
Levelogger 5, Full Scale 30m (98.4 ft)
The Levelogger 5 records highly accurate groundwater and surface water level and temperature measurements. It combines a pressure sensor, temperature detector, 10-year lithium battery, and datalogger, sealed within a 22 mm x 160 mm (7/8" x 6.3") stainless steel housing with a corrosion-resistant coating baked-on using polymerization technology. The Levelogger 5 measures absolute pressure using a Hastelloy pressure sensor, offering high resolution and an accuracy of 0.05% FS. Readings are stable in extreme pressure and temperature conditions. The Hastelloy sensor can withstand 2 times over-pressure without permanent damage. Combined with the durable coating inside and out, the Levelogger 5 has high corrosion and abrasion resistance in harsh environments. The Levelogger 5 uses a Faraday cage design, which protects against power surges or electrical spikes caused by lightning. Its durable maintenance-free design, high accuracy and stability, make the Levelogger 5 the most reliable instrument for long-term, continuous water level recording.
Features
- Highly stable communication: single-eye optical interface-easier to clean, more scratch resistant
- Large memory: 150,000 sets of data
- Strong, robust design: double o-ring seals for increased leakage protection
- High thermistor sensitivity: accurate platinum RTD
- Superior protection in harsh environments: corrosion and abrasion resistant coating-inside and out
- Intuitive Levelogger Software: Diagnostic Utility for more proactive user "self-tests"
Applications
- Aquifer characterization: pumping tests, slug tests, etc.
- Watershed, drainage basin and recharge monitoring
- Stream gauging, lake and reservoir management
- Harbour and tidal fluctuation measurement
- Wetlands and stormwater run-off monitoring
- Water supply and tank level measurement
- Mine water and landfill leachate management
- Long-term water level monitoring in wells, surface water bodies and seawater environments
- Specification Sheet
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| Level Sensor | Piezoresistive Silicon with Hastelloy Sensor |
| Accuracy | +- 1.5 cm (0.064 ft.) |
| Stability of Readings | Superior, low noise |
| Resolution | 0.0006% FS |
| Units of Measure | (Barologger 5: psi, kPa, mbar, °C, °F) |
| Normalization | Automatic Temperature Compensation |
| Temp. Comp. Range | 0° to 50°C (Barologger 5: -10 to +50°C) |
| Temperature Sensor | Platinum Resistance Temperature Detector (RTD) |
| Temp. Sensor Accuracy | +- 0.05°C |
| Temp. Sensor Resolution | 0.003°C |
| Battery Life | 10 Years - based on 1 reading/minute |
| Clock Accuracy (typical) | +- 1 minute/year (-20°C to 80°C) |
| Operating Temperature | -20°C to 80°C |
| Maximum # Readings | 150,000 sets of readings |
| Memory Mode | Slate and Continuous |
| Communication | Optical high-speed: USB, SDI-12 57,600 bps with USB |
| Size | 22 mm x 160 mm (7/8" x 6.3") |
| Weight | 146 grams (5.2 oz) |
| Corrosion Resistance | Baked-on coating using polymerization technology (inside and out) |
| Other Wetted Materials | Delrin®, Viton®, 316L stainless steel, Hastelloy, PFAS-free PTFE coating |
| Sampling Modes | Linear, Event & User-Selectable with Repeat Mode, Future Start, Future Stop, Real-Time View |
| Measurement Rates | 1/8 sec to 99 hrs |
| Barometric Compensation | Software Wizard and one Barologger 5 in local area (approx. 30 km/20 miles radius) |
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