U20-001seriel使用说明书手册

HoBo®U20 Water LevelHOBOLogger(U20-001-0x and U20-001-0x-Ti)ManualData LoggersThe HOBO U20 Water Level Logger is used for monitoring changing water levels in awide range of applications including streams,lakes,wetlands,tidal areas,andgroundwater.The loggers are typically deployed in existing wells or stilling wellsinstalled specifically for deploying the loggers.This logger features high accuracy ata great price and HOBO ease-of-use,with no cumbersome vent tubes or desiccantsto maintain.The logger uses a maintenance-free absolute pressure sensor and features adurable stainless steel or titanium housing(depending on model)and ceramicpressure sensor.The HOBO Water Level Titanium is recommended for saltwaterdeployment for recording water levels and temperatures in wetlands and tidalareas.The logger uses precision electronics to measure absolute pressure andtemperature and has enough memory to record over 21,700 combined pressureand temperature measurements.SpecificationsHOBO Water Level LoggerPressure (Absolute)and Water Level Measurements U20-001-01 and U20-001-01-TiModels:Operation Range0 to 207 kPa (0 to 30 psia);appraximately 0 to 9 m (0 to 30 ft).U20-001-01 (30-foot depth)of water depth at sea level,or 0 to 12 m(0 to 40 ft)of water atand U20-001-01-Ti (30-foot3,000 m(10,000 ft)of altitudedepth/Titanium)Factory Calibrated Range69to207kPa(10to30p5ia,0°to40*℃(32°to104F)U20-001-02 (100-foot depth)Burst Pressure310 kPa (45 psia)or 18 m(60 ft)depthandU20-001-02-Ti(100-footdepth/Titanium)Water Level Accuracy*Typical error:±0.05%F5,0.5cm(0.015f刊waterU20-001-03 (250-foot depth)Maximum error:0.1%FS,1.0 cm(0.03 ft)waterandU20-001-03-Ti(250-footRaw Pressure Accuracy**0.3%FS,0.62 kPa(0.09 psi)maximum errordepth/Titanium)·U20-001-04(13-foot depth)Resolution<0.02 kPa (0.003 psi),0.21 cm(0.007 ft)waterand U20-001-04-Ti (13-footPressure Response Time (90%)***<1 second;measurement accuracy also depends ondepth/Titanium)temperature response timeRequired Items:Pressure (Absolute)and Water Level Measurements U20-001-02 and U20-001-02-Ti.Coupler(COUPLER2-B)withOperation Range0 to 400 kPa (0 to 58 psia);approximately 0 to 30.6 m (0 to 100USB Optic Base Stationft)of water depth at sea level,or 0 to 33.6 m (0 to 111 ft)of(BASE-U-4)orwater at 3,000 m (10,000 ft)of altitudeHOBO Waterproof Shuttle(U-DW-1)Factory Calibrated Range69 to 400 kPa (10 to 58 psia),O'to 40'C (32*to 104*F)·HOBOware®ProBurst Pressure500 kPa (72.5 psia)or 40.8 m(134 ft)depthAccessories:Water Level Accuracy*Typical error:0.05%FS,1.5 cm (0.05 ft)waterMaximum error:0.1%FS,3 cm(0.1 ft)water.Cable (CABLE-1-300orCABLE-1-50)and Cable CrimpRaw Pressure Accuracy**0.3%FS,1.20 kPa (0.17 psi)maximum error(CABLE-1-CRIMP)Resolution<0.04 kPa (0.006 psi),0.41 cm(0.013 ft)water◆Replacement Coupler(COUPLER2-B)Pressure Response Time (90%)***<1 second;measurement accuracy also depends ontemperature response timePressure(Absolute)and Water Level Measurements U20-001-03 and U20-001-03-TiOperation Range0 to 850 kPa (0 to