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Water Level Data Logger
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Water Level Data Logger
3m Water Depth Level Data Logger
EUCA Head Office
Clearwater Office Park
Parkhaven, Block H Ground Floor
Boksburg
Gauteng
1459
South Africa
A low-cost, research-grade data logger for continuous monitoring of water level and temperature at depths of up to 13, 30, or 100 feet in a wide range of underwater environments. This logger features 0.1% measurement accuracy, a polypropylene housing for use in both freshwater and saltwater and a non-vented design for convenient and hassle-free deployment.
Requires HOBOware Pro software and either a U-DTW-1 Waterproof Shuttle or the Base-U-4 Optic USB Base Station for configuration and data offload.
Documentation
Data SheetUser Manual
Highlighted Features
- Self-contained, non-vented design enables easy deployment
- Ideal for use in both freshwater and saltwater environments, including wells, streams, lakes, wetlands, and tidal areas
- Depths up to 13, 30, or 100 feet depending on model
- Durable ceramic pressure sensor withstands freezing
- HOBOware Pro software provides easy conversion to accurate water level reading, fully compensated for barometric pressure, temperature, and water density
Specifications
U20L-01
Feature | Specification |
---|---|
Operation Range | 0 to 207 kPa; 0 to 9 m at sea level, 0 to 12 m at 3,000 m altitude |
Factory Calibrated Range | 69 to 207 kPa, 0° to 40°C |
Burst Pressure | 310 kPa or 18 m depth |
Water Level Accuracy | Typical: ±0.1% FS, 1.0 cm; Max: ±0.2% FS, 2.0 cm |
Raw Pressure Accuracy | ±0.3% FS, 0.62 kPa max error |
Resolution | <0.02 kPa water; 0.007 ft water |
Pressure Response Time (90%) | <1 second at stable temperature |
U20L-02
Feature | Specification |
---|---|
Operation Range | 0 to 400 kPa; 0 to 30.6 m at sea level, 0 to 33.6 m at 3,000 m altitude |
Factory Calibrated Range | 69 to 400 kPa, 0° to 40°C |
Burst Pressure | 500 kPa or 40.8 m depth |
Water Level Accuracy | Typical: ±0.1% FS, 3.0 cm; Max: ±0.2% FS, 6.0 cm |
Raw Pressure Accuracy | ±0.3% FS, 1.20 kPa max error |
Resolution | <0.04 kPa; 0.41 cm water |
Pressure Response Time (90%) | <1 second at stable temperature |
U20L-04
Feature | Specification |
---|---|
Operation Range | 0 to 145 kPa; 0 to 4 m at sea level, 0 to 7 m at 3,000 m altitude |
Factory Calibrated Range | 69 to 145 kPa, 0° to 40°C |
Burst Pressure | 310 kPa or 18 m depth |
Water Level Accuracy | Typical: ±0.1% FS, 0.4 cm; Max: ±0.2% FS, 0.8 cm |
Raw Pressure Accuracy | ±0.3% FS, 0.43 kPa max error |
Resolution | <0.014 kPa; 0.14 cm water |
Pressure Response Time (90%) | <1 second at stable temperature |
Temperature Measurements (All Models)
Feature | Specification |
---|---|
Operation Range | -20° to 50°C |
Accuracy | ±0.44°C from 0° to 50°C |
Resolution | 0.10°C at 25°C |
Response Time (90%) | 10 minutes in water |
Stability (Drift) | 0.1°C per year |
Logger and Other Features (All Models)
Feature | Specification |
---|---|
Real-time Clock | ±1 minute per month 0° to 50°C |
Battery | 2/3 AA, 3.6 Volt lithium, factory-replaceable |
Battery Life (Typical Use) | 5 years with 1 min or greater logging interval |
Memory (Non-volatile) | 64K bytes (approx. 21,700 samples) |
Weight | Approx. 154 g in air; 53.9 g in fresh water |
Dimensions | 3.18 cm diameter, 15.24 cm length |
Wetted Materials | Polypropylene, Viton, Buna-N, ceramic, stainless steel |
Logging Interval | Fixed-rate or multiple, up to 8 user-defined intervals |
Launch Modes | Immediate start and delayed start |
Offload Modes | Offload while logging; stop and offload |
Battery Indication | Battery voltage in status screen and optionally logged |
Environmental Rating | IP68 |
Applications
In what environment does this data logger operate?
This data logger operates in outdoor and underwater environments.
What measurements does this data logger support?
The U20L-01 data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Temperature, and Water Level