Van Essen Instruments Cera-Diver Data Logger

The Cera-Diver is a rugged, corrosion proof groundwater datalogger. Monitoring groundwater under potentially corrosive conditions, such as brackish water and seawater, requires a robust and durable datalogger. The ceramic-shelled Cera-Diver is designed specifically for such environments. This highly reliable and compact Diver measures groundwater levels with a typlical accuracy of ±0.05% full scale. In addition to its rugged casing, the Cera-Diver's memory capacity cann store up to 48,000 measurements (date/time, pressure, and temperature) - almost one measurement every ten minutes for an entire year. The Cera-Diver has the following sample methods: fixed length intervals, event-dependent, averaging, and pumping tests. The Cera-Diver is available in th efollowing pressure ranges: 10 m, 20 m, 50 m, and 100m. Features & Benefits Click here to learn more about the product. Features Innovative ceramic housing technology Compact size: Ø 22 mm – length 90 mm Various measurement methods 48,000 records of time stamp, pressure and temperature 30-Point Pressure Factory Calibration Benefits Corrosion proof Easy installation in almost every well Event based, averaging and pumping tests sample methods to conserve memory Cost effective frequent, long-term measuring Reliable and accurate data Applications Click here to view product applications. Saltwater intrusion projects Leachate monitoring at landfill sites Monitoring groundwater and surface water Monitoring stored brines and reclaimed waste water Estuary and wetlands monitoring Groundwater monitoring network automation Aquifer storage and recovery projects Groundwater monitoring projects Mining: Tailings Environmental Slope stability Key Specifications Click here to view product specifications. General Length 90 mm Diameter 22 mm Memory 48,000 measurements Housing ceramic (ZrO2) Weight 50 grams Battery life 10 years (dependent on usage) Sample interval 0.5 second to 99 hours Sample methods fixed, event dependent, averaging, and pumping test Pressure Part No DI701 DI702 DI705 DI710 Unit Range 10 20 50 100 meter Accuracy* ±0.5 ±1.0 ±2.5 ±5.0 cmH2O Resolution 0.2 0.4 1.0 2.0 cmH2O Temperature Value Unit Range 20 .. +80 °C Accuracy* ±0.1 °C Resolution 0.01 °C *typical, see product manual for full technical specification