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U20L04

Alat Perekam Data Ketinggian & Suhu Air (Kedalaman 13 kaki) | HOBO Water Level (13 ft) Data Logger – U20L-04

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Description

HOBO U20L-04 adalah pencatat data ketinggian air kelas riset berbiaya rendah untuk terus-menerus mengukur ketinggian dan suhu air di berbagai lingkungan bawah air. Ini fitur akurasi pengukuran 0,1%, perumahan polypropylene untuk digunakan dalam air segar dan garam, dan desain tanpa ventilasi untuk penggunaan yang nyaman dan bebas repot.

Logger data ini memerlukan U-DTW-1 Waterproof Shuttle atau Base-U-4 Base Station untuk konfigurasi dan pembongkaran data, perangkat lunak HOBOware (unduh gratis). CATATAN: HOBOware Pro diperlukan saat menggunakan Shuttle Tahan Air U-DTW-1. Lihat item yang kompatibel di bawah ini

  • Bentuk yang compact tanpa ventilasi memungkinkan penggunaan yang mudah
  • Ideal untuk digunakan di lingkungan air tawar dan air asin, termasuk sumur, aliran, danau, lahan basah, dan daerah pasang surut
  • Kedalaman hingga 13 kaki
  • Sensor tekanan keramik tahan lama tahan beku
  • Perangkat lunak HOBOware Pro memberikan konversi yang mudah ke pembacaan ketinggian air yang akurat, kompensasi penuh untuk tekanan barometrik (lihat demo), suhu, dan kepadatan air
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 <0.014 kPa (0.002 psi), 0.14 cm (0.005 ft) water
Pressure Response Time (90%)*** <1 second at a stable temperature; measurement accuracy also depends on temperature response time
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.
Environmental Rating: IP68

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