because of a dirty/cloudy sensor. This sensor probably needs to go back to the factory. ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 RFU,-.31 RFU,0.00 RFU,0.00 RFU,22.796 °C Pt2,100.0 RFU,RFU,41.74 RFU,100.00 RFU,0.00 RFU,22.184 °C Notes: Fresh calibration solution but pre-cal value is still way off. Maybe because of a dirty/cloudy sensor. This sensor probably needs to go back to the factory.
6641	2024-04-04	Hill Slough fDOM	Removed	Lab none	Removed from the Hill Slough channel and brought back to the lab for calibration (and to install the new auto wiper that arrived)
6619	2024-01-25	Lab none	Installed	Hill Slough fDOM	Installed in the Hill Slough channel after calibration
6547	2024-01-23	Lab none	Calibration	Lab none	fDOM (QSU and RFU), Last cal: 2023-08-17 EXO sn 22C103416 EXO/Sensor Firmware: 1.0.86/3.0.0 ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 QSU,-2.68 QSU,0.00 QSU,0.00 QSU,20.692 °C Pt2,300.00 QSU,182.33 QSU,300.08 QSU,0.00 QSU,21,776 °C Notes: Fresh calibration solution after a factory reset. Previous calibration attempts in the last few days were all really off. Keep an eye on this sensor. ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 RFU,0.24 RFU,0.00 RFU,0.00 RFU,20.081 °C Pt2,100.0 RFU,RFU,122.16 RFU,100.05 RFU,0.00 RFU,22.019 °C Notes: Fresh calibration solution after a factory reset
6544	2024-01-18	Hill Slough fDOM	Removed	Lab none	Removed from HS channel and brought back to the lab for routine calibration
6448	2023-10-18	Lab none	Installed	Hill Slough fDOM	Installed in the Hill Slough channel after calibration in the lab. The whole sonde was raised about 20cm to keep it out of the mud.
6439	2023-10-11	Hill Slough fDOM	Removed	Lab none	Removed for inspection in the lab because turbidy/fDOM/ph/ORP look weird
6392	2023-08-24	Lab none	Installed	Hill Slough fDOM	Reinstalled after quarterly cleaning and calibration
6376	2023-08-17	Lab none	Calibration	Lab none	fDOM (QSU and RFU), Last cal: 5/8/2023 14:55:21 EXO sn 22C103416 EXO/Sensor Firmware: 1.0.86/3.0.0 ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 QSU,-0.29 QSU,00.01 QSU,0.00 QSU,24.006 °C Pt2,297.97 QSU,316.12 QSU,297.95 QSU,0.00 QSU,24.617 °C ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 RFU,-0.74 RFU,0.00 RFU,0.00 RFU,24.666 °C Pt2,99.40 RFU,96.56 RFU,99.39 RFU,0.00 RFU,24.827 °C
6368	2023-05-09	Lab none	Installed	Hill Slough fDOM	Installed in the channel at Hill Slough (same height as before) after calibration
6277	2023-04-25	Hill Slough fDOM	Removed	Lab none	Removed from HS channel for routine calibration
6153	2023-01-06	Lab none	Installed	Hill Slough fDOM	Installed in the channel at Hill Slough (same height as before) after calibrating in the lab yesterday.
6148	2023-01-03	Hill Slough fDOM	Removed	Lab none	Removed from Hill Slough channel and brought back to the lab for calibration.
6014	2022-09-29	Lab none	Installed	Hill Slough fDOM Channel	Installed as part of the EXO2 sonde in the channel at Hill Slough.
6054	2022-09-23	Lab none	Calibration	Lab none	fDOM (QSU and RFU), Last cal: Unknown EXO sn 22C103416 EXO/Sensor Firmware: 1.0.86/3.0.0 ,Standard,PreCal,PostCal,RawValue,Temp Pt1,0.00 QSU,-1.65 QSU,0.00 QSU,0.00 QSU,25.000 °C Pt2,308.00 QSU,301.85 QSU,307.99 QSU,0.00 QSU,15.000 °C ,Standard,PreCal,PostCal,RawValue,Temp Pt1,103.00 RFU,98.95 RFU,103.00 RFU,0.00 RFU,15.000 °C Pt2,0.00 RFU,-0.68 RFU,0.00 RFU,0.00 RFU,25.000 °C
6011	2022-09-16	Hill Slough fDOM Channel	Removed	Lab none	Removed as part of the EXO2 channel deployed in the channel at HS. Brought back to the lab for cleaning and calibration.
6008	2022-07-13	Lab none	Installed	Hill Slough fDOM Channel	Installed as part of the EXO2 sonde at HS in the channel off of the boardwalk, about 30m east of the tower.