13-Foot Fresh Water Level Data Logger- HOBO - U20-001-04

13-Foot Fresh Water Level Data Logger- HOBO - U20-001-04



Order Catalog

Description

Memantau tingkat air dan suhu di sumur, sungai, danau dan lahan basah (air tawar) dengan 13-foot HOBO Water Level Data Logger. Dengan jarak yang sempit, logger ini memberikan keakuratan terbaik di perairan dangkal. Logger ini memberikan nilai yang bagus dan penyebaran yang mudah karena tidak ada tabung ventilasi atau desiccant yang tidak praktis untuk pemeliharaan. Untuk penyebaran air asin, seperti lahan basah payau dan daerah pasang surut, lihat Titanium Level Air HOBO U20.

Tautan Bermanfaat:
Gambar lokasi sensor
Demo Asisten Kompensasi Tekanan Barometrik
Multi-rate Sampling Demo


Feature

  • Lightning protection - no long signal wires, and electronics are shielded in stainless steel housing for use in freshwater (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

  • Anti petir - tidak ada kabel sinyal yang panjang, dan elektronik terlindung di perumahan stainless steel untuk digunakan di air tawar (lihat gambar lokasi sensor logger Water Level)
  • Perangkat lunak HOBOware Pro memberikan konversi mudah ke pembacaan tingkat air yang akurat, kompensasi penuh untuk tekanan barometrik (lihat demo), dan kepadatan air.
  • Multiple-rate sampling (lihat demo) memungkinkan pengambilan sampel lebih cepat pada saat-saat kritis seperti saat memompa dimulai atau berhenti.
  • Tersedia dalam 4 rentang kedalaman
  • Ideal untuk digunakan di sumur, sungai, danau, lahan basah dan daerah pasang surut
  • Desain no-vent-tube untuk penyebaran yang mudah diandalkan
  • Tersedia dalam versi stainless dan titanium
  • Sensor tekanan keramik tahan lama
  • Sertifikat kalibrasi NIST-traceable 3-point disertakan

Spesification

Pressure and Water Level Measurements U20-001-04 and U20-001-04-Ti
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: ±0.075% FS, 0.3 cm (0.01 ft) water
Maximum error: ±0.15% FS, 0.6 cm (0.02 ft) water
Raw Pressure Accuracy** ±0.3% FS, 0.43 kPa (0.063 psi) maximum error
Resolution  
Pressure Response Time (90%)***  
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 316 stainless steel, 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.
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 10 minutes in water to achieve full temperature compensation of the pressure sensor. Maximum error due to rapid thermal changes is approximately 0.5%