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Data Logger Nivel de Agua Onset HOBO U20L

Cód: ONSE-U20L-04

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Colecciones: Equipo, Equipo para Estudio de Agua Dulce (Limnología)

Tipo: Equipo

Fabricante / Editorial: Onset

HOBO U20L Series Water Level loggers set a new price/performance standard for water level and temperature monitoring. The loggers combine 0.1% measurement accuracy, a rugged enclosure, and a non-vented design for convenient deployment.

Self-contained, non-vented design
Ideal for use in both fresh and saltwater environments
Durable ceramic pressure sensor
Ideal for wells, streams, lakes, wetlands and tidal areas

  • Pressure (Absolute) and Water Level Measurements U20L-02
    Operation Range 0 to 400 kPa (0 to 58 psia); approximately 0 to 30.6 m (0 to 100 ft) of water depth at sea level, or 0 to 33.6 m (0 to 111 ft) of water at
    3,000 m (10,000 ft) of altitude
    Factory Calibrated Range 69 to 400 kPa (10 to 58 psia), 0° to 40°C (32° to 104°F)
    Burst Pressure 500 kPa (72.5 psia) or 40.8 m (134 ft) depth
    Water Level Accuracy* Typical error: ±0.1% FS, 3.0 cm (0.1 ft) water
    Maximum error: ±0.2% FS, 6.0 cm (0.2 ft) water
    Raw Pressure Accuracy** ±0.3% FS, 1.20 kPa (0.17 psi) maximum error
    Resolution <0.04 kpa="" 0="" 006="" psi="" 41="" cm="" 013="" ft="" water="" td="">
    Pressure Response Time (90%)*** <1 second="" at="" a="" stable="" temperature="" measurement="" accuracy="" also="" depends="" on="" response="" time="" td="">
    Temperature Measurements
    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
    Resolution 0.10°C at 25°C (0.18°F at 77°F), see Plot A
    Response Time (90%) 10 minutes in water (typical)
    Stability (Drift) 0.1°C (0.18°F) per year
    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 Approximately 154 g (5.43 oz) in air Approximately 53.9 g (1.9 oz) in fresh water
    Dimensions 3.18 cm (1.25 inches) diameter, 15.24 cm (6.0 inches) length; mounting hole 6.3 mm (0.25 inches) diameter
    Wetted Materials Polypropylene housing and lanyard; Viton and Buna-N O-rings; ceramic sensor in acetyl end cap; stainless steel screws suitable for saltwater
    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 User’s Guide for details.
    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.
    CE Compliant The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).
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