LIMITED LIABILITY COMPANY UZH-AUTOMATION

GPRSLink

GPRSLink

Multi-Sensor Input Logger plus Extremely Flexible & Economical 2-Way GPRS

FEATURES

  • GUI setup program.
  • Terminal strip with screw terminals for I/O and power connections
  • Operates 8-16VDC -12V required for SDI-12 sensors
  • TCXO real-time clock with battery backup (+/-4ppm)
  • Solar panel regulator for panels up to 30 watts.
  • Options to average or accumulate any measurement.
  • USB slave for serial connection to PC. THE USB PORT WILL NOT SUPPORT typical USB devices like memory sticks, modems, etc.

    TELEMETRY via GPRS

  • Periodic transmissions at user set times with data in user selectable format (pseudobinary C, others)
  • Support for primary and secondary master stations via GPRS
  • Alarm transmissions as they are detected.
  • Diagnostics to help track of the amount of data being sent and the performance of the telemetry
  • Support for remote commands for data collection, maintenance or control of two on/off devices
  • Optional authentication of incoming messages to insure they are from a trusted source & optional authentication of messages sent to TEMPEST /SUTRONWIN via GPRS
  • SMS transmissions if GPRS fails or in place of GPRS
  • Extremely affordable
  • GPRS modems use wireless cellular technology and provide data access in most areas where a typical cell phone works.

    16 Measurement Support for these Inputs:

  • SDI-12/RS485 (shared as is done in the Bubbler)
  • 5 Analog inputs: 2 single ended inputs (range 0-5V); 2 differential inputs (range +/-39mv, +/-312mV, +/-2.5V); 1 4-20mA input
  • 2 digital inputs. They can be used for tipping bucket, frequency, and on/off inputs
  • 2 internal SPI for future expansion
  • Internal temperature
  • Battery voltage
  • Meta measurement

  • Lightning protection (Gas Tube) on all external inputs.
  • User specified equation on any measurement
  • User specified alarm detection on any measurement.
  • 2 LED for verification/diagnostics.
  • Log capacity of 240K of data accessible via GPRS and direct connect
  • SW Battery output and 1 digital output (open collector)
  • Also operates as a standalone recorder without telemetry
  • RealTime Clock operates with internal lifetime battery.

    Datasheet

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