ML-017swarm – Satellite connected Data Logger

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Self-sustaining outback data logger

The ML-017SWARM is a small, cost effective data logger with built-in SatIoT modem suitable for data transfer over the Swarm low earth orbiting satellite constellation. The Swarm constellation has real global coverage enabling to monitor environmental phenomena and precious resources all over the planet affordably. This small data logger in rugged weatherproof enclosure, is provided with an industrial grade microSD card, re-chargeable battery slots and integrated charger to be powered from a small external solar panel. Hook-up sensors of your choosing to assemble a self-sustaining monitoring station that can be deployed anywhere around the globe.

Transferred data will be securely stored in a cloud storage called the Hive and can also directly be passed to the Sensori IoT-platform to present your sensor data and gain valuable insights.

Our multi-purpose data logger is customizable for any application

To be powered from a 12V
solar panel

2 current loop inputs, 2 voltage inputs, 1 potentiometer input and 3 digital inputs.

Provided with a serial port to capture measurements from ASCII, MODBUS, NMEA or SDI-12 compatible sensors

Up to 8 mathematical channels are available to calculate meaningful engineering values derived from sensor input values

Ideal for outback data logging applications

Satellite connected monitoring station

With Swarm’s global satellite coverage & low-power modems our versatile data loggers can be deployed in harsh, off-the-grid environments – from Alaska to Brazil – to capture and transmit temperature, wind speed, water oxygen levels, and more!

Please contact us or one of our distributors for product inquiries.

ML-017swarm outback data logger features

  • Data logging
    • 1 minute to 1 day intervals.
    • Regular, alarm and independent intervals.
    • Daily operation time bracket (e.g. 07:00AM to 20:00PM or 21:00PM – 06:00AM)
    • 8GB industrial grade micro SD-Card.
  • SatIoT data push to the Hive and Sensori
    • 1 hour to 1 day enqueue intervals.
    • Daily operation time bracket (e.g. 07:00AM to 20:00PM or 21:00PM – 06:00AM)
    • Up to 15 channels can be marked up for transfer.
    • Payload compaction. Typically 6 time series of 10 channels will fit a single data packet, equivalent to recording 10 channels with a 10 minute interval and a 1 hour enqueue interval.
    • Enqueued packets are transferred when a swarm passes by.
  • 5x analog inputs
    • 2x current loop inputs (0/4..20mA, 12bit resolution)
    • 2x voltage inputs (0..10V, 12bit resolution)
    • 1x voltage/potentiometer input (0..3300mV, 12bit, max. 10M) a/o to connect a wind direction sensor.
  • 3x digital inputs (status, pulse counter or On-time meter) a/o to connect a flow meter, rain gauge or reed relay based wind speed sensor.
  • Internal sensors (a/o battery, processor temperature, signal strength)
  • 8x calculation channels, to derive engineering values from sensed values using mathematical operators and functions (e.g. cos, sin, atan2, ln, sqrt).
  • 8x aggregation channels, min/max, average, gust, std dev and up to 3 different percentiles sampled at 1Hz max.
  • 1x Serial port for connecting external sensors (RS-232, RS-485 or SDI-12)
  • Serial port drivers
    › ASCII: Sensors autonomously outputting readable lines of numeric values
    › MODBUS: Read-out value registers from MODBUS (RTU/ASCII) slave devices
    › NMEA-0183: Sensors outputting standard and custom sentences
    › SDI-12: Read-out of up to 16 devices with up to 20 parameters per device using aC!, aM!, aCx! or aMx! commands
  • 1x digital open collector alarm output to switch on a relay in case a parameter value is outside its limits (e.g. a high water level)

ML-017swarm outback data logger specifications

  • Built-in SatIoT modem
    • Swarm satellite constellation compatible.
    • 192 byte data packet payload size.
    • 137-138 MHz downlink, 148-150 MHz uplink frequency.
    • External 22cm SMA-male coiled 1/4 wave antenna, 2.0 dBi gain.
    • Integrated GPS antenna, external GPS antenna optional.
  • RF performance recommendations
    • Place antenna outdoors with clear view to the sky.
    • Place antenna >=1m above the ground or solid surfaces.
    • RSSI should be within: -110 & -88dBm.
    • Keep antenna away from RF noise sources.
    • Use antenna extension cable (50 Ohm).
    • Use galvanic isolation when connecting noise conducting devices/sensors.
  • Geographic approvals
    • Americas: Brazil, Canada, Colombia, Greenland & USA
    • Europe: Austria, Denmark, Germany, Georgia, Iceland, Ireland, Netherlands, Spain, Sweden & UK
    • Oceania: Australia & New Zealand
    • Antarctica & International waters
  • Power consumption
    • 60mA@3.6V average operating1) current during a duty cycle of less than 1 sec2) per log interval.
    • <80uA@3.6V sleep current.
    • 50mA@3.6V additional when the Swarm modem is active3
    • 12V@200mA excitation to power external sensors.
  • Power supply
    • To be powered from a 36 cell 12V (21Voc) solar panel 5Wp or more.
    • Integrated LiFePO4 3.2V battery4) charger.
    • 2x 18650 battery slots, up to 3600mAh@3.2V capacity
    • State of Charge (3.1V<5%, 3.2V<20%, 3.25V<50%, 3.3V<90%, 3.4V<100%)
    • Cell over charge protection
    • Cell charge temperature protection
    • Cell low voltage protection (auto output switch-off at 2.5V)
  • Alarming
    • Open collector output (max. 100mA sink current)
  • Configuration by 
    • USB (Windows PC or Android device)
    • Wireless by Android BLE when equipped with ML-OU-BLE board.
  • Enclosure
    • IP67 (30min@1m), 150x120x90mm, 420g.
    • UV stabilized polycarbonate.
    • Wide temperature operating range –30°C to +75°C
    • Optional pole mounting bracket

1) 60mA if no external sensors need to be powered.
2) <1 sec. if external sensors are responsive and don’t require time to “warm up”.
3) Stays active till all enqueued packets are transferred, can take hours (see: Swarm Pass Checker)
4) Batteries not included.

ML-017swarm outback data logger accessoires

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Other useful links

Power consumption calculator

power consumption calculator

Our online calculator can be used to estimate the battery life of your application or to determine the right settings fitting local solar power yield.

Application notes

Data logger application notes

For additional tips, refer to our application notes. These are valuable resources to improve your understanding of our data loggers.

Wireless Bluetooth interface

Wireless bluetooth interface

By adding the tiny ML-OU-BLE option board onto your ML-417 data logger, you can add a wireless Bluetooth interface. Convenient for wireless configuration.

Discover the possibilities

Want to know more about what YDOC can do to help you with your quest for the right data logger? Do not hesitate to get in contact.