Water Level (13 ft) Data Logger- HOBO - U20L-04

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Categories: Data Logger
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Section:Water Level
Seller:    Rayastock

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HOBO U20L-004 adalah data logger tingkat rendah tingkat penelitian untuk mengukur kadar air dan suhu di berbagai lingkungan bawah laut. Ini memiliki akurasi pengukuran 0,1%, pelindung polypropylene untuk digunakan di air tawar dan garam, dan desain non-vented untuk pemasangan yang mudah dan tanpa kerumitan.

 


Pressure (Absolute) and Water Level Measurements U20L-04

  • Operation Range 0 to 145 kPa (0 to 21 psia); approximately 0 to 4 m (0 to 13 ft) of water depth at sea level, or 0 to 7 m (0 to 23 ft) of water at 3,000 m (10,000 ft) of altitude
  • Factory Calibrated Range 69 to 145 kPa (10 to 21 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: ±0.1% FS, 0.4 cm (0.013 ft) water
  • Maximum error: ±0.2% FS, 0.8 cm (0.026 ft) water
  • Raw Pressure Accuracy** ±0.3% FS, 0.43 kPa (0.063 psi) maximum error

 

Resolution  

  • Pressure Response Time (90%)***  
  • 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 in manual
  • Resolution 0.10°C at 25°C (0.18°F at 77°F), see Plot A in manual
  • Response Time (90%) 10 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 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).

 

 

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

  • Desain non-vented mandiri memungkinkan penggelaran yang mudah
  • Ideal untuk digunakan di lingkungan air tawar dan air asin, termasuk sumur, sungai, danau, lahan basah, dan daerah pasang surut
  • Kedalaman sampai 13 kaki
  • Sensor tekanan keramik tahan lama menahan pembekuan
  • Perangkat lunak HOBOware Pro memberikan konversi mudah ke pembacaan tingkat air yang akurat, kompensasi
  • penuh untuk tekanan barometrik (lihat demo), suhu, dan kepadatan air

Catatan: Sertifikat kalibrasi tidak ditawarkan untuk logger ini. Jika Anda memerlukan sertifikat kalibrasi NIST-traceable, lihat U20-001-04 (air tawar) atau U20-001-04-Ti (air asin).