Application Background
Water quality measurements are performed for water in streams, rivers, lakes and in groundwater systems. There are different parameters that can be measured and used as indicators of water quality, for example electro conductivity (EC), acidity or alkalinity of a solution (pH) or dissolved oxygen (DO). Water depth, electro conductivity and temperature can add valuable insight into water quality. For that purpose DOF6000 Doppler ultrasonic flow meter instrument can be added to a water measurement station.
Application Detail
Lanry instruments supplies a wide range of water measure systems. In the example shown in the illustration, water conductivity, temperature, and water depth, velocity, flow are measured and data stored and wirelessly transmitted by a Remote Logger.
The water conductivity probe for QSD6537 sensor is connected to Conductivity instrument via an SDI-12 bus. The Conductivity instrument runs local scheme to collect conductivity reading every 5 minutes. Remote Logger is set up to collect / log readings from conductivity instrument, hydrostatic depth sensor every hour and to transmit this data to central server every 4 hours.
Ultra-low-power consumption of this system set up is ideal for remote, unattended operation. These instruments and logger will operate for up to 2 years using a small lithium battery package. Installing the Remote Logger enables you to monitor and modify / change data acquisition and check the health of the site, all from a remote location using a web browser anywhere in the world.
The choice of telemetry option would be based on cellular coverage in the measurement area and costs associated with reporting the data back. Satellite services for these applications have reduced in price over the last 5 years, so satellite services are a reasonable option for such measurement stations.
The systems can be powered using lithium battery packs, or a small solar panel and battery. Like all Lanry Instruments systems you can connect many other sensors to the standard system. If water quality measurements are done in relatively shallow waters, QSD6537 doppler flow sensor meter will measure depth of water as well as velocity and rate of flow, combine with DOF6000 caculator, it is ok measure water flow and totalizer.
Post time: May-17-2022