Online Trace Metal Monitoring Systems
Automated Trace Metal Monitoring - OVA7000
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Fully Automated On-Line monitoring is possible with our OVA7000, OVA7000 Dual Cell and OVA5000 Trace / Heavy Metal Analyser systems. These fully automated on-line metal monitors enables municipalities, industries and environmental agencies to continuously determine the levels of trace metals in process streams, effluent discharges, rivers and potable water. The OVA7000 has a built in PC, which can be controlled by a computer connected via Wi-Fi or LAN. This external control prevents unauthorised users from making any changes. The Analyser system is housed in a modular cabinet with a seperate reagent cabinet. The OVA7000 Analyzer system runs on low power 12V DC (or standard 90 - 260V AC), making it the ideal solution for remote locations.
Process ExplainedIn Voltammetry metals are drawn onto the working electrode when a specific voltage is applied to the water sample under test. When a stripping voltage is applied, the metals return to the sample solution, generating a small current. Eash metal has a specific voltage at which it returns to solution. So the metal is identified by its stripping boltage and the current generated indicates the concentration of metal in the sample.
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Limits of Detection
Metal |
Metal Name |
Detection |
| Ag | Silver | 5 μg/L |
| As (III) | Arsenic (III) | 10 μg/L |
| As (Total) | Arsenic | 2 μg/L |
| Au | Gold | 5 μg/L |
| Cd | Cadmium | 0.5 μg/L |
| Co | Cobalt | 10 μg/L |
| Cr (VI) | Chromium (VI) | 10 μg/L |
| Cr (Total) | Total Chromium | 10 μg/L |
| Cu | Copper | 1 μg/L |
| Fe | Iron | 10 μg/L |
| Hg | Mercury |
0.5 μg/L |
| Mn |
Manganese | 5 μg/L |
| Mo | Molybdenum | 1 μg/L |
| Ni | Nickel | 5 μg/L |
| Pb | Lead | 1 μg/L |
| Pd | Palladium | 5 μg/L |
| Sb (III) | Antimony (III) | 5 μg/L |
| Se (IV) | Selenium (IV) | 10 μg/L |
| Sn | Tin | 5 μg/L |
| Te | Tellurium | 10 μg/L |
| Tl | Thallium | 2 μg/L |
| U | Uranium | 5 μg/L |
| Zn | Zinc | 2 μg/L |