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 flowcell past a multiparameter probe in order to make readings automatically. Data is then sent via mobile networks to 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 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 as standard. 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.
detailed view of the sophisticated controller box that features 2 micro processors and direct pumping controls
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.
Timeview screen shows historic traces for each of the sensors installed on the AP-7000
| Dissolved Oxygen | Range | 0 – 500.0% / 0 – 50.00 mg/L |
| Resolution | 0.1% / 0.01mg/L | |
| Accuracy | 0 – 200%: ± 1% of reading. 200% – 500%: ± 10% | |
| Conductivity (EC) | Range | 0 – 200 mS/cm (0 – 200,000 µS/cm) |
| Resolution | 3 Auto-range scales: 0 – 9999 µS/cm, 10.00 – 99.99 mS/cm, 100.0 – 200.0mS/cm | |
| Accuracy | ± 1% of reading | |
| TDS* | Range | 0 – 100,000 mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0 – 9999mg/L, 10.00 – 100.00g/L | |
| Accuracy | ± 1% of reading | |
| Resistivity* | Range | 5 Ωcm – 1 MΩcm |
| Resolution | 2 Auto-range scales: 5 – 9999 Ωcm, 10.0 – 1000.0 KΩcm | |
| Accuracy | ± 1% of reading | |
| Salinity* | Range | 0 – 70 PSU / 0 – 70.00 ppt (g/Kg) |
| Resolution | 0.01 PSU / 0.01 ppt | |
| Accuracy | ± 1% of reading | |
| Seawater Specific Gravity* | Range | 0 – 50 st |
| Resolution | 0.1 st | |
| Accuracy | ± 1.0 st | |
| pH | Range | 0 – 14 pH / ± 625mV |
| Resolution | 0.01 pH / ± 0.1mV | |
| Accuracy | ± 0.1 pH / ± 5mV | |
| ORP | Range | ± 2000mV |
| Resolution | 0.1mV | |
| Accuracy | ± 5mV | |
| Temperature | Range | -5°C – +50°C (23°F – 122°F) |
| Resolution | 0.01° C/F | |
| Accuracy | ± 0.5° C |
| Depth ** | Range | 0-60m (AP-2000 & AP-5000), 0 – 100m (AP-7000) |
| Resolution | 0.01m | |
| Accuracy | ±0.5% FS (AP-2000 & AP-5000), ±0.2%FS (AP-7000) | |
| **Option on the AP-2000. Comes as standard on the AP-5000 & AP-7000 | ||
| Ammonium | Range | 0 – 9,000mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0.00 – 99.99 mg/L, 100.0 – 9,000 mg/L | |
| Accuracy | ± 10% of reading | |
| Ammonia† | Range | 0 – 9,000mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0.00 – 99.99 mg/L, 100.0 – 9,000 mg/L | |
| Accuracy | ± 10% of reading | |
| Chloride | Range | 0 – 20,000mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0.00 – 99.99 mg/L, 100.0 – 20,000 mg/L | |
| Accuracy | ± 10% of reading | |
| Flouride | Range | 0 – 1,000mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0.00 – 99.99 mg/L, 100.0 – 999.9 mg/L | |
| Accuracy | ± 10% of reading | |
| Nitrate | Range | 0 – 30,000mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0.00 – 99.99 mg/L, 100.0 – 30,000 mg/L | |
| Accuracy | ± 10% of reading | |
| Calcium | Range | 0 – 2,000mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0.00 – 99.99 mg/L, 100.0 – 2,000 mg/L | |
| Accuracy | ± 10% of reading | |
| † Ammonium electrode required. Readings calculated from Ammonium, pH and temperature electrode values. | ||
| Turbidity | Range | 0 – 3000 NTU |
| Resolution | 2 Auto-range scales: 0.0 99.9 NTU, 100 – 3000 NTU | |
| Repeatability | ± 2% of reading | |
| Chlorophyll | Range | 0 – 500 µg/L (ppb) |
| Resolution | 0.01 µg/L | |
| Repeatability | ± 2% of reading | |
| Phycocyanin (Freshwater Blue-Green Algae) | Range | 0 – 300,000 cells/mL |
| Resolution | 1 cell/mL | |
| Repeatability | ± 2% of reading | |
| Phycoerythrin (Marine Blue-Green Algae) | Range | 0 – 200,000 cells/mL |
| Resolution | 1 cell/mL | |
| Repeatability | ± 2% of reading | |
| Rhodamine WT Dye | Range | 0 – 500 µg/L (ppb) |
| Resolution | 0.01 µg/L | |
| Repeatability | ± 5% of reading | |
| Fluorescein Dye | Range | 0 – 500 µg/L (ppb) |
| Resolution | 0.01 µg/L | |
| Repeatability | ± 5% of reading | |
| Refined Oil | Range | 0 – 10,000 µg/L (ppb) |
| Resolution | 0.1 µg/L | |
| Repeatability | ± 2% of reading | |
| CDOM/FDOM | Range | 0 – 2,000mg/L (ppm) |
| Resolution | 2 Auto-range scales: 0.00 – 99.99 mg/L, 100.0 – 2,000mg/L |
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| Repeatability | ± 10% of reading or 2ppm (whichever is greater) |
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