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OTT ecoLog 500 Water Level Logger

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OTT ecoLog 500 Water Level Logger

    • Remote data transmission: receive data, status messages, and low power warnings from the office via SMS, FTP, HTTP, and e-mail, eliminating field visits for data download and troubleshooting
    • Complete in-well solution: all components are inserted into the groundwater well, eliminating the possibility of instrument vandalism
    • Battery life: up to 10 years with lithium batteries, alkaline options are also available. All batteries are field-replaceable without additional tools
    • Long-term durability: a robust ceramic pressure cell, kevlar-reinforced cable, and high-quality 904 L stainless steel housing provide lasting quality
    • User-friendly interaction: only one program required to setup unit and download data, plus a simple infrared communication interface that provides easy on-site data download
    Continuous or real-time water level measurement of:
    • Groundwater wells
    • Streams, rivers, channels, and canals
    • Reservoirs, lakes, and wetlands

    Ideal for monitoring:

    • Continuous water level networks
    • Short-term or long-term projects
    • Events
    • Pump-tests
    • Landfill groundwater levels

    Water level measurement
    Measuring ranges 0 … 4 m, 10 m, 20 m, 40 m, 100 m
    Pressure resolution 0.01 % FS
    Pressure accuracy ±0.05 % FS
    Long-term stability ±0.1 % / year FS
    Temperature measurement
    Measuring range –-25 °C … +70 °C
    Temperature resolution 0.1 °C
    Temperature accuracy ± 0.5 °C; higher accuracy optionally available
    Electrical data
    Power supply 2 x 1.5 V C Alkaline cells or Lithium cells, 3.6 V/13 Ah or Lithium cells, 3.6 V/26 Ah
    Battery life @ 1 h measurement interval & one transmission per week
    Lithium-battery (DD): approx. 10 years
    Alkaline batteries (CC): approx. 2 years
    Modem GSM Standard 850/900/1800/1900 MHz, GSM (quad band), GPRS
    Antenna Built-in, weather-proof, external antenna optionally available
    Interface at site Infrared (IrDA)
    Memory 4 MB, approx. 500,000 measured values
    Sampling/storage interval 5 seconds …… 24 hours
    Installation ≥ 2″
    Environmental conditions
    Operating temperature -30 °C …… + 85 °C
    Storage temperature -40 °C …… + 85 °C
    Dimensions L x Ø
    Communication unit 522 mm x 50 mm
    Probe 195 mm x 22 mm
    System length
    (Cable length incl. communication unit and pressure probe) 2 … 200 m ± 0.25 m
    Material
    Communication unit Aluminium, PA-GF
    Sonde Stainless steel (DIN 1.4539, 904 L )
    Weight
    Communication unit (w/o. batteries) approx. 0.720 kg
    Probe approx. 0.300 kg
    Type of protection
    Communication unit IP67
    Probe IP68
    EMC limits According to EG 204/108/EG, ETSI EN 301 486-1/-7, EN 61326-1 FCC approved

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