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HOBO 13-Foot Water Level Data Logger
HOBO 13-Foot Water Level Data Logger - Gambar 2
HOBO 13-Foot Water Level Data Logger

HOBO 13-Foot Water Level Data Logger

Overview

Logger ini dirancang dengan rentang sempit untuk akurasi tinggi di perairan dangkal. Mudah dipasang tanpa vent tube atau desiccant, serta mampu merekam level air dan suhu hingga kedalaman 13 ft pada sumur dangkal, sungai, danau, lahan basah air tawar (stainless steel), serta area air asin atau pasang surut (titanium).

Features

  • Perlindungan petir dengan housing logam dan tanpa kabel sinyal panjang
  • Software HOBOware Pro untuk konversi data level air yang akurat (kompensasi tekanan barometrik, suhu, dan densitas air)
  • Sampling multi-rate untuk pemantauan lebih cepat saat kondisi kritis
  • Sensor tekanan keramik yang tahan lama
  • Sertifikat kalibrasi 3 titik standar NIST tersedia
Hubungi Kami

Series

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
0.6 cm (0.02 ft) water”
Typical error: ±0.075% FS, 0.3 cm (0.01 ft) water
Maximum error: ±0.15% FS
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; measurement accuracy also depends on temperature response time

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.
Environmental Rating IP68

Notes

* 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%.

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