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Title: Evaluation of a YSI-6000 submersible water quality monitor
Author: A.J. Chappell
Author: C.J. Wright
Document Type: Monograph
This report describes the evaluation of a YSI6000 water quality logger. It is designed for field use in fresh or saline water to measure dissolved oxygen, temperature, ph, conductivity, and depth. It also has locations available for other sensors which may be developed. The instrument failed during the tests and needed to be repaired due to a failure of components on the main circuit board. There was no flow effect found for the D/0, temperature, and conductivity, sensors. A minor flow effect-was found on the pH"sensor of 0.2 units. Temperature changes affected the D/0 sensor by 0.35% per *C. The depth sensor was also affected by temperature. The instrument was susceptible to ground loop interference which caused large errors when connected to an earthed computer. YSI are developing an optical isolation system however this was not tested. As with all field instruments careful maintenance and calibration is required before deployment in order to obtain accurate readings.
Publisher: National Rivers Authority
Publication Date: 1995
Publication Place: Bristol
Subject Keywords: Water qualityDataloggersEquipment testingPerformance testingWater monitoring
Extent: 30
Total file downloads: 0

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