Water/Wastewater

Remote Water Quality Monitoring made Hassle Free

Aug 06 2014

Author: Chris Peacock on behalf of Aquaread Limited

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The AquaStation independent monitoring station is a breakthrough in remote water quality monitoring. The AquaStation is able to independently collect data, keep its sensors clear of fouling, and calibrate its sensors remotely via its built in telemetry system.

Water quality monitoring in remote and isolated locations can be an expensive task. At its most basic form, an engineer is required to visit the site and manually monitor the water using a multiparameter water monitoring probe such as the Aquaread AP-5000. This is a costly approach due to the frequent site visits and constant traveling required.

A more advanced option is to install a self contained water monitoring station that pumps water into a flow cell across a multiparameter probe in order to take readings automatically. Data is then sent via mobile networks and can be viewed from your desk on a PC over the Internet. This approach does reduce the number of site visits required for taking measurements, but regular site visits are still required in order to clean and calibrate
the water monitoring probes.

The AquaStation takes a large step in further reducing the number of site visits required by utilising a self cleaning probe and, more importantly, by allowing users to command individual sensor calibration from their desk via the built in telemetry system.

The AquaStation can be left monitoring whilst unattended for many months, without the need for regular cleaning and calibration. Regular automatic cleaning and calibration keeps the system recording accurately for longer than was previously possible.

Monitoring parameters such as ammonium or nitrate remotely was, until now, unfeasible because these sensors are liable to drift and require fortnightly calibrations. The ability of the AquaStation to hold calibration solution, pump it into the flow cell and calibrate the sensor without anyone on site means that using ISE electrodes in a remote monitoring station is now a reality. 

Power is not an issue for the AquaStation thanks to the 12V, 115Ah battery that’s installed in the unit; in addition, the battery is kept topped up using solar or wind power meaning you should never have to charge the battery.

System features

• Fully automatic remote water quality analysis

• Self contained and self powered (solar / wind)

• Self-calibrating

• Self cleaning

• User configurable sampling times, cleaning intensity and calibration frequency

• Analysis results viewable 24/7 on line from any location

• Low maintenance

• Long, unattended deployment

• Various sample pump options to suit all applications

• Various telemetry options

• Configurable alarms with user-specified set points generate Email or SMS alerts

• Live data available on site with built-in Aquameter

• Measurement of up to 16 individual parameters simultaneously

• Secure, weatherproof, lockable enclosure

The water monitoring is taken care of by the self cleaning AP-7000 Aquaprobe. The probe can measure up to 16 parameters at once - providing a staggering amount of information. The probe’s basic sensor layout offers optical dissolved oxygen, pH, ORP, conductivity, resistivity, salinity, TDS, SSG, and temperature. The Aquaprobe then has 6 user configurable sensor ports that allow you to install any combination of our optical or ionic sensors, such as turbidity, chlorophyll, ammonium and nitrate to name a few.

Viewing the data is very straightforward. Data collected by the probe is sent via GPRS/3G to a secure server; it can then be accessed via Timeview online. This web-based application displays all of the data at a glance and allows you to drill down on each sensor’s trace with increasing control and detail.
This helpful application allows users to re-configure their logging intervals as they see fit as well as setting up alarm trigger points which can automatically increase logging rates and send out notifications as both email and sms. 
The AquaStation is set to revolutionise remote water quality monitoring by further increasing the duration of unmanned deployments thanks to its automated probe cleaning and, most importantly, its ability to be calibrated via the Internet automatically or by a user. 

Reducing site visits means reduced costs for any company looking to streamline their remote water monitoring monitoring régime. With a host of different pump and deployment options the AquaStation is suitable for many different applications and deployment locations.

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