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HOBO U20 Titanium Water Level Data Logger - U20-001-01-Ti

 
 
 

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The HOBO Water Level Titanium is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas. This data logger features high accuracy at a great price and HOBO ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

View how the HOBO Water Level Logger compares to the Competition.

Features:
  • Lightning protection - no long signal wires, and electronics are shielded in stainless steel housing (see the Water Level logger sensor location drawing)
  • HOBOware Pro software provides easy conversion to accurate water level reading, fully compensated for barometric pressure (see demo) temperature, and water density.
  • Multiple-rate sampling (see demo) allows faster sampling at critical times such as when pumping starts or stops.
  • Also available in narrow depth range (U20-001-04-Ti)
  • Ideal for use in wells, streams, lakes, wetlands and tidal areas
  • No-vent-tube design for easy reliable deployment
  • Available in stainless and titanium versions
  • Durable ceramic pressure sensor
Environment:
The U20-001-01-Ti Data Logger is for use in Outdoor and Underwater environments
Measurements:
The U20-001-01-Ti Data Logger supports the following measurements : Water Level
SPECIFICATIONS

Pressure Sensor
Operation range: 0 to 207 kPa (0 to 30 psia); approximately 0 to 9 m (0 to 30 ft) of water depth at sea level, or 0 to 12 m (0 to 40 ft) of water at 3,000 m (10,000 ft) of altitude

Factory calibrated range 69 to 207 kPa (10 to 30 psia), 0° to 40°C (32° to 104°F)

Burst pressure 310 kPa (45 psia) or 18 m (60 ft) depth

Water level accuracy* Typical error - 0.05% FS, 0.5 cm (0.015 ft) water

Maximum error - 0.1% FS, 1.0 cm (0.03 ft) water

Raw pressure accuracy** 0.3% FS, 0.62 kPa (0.09 psi) maximum error

Resolution < 0.02 kPa (0.003 psi), 0.21 cm (0.007 ft) water

Pressure response time 90% < 1 second

Thermal response time (90%)† Approximately 10 minutes in water to achieve full temperature compensation of the pressure sensor
* With accurate reference water level measurement and Barometric Compensation Assistant data ** Absolute pressure sensor accuracy includes all pressure drift, temperature, and hysteresis-induced errors
† Maximum error due to rapid thermal changes is approximately 0.5%

Temperature Sensor
Operation range -20° to 50°C (-4° to 122°F)

Accuracy 0.37°C at 20°C (0.67°F at 68°F), see Plot A

Resolution 0.1°C at 20°C (0.18°F at 68°F) (10-bit), see Plot A

Response time (90%) 3.5 minutes in water (typical)

Stability (drift) 0.1°C (0.18°F) per year

Logger Real-time clock ± 1 minute per month 0° to 50°C (32° to 122°F)

Battery 2/3 AA, 3.6 Volt Lithium, factory-replaceable

Battery life (typical use) 5 years with 1 minute or greater logging interval

Memory (non-volatile) 64K bytes memory (approx. 21,700 pressure and temperature samples)

Dimensions 2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter

Weight Approximately 140 g (4.8 oz)

Wetted materials Titanium, Viton® o-rings, acetyl cap, ceramic sensor 00.511.52-2002040

Temperature (°C)Accuracy/Resolution (°C)AccuracyResolution Plot A

Shock/drop Logger is sensitive to shocks. Handle with care and avoid any impact. Always use proper packaging when shipping the logger.

Logging interval Fixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to 18 hours. Refer to HOBOware software manual.

Launch modes Immediate start and delayed start

Offload modes Offload while logging; stop and offload

Battery indication Battery voltage can be viewed in status screen and optionally logged in datafile. Low battery indication in datafile.

The CE Marking identifies this product as complying with the relevant directives in the European Union (EU).