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Automated self-calibrating water quality monitoring sensor housing assembly

  • US 6,936,156 B2
  • Filed: 08/30/2001
  • Issued: 08/30/2005
  • Est. Priority Date: 08/30/2001
  • Status: Expired due to Fees
First Claim
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1. An automated process for monitoring water quality comprising:

  • providing a system for monitoring water quality, the system comprising a plurality of ion-selective electrodes and probes combined in a single flow train for multi-constituent analysis of a plurality of samples and a recirculation pump for optionally recirculating samples and reagents;

    rinsing and gas purging the system for monitoring water quality;

    self-testing and calibrating the probes;

    recording calibration data;

    rinsing and gas purging the system;

    optionally notifying an operator of the system if the operational parameters of the probes do not meet prespecified criteria;

    introducing sample to be tested into the system;

    optionally adding buffer or ionic-strength adjusting solution to the probes;

    monitoring water quality by measuring the analytes in the sample with the probes;

    recording the measurements;

    optionally conducting a second measuring step adding appropriate solution to dilute the sample in the probes or create a spike, measuring the analytes to be determined in the sample, and recording the water-quality measurement;

    optionally recalibrating the system after a number of samples are measured to detect drift of probe calibration parameters; and

    producing or transmitting a computer file to record the results of the monitoring process.

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