OTT HydroMet

- Model OTT ecoLog 1000 - Self-Contained Groundwater Level Logger

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Self-contained groundwater level logger for measuring water level and temperature with integrated mobile communication. The OTT ecoLog 1000 is a self-contained, cellular groundwater level logger for measuring water level and temperature. It provides reliable system up-time and accurate measurements while avoiding data gaps. It’s simple to operate using just a smart phone or PC via integrated Bluetooth Low Energy (BLE) - no additional tools for maintenance or battery replacement. It supports mobile devices, smart phones, and tablets operating with Android, iOS or Windows 10. Configure and monitor your data remotely with integrated two-way mobile communication to avoid unnecessary, expensive trips to your measurement site and send encrypted data with automatic retries if transmission fails. The ecoLog 1000 with 4G/2G module will replace the ecoLog 500.

  • Application: Surface water, Groundwater
  • Measurement technology: Vented pressure cell
  • Parameters measured: Waterlevel/pressure, water temperature
  • Product Highlights: Integrated modem (4G / 2G), Bluetooth Low Energy (BLE), operation via APP, Lithium Powerpack with plug, exact battery level indicator, service life > 10 years, IP data transmission, cable can be shortened on site
  • Measurement range: 0 … 4, 10, 20, 40, and 100 m
  • Accuracy: ± 0.05 % FS
  • Internal data logger: Yes

  • Integrated cellular modem
  • Wireless local communication via Bluetooth Low Energy (BLE)
  • Local communication via APP (Android, iOS, Mac, and Windows 10 devices)
  • Remote access via two-way mobile communication, network management capable
  • Robust design – ceramic pressure cell for level measurement
  • Intelligent power management

Designed for

  • Ground and surface water level monitoring
  • Short-term and long term continuous monitoring to collect more data, more often
  • Access the data  anytime and anywhere with internet or cell connection (in conjunction with a data hosting bundle)
  • Monitor water level rises, drought, climate change, water availability, and water use over  time
  • Precise and accurate water level data in near real-time


Used by

  • Municipal, state, and federal government agencies
  • Water resource managers, scientists, and technicians
  • Universities and research centers
  • Consultants and engineers


Locations

  • Groundwater, in well solution
  • Surface water, in pipe solution
  • Urban to remote locations with mobile signal
  • For fresh, brackish, or salt water

  • Measurement range:
    • Measurement range pressure: 0 ... 4 m (13 ft ), 0 ... 10 m (33 ft), 0 ... 20 m (66 ft), 0 ... 40 m (131), 0 ... 100 m (328 ft) water column
    • Resolution pressure: 0.001 m / 0.1 cm / 0.01 ft / 0.1 inch / 0.0001 bar / 0.001 psi
    • Accuracy pressure: ± 0.05 % full scale
    • Long-term stability (linearity + hysteresis): ± 0.1 %/a full scale
    • Units: Water level m/cm/mbar/ ft, inch, psi
    • Pressure sensor: ceramic / temperature-compensated
    • Temperature-compensated operating range: (compensated) -5 °C (ice-free) ... +45 °C
    • Measurement range temperature: -25 °C ... +70 °C
    • Resolution temperature*: 0.1 °C
    • Accuracy temperature*: ± 0.5 °C
    • Unit temperature: °C
  • Electrical data
    • Power supply: 3.6 V / 26 Ah - Lithium power pack with connector
    • Battery life time: > 10 years @ average temperature of 20 °C/68 °F, 1 hour sampling and 1 transmission per day
    • RTC Clock Accuracy: ± 26 s / month (at 25 °C / 77 °F) / < ± 3 s using SNTP
  • Interfaces: 
    • Modem: Mobile network LTE Cat-1(4G): B3 (1800 MHz), B8 (900 MHz), B20 (800 MHz)
    • Local interface: BLE 5.0 - up to 10 m (free line of sight)
    • Antenna: SMA connector with Penta Band Stubby Antenna
  • Measurement
    • Measurement values: Water level / water pressure
      Sample/storage interval: 5 s ... 24 h
  • Data transmission
    • Transmission interval: 1 min ... 1/week
    • SMS: SMS data transmission / commands
  • Data memory
    • Measurement memory: 28 MB (> 970.000 values)
  • Operating environment
    • Temperature range, operating: -30 °C ... +85 °C (-22 °F ... +185 °F)
    • Temperature range, storage: -40 °C ... +85 °C (-40 °F ... +185 °F)
    • Humidity: 5% ... 95 % (non-condensing)
    • IP rating logger unit: Flooding without damage for 1 week / 1 m (3.3 ft) water column
    • IP rating senor: IP68
  • Dimensions
    • Logger unit: LxØ: 525 x 50 mm (2') / LxØ: 20.7 x 2.0 inch
    • Pressure probe: LxØ: 195 x 22 mm (<1') / LxØ: 7.7 x 0.9 inch
    • System length**: 2 ... 200 m (±1 % ±5 cm) / 6 ... 656 ft (±1 % ±1 inch) (cable length incl. communication unit and pressure probe)
    • Installation: 2' and up
  • Weight
    • Logger unit incl. battery pack: ~ 900 g (~ 31.7 oz)
    • Pressure probe: ~ 670 g (~23.6 oz)
    • Pressure probe cable: ~42 g/m (~1,48 oz/m)
  • Material
    • Pressure probe housing: Aluminum / POM
    • Logger housing: Stainless steel 1.4539 (904L)
    • Cable jacket: PUR - certified for drinking water
  • Directives compliance
    • EU directives compliance: CE
    • US directives compliance: FCC / IC


* higher resolution/accuracy on request
 
** larger system length on request

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