ML-x17, 2G/3G/4G(LTE-M) Data Logger


The data logger can acquire physical signals by 2 current loop inputs, 2 voltage inputs, 1 potentiometer input and 3 digital inputs. More or special inputs can be added by means of internal stackable option boards/converters. The data logger is provided with one serial port to capture measurements from ASCII, MODBUS, NMEA or SDI-12 compatible sensors. External sensors can be powered by the data logger itself, to prevent them to consume power while the data logger is a sleep. Up to 8 mathematical channels are available to calculate meaningful engineering values derived from sensor input values (e.g. a polynomial to calculate a flow from a stream level). Supports up to 8 aggregation channels (e.g. to record 2 or 10 minute wind speed averages sampled at 1Hz).
Logged data can be pushed to a central host by HTTP(S), FTP(S), e-mail, secure TCP or MQTT(S) at configurable intervals and optionally by satellite as well (Iridium SBD).
The ML-x17 is available in several editions and with 5 different cellular modems:
- ML-217: 2G Global
- ML-317: 3G Global with 2G fall-back
- ML-417: 4G Global (LTE Cat M1 aka LTE-M)
- ML-E417: 4G Europe (LTE Cat 1) with 2G fall-back
- ML-N417: 4G North-America (LTE Cat 1) with 3G fall-back
Features
2) <1 sec. if external sensors are responsive and don't require time to "warm up".
3) Lithium batteries not included.
4) FTPS (TLS Explicit), ML-417 (LTE-M) does not support FTPS.
5) ML-417 (LTE-M) has no eMail abilities.
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Data logging
› 1 second 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)
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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
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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
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Internal sensors (a/o battery, processor temperature, signal strength)
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8x calculation channels, to derive engineering values from sensed values using mathematical operators and functions (a/o cos, sin, atan2, ln, sqrt)
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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)
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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)
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Accessories
› Several stackable option boards
› JPEG camera CAM-2.0M
› GPS receiver GPS-E3329
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Built-in cellular data modem
› ML-217: 2G Global (Quad-band GPRS)
› ML-317: 3G Global (Penta-band)& 2G fall-back (Quad-band GPRS)
› ML-417: 4G Global (LTE-M)& 2G fall-back (Quad-band GPRS)
› ML-E417: 4G Europe (LTE Cat 1)& 2G fall-back (900/1800MHz)
› ML-N417: 4G North-America (LTE Cat 1)& 3G fall-back (850/1900Mhz) - 2FF (Class B) SIM-CARD slot
- 8GB µSD-Card (file storage), 512kB FLASH (program storage), 64kB SRAM (runtime memory)
- 60mA@3.6V average operating1) current during a duty cycle of less than 1 sec2) per log interval.
- 250mA@3.6V average operating current during 20..60 sec. 3G data transfer
- <80uA@3.6V sleep current
- 12V@200mA switchable power outlet to power external sensors
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Power supply
› 3.6V DC input for internal D-size Lithium battery3)
› Optional 3xAA NiMH3) charger and 1Wp solar panel integrated in cover
› Optional 8..28V DC-Adapter and 3x AA NiMH charger integrated in cover
› Optional 12V battery charger for 21VOC external solar panel integrated in cover -
Data push
› 1 minute to 1 day intervals
› regular and alarm intervals (direct push on alarm raise or fall)
› daily operation time bracket (e.g. 07:00AM to 20:00PM or 21:00PM - 06:00AM)
› native, JSON or CSV log files by HTTP(S), FTP(S)4), e-Mail(SMTP)5), secure TCP(AES-128) or MQTT(S)
› JPG pictures by HTTP(S), FTP(S)4), e-Mail(SMTP)5), secure TCP(AES-128) or MQTT(S)
› SBD messages by Iridium satellite modems (960x) - Alerts by SMS, e-Mail4) or MQTT
- Configuration by USB (local), secure TCP tunnel (remote) or optional Bluetooth LE (wireless)
- Rugged and waterproof IP67 enclosure (130x120x75mm)
- Optional pole mounting bracket
- Integrated GSM antenna, external GSM antenna optional
- Wide temperature operating range –30°C +75°C
2) <1 sec. if external sensors are responsive and don't require time to "warm up".
3) Lithium batteries not included.
4) FTPS (TLS Explicit), ML-417 (LTE-M) does not support FTPS.
5) ML-417 (LTE-M) has no eMail abilities.
Use our online Data logger power consumption calculator to estimate the battery life of your application or to determine settings fitting local solar power yield.