Van Essen Instruments Cera-Diver Data Logger
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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