HOBO Water Level (13 ft) Data Logger U20L-04
HOBO U20L-04 adalah Data Logger ketinggian air tingkat penelitian berbiaya rendah untuk terus mengukur ketinggian dan suhu air di berbagai lingkungan bawah air. Ini memiliki akurasi pengukuran 0,1%, rumah polipropilen untuk digunakan di air tawar dan air asin, dan desain tanpa ventilasi untuk pemasangan yang nyaman dan bebas repot.
HOBO Water Level Data logger U20L-04 adalah Alat perekam ketinggian air tingkat penelitian berbiaya rendah untuk terus mengukur ketinggian dan suhu air di berbagai lingkungan air. Alat ini memiliki akurasi pengukuran 0,1%, rumah polipropilen untuk digunakan di air tawar dan air asin, dan desain tanpa ventilasi untuk pemasangan yang nyaman dan bebas repot.
- Water level data logger ini memiliki desain mandiri tanpa ventilasi memungkinkan penyebaran yang mudah
- Ideal untuk digunakan di lingkungan air tawar dan air asin, termasuk sumur, sungai, danau, lahan basah, dan daerah pasang surut
- Kedalaman hingga 13 kaki
- Sensor tekanan keramik tahan lama tahan terhadap pembekuan
- Perangkat lunak HOBOware Pro menyediakan 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 |
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 |
| Â | The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). |
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