Alat Perekam Data Ketinggian Air Tawar (Kedalaman 13 kaki) | HOBO 13-Foot Fresh Water Level Data Logger – U20-001-04

Description

Pantau ketinggian dan suhu air di sumur, aliran, danau, dan lahan basah (air tawar) dengan 13-foot HOBO Water Level Data Logger ini. Dengan jarak yang sempit, Data logger ini memberikan akurasi terbaik di perairan dangkal. Data logger ini menawarkan nilai yang besar dan penyebaran yang mudah karena tidak ada pipa ventilasi atau pengering yang rumit untuk dirawat. Untuk penyebaran air asin, seperti lahan basah payau dan daerah pasang surut, lihat HOBO U20 Water Level Titanium.

Fitur

• Proteksi petir – tidak ada kabel sinyal panjang, dan elektronik terlindung di casing berbahan stainless steel sehingga dapat digunakan dalam air tawar (lihat gambar lokasi sensor pencatat level air)
• Perangkat lunak HOBOware Pro memberikan konversi yang mudah ke pembacaan ketinggian air, tekanan barometrik, dan kepadatan air.
• Pengambilan sampel multi-rate memungkinkan pengambilan sampel lebih cepat pada waktu-waktu kritis seperti ketika pemompaan dimulai atau berhenti.
• Tersedia dalam 4 rentang kedalaman
• Ideal untuk digunakan di sumur, aliran, danau, lahan basah, dan daerah pasang surut
• Desain tanpa ventilasi untuk pemasangan yang mudah dan andal
• Tersedia dalam versi stainless dan titanium
• Sensor tekanan keramik tahan lama
• Termasuk sertifikat kalibrasi NIST

Spesifikasi

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	<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
	The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).