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SDI-12 Tipping Bucket Interface

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SDI-12 Tipping Bucket Interface

    • Improved Reliability

    The SDI-TB is compact and can be easily mounted inside most tipping buckets. This eliminates the need for long wires (from the tipping bucket to the SDI logger) susceptible to noise,

    • Programmable Daily and annual resets

    The SDI-TB has an internal RTC that can be used to automatically compute yearly and daily accumulations.

    • Rechargeable Backup Power

    The SDI-TB can run off its internal rechargeable backup power in case SDI power is lost. All crucial functions of the SDI-TB, like measuring rainfall and the internal RTC can run for up to 10 hours without SDI-12 power.

    • Smart Sensor Compensation

    The SDI-TB can be programmed to compensate for rainfall lost due to heavy rainfall rates especially when using a tipping bucket without a siphon.

    • Low Power

    The SDI-TB draws about 100μA and has been optimized to run on a shoe-string power budget.

    • Compact Rugged, Water Resistant

    The SDI-TB is compact and encapsulated in a water-resistant epoxy compound for installations


     SPECIFICATIONS

    Subject to Change Without Notice

    MECHANICAL / ENVIRONMENTAL
    Enclosure Potted enclosure for humid environments
    Dimensions 3 x 1.5 x 2 inches
    Weight ~75 gms
    Temperature -40C to +60C
    Connector 5 pin connector
    POWER
    Input Voltage 4v – 20v DC
    Internal backup power run time 10 hours
    Internal backup power charge time ~18 hours
    Internal backup power charging current 25mA (fully discharged) to 100μA (fully charged)
    Quiescent Current 100 μA @12v (once fully charged)
    COMMUNICATION
    Protocol SDI-12 v1.3 (SDI communication will be disabled when running off internal backup power)

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