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HOBO 250-Foot Depth Titanium Salt Water Level Data Logger – U20-001-03-Ti
HOBO 250-Foot Depth Titanium Salt Water Level Data Logger – U20-001-03-Ti
HOBO 250-Foot Depth Titanium Salt Water Level Data Logger – U20-001-03-Ti

HOBO 250-Foot Depth Titanium Salt Water Level Data Logger – U20-001-03-Ti

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◤OVERVIEW

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.

Helpful Links:

Sensor location drawing

Barometric Pressure Compensation Assistant Demo

Multi-rate Sampling Demo

  • Lightning protection – no long signal wires, and electronics are shielded in a titanium housing for saltwater use (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.
  • Available in 4 depth ranges
  • 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
  • 3-point NIST-traceable calibration certificate included


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 U20-001-03-Ti data logger supports the following measurements: Absolute Pressure, Barometric Pressure, Temperature and Water Level

Pressure and Water Level Measurements U20-001-03 and U20-001-03-Ti

  • Operation Range:0 to 850 kPa (0 to 123.3 psia); approximately 0 to 76.5 m (0 to 251 ft) of water depth at sea level, or 0 to 79.5 m (0 to 262 ft) of water at 3,000 m (10,000 ft) of altitude
  • Factory Calibrated Range:69 to 850 kPa (10 to 123.3 psia), 0° to 40°C (32° to 104°F)
  • Burst Pressure:1200 kPa (174 psia) or 112 m (368 ft) depth
  • Water Level Accuracy*:
    。Typical error:±0.05% FS, 3.8 cm (0.125 ft) water
    。Maximum error:±0.1% FS, 7.6 cm (0.25 ft) water
  • Raw Pressure Accuracy**:±0.3% FS, 2.55 kPa (0.37 psi) maximum error
  • Resolution:<0.085 kPa (0.012 psi), 0.87 cm (0.028 ft) water
  • Pressure Response Time (90%)***:<1 second; measurement accuracy also depends on temperature response time
Temperature Measurements (All Models)
  • Operation Range:-20° to 50°C (-4° to 122°F)
  • Accuracy:±0.44°C from 0° to 50°C (±0.79°F from 32° to 122°F), see Plot A in manual
  • Resolution:0.10°C at 25°C (0.18°F at 77°F), see Plot A in manual
  • Response Time (90%):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)
  • Weight:
    。Stainless steel models:approximately 210 g (7.4 oz)
    。Titanium models:approximately 140 g (4.8 oz)
  • Dimensions:2.46 cm (0.97 inches) diameter, 15 cm (5.9 inches) length; mounting hole 6.3 mm (0.25 inches) diameter
  • Wetted Materials:Titanium, Viton® o-rings, acetyl cap, ceramic sensor
  • 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 the 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.
  • Environmental Rating:IP68
  • CE:The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

* Water Level Accuracy:With accurate reference water level measurement, known water density, accurate Barometric Compensation Assistant data, and a stable temperature environment.

** Raw Pressure Accuracy:Absolute pressure sensor accuracy includes all sensor drift, temperature, and hysteresis-induced errors.

*** Changes in Temperature:Allow 10 minutes in water to achieve full temperature compensation of the pressure sensor. Maximum error due to rapid thermal changes is approximately 0.5%.

  • Datasheet|get
  • User's Manual|get