Weatherproof data logger with integrated data transmission
Collecting, processing, storing and transmitting of monitoring data - easy, convenient and quick. The MRL-8 is a battery run data, modem supported logger with splash-proof housing, USB data read-out functions and integrated solar charge controller. The very energy efficient operating mode as well as a weatherproof box qualifies the MRL-8 for data applications in remote areas far from any infrastructure.
Features and advantages
- Weatherproof logger with integrated remote data transmission using 2G / 4G modem
- Reliable and energy-saving: optimised to collect environmental monitoring data in remote areas without any infrastructure
- Logger can be operated fully independently (with batteries or solar module), integrated solar charge controller, protection IP 67
- Ideal integration and compatibility with complete SOMMER sensor family as well as popular sensor technology products
- Backlit display for easy data reading and logger parameterisation
- Parameterisation via RS-232, Bluetooth, USB, Ethernet*
- Data readout with USB memory stick or Bluetooth-interface or USB or RS-232
- Minimum energy demand; integrated solar charge controller
- Solid, compact, and weatherproof aluminium box (powder coated)
- Remote data transmission using 2G / 4G modem, Ethernet*, USB-Stick, Satellite (INMARSAT)
*... on specific versions
Fields of application
Similar to the "smaller" MRL-6, also the MRL-8 is used for applications in environmental monitoring, where low maintenance and a very energy saving operation is needed as for example at sites with no landline power network or where no additional switch cabinet shall be installed. The MRL-8 provides comfortable data transmission through its integrated modem. For this reason all-in-one solutions (sensor, data collection and transmission) can be realised very easily. In addition, remote access as well as wireless data read out and storing are possible.
Versions
MRL-8 with 4G modem
MRL-8E with 4G modem and Ethernet connection
MRL-8B with 4G modem and internal 5Ah battery
MRL-8IE with input extension in the same housing
Technical details
General
- Dimensions MRL-8: 180 x 150 x 60 mm | MRL-8E MRL-8IE : 180 x 150 x 100 mm (W x H x D) | MRL-8B : 180 x 150 x 160 mm (W x H x D)
- Housing aluminium box, powder coated
- Protection IP 67
- Power supply
- internal battery (MRL-8B): gel battery, 12 V 5 Ah
- external battery: max 12 V / 80 Ah
- external power supply: 6 ... 30 V DC
- integrated solar charge controller for solar panel with max 50 W / 12 V
- Sensor supply 5 /100 mA or 12 V / 200 mA
- Reference voltage 2.5 V for potentiometer (max. 4 mA)
- Display LCD unit with digital contrast setting, 2 x 16 characters; LED background illumination with splash water proof cover and extended temperature range
- Keypad 5 keys for reading current measurement values and observer confirmations/inputs
- Number of channels up to 99
- Memory (internal) 4 MB failure-resistant flash memory (equivalent to approx. 500,000 measurement values)
- Operating temperature -35 °C ... +60 °C (storage temperature: -35 °C ... +60 °C)
- Installation easy installation; attaching to walls without extra housing
- Functions date values, intensity, maximum, aggregate values, mean values etc.
- Deep discharge protection for logger and for MRL-7 supplied sensors
Interfaces
- Inputs
- 4 x analogue 0 ... 2.5 V (thereof 1 x PT-100 4-wire connection, 1 x NTC, 1 x 0 ... 0.3 V)
- 2 x counters (thereof 1 x impulse, 1 x shaft encoder up and down)
- 1 x frequency input for wind speed and wind gust
- 1 x potentiometer input for wind direction (replaces 1 x counter)
- Digital sensor interfaces 1 x RS 485 (SOMMER-Bus / ASCII protocols), 1 x RS-485 for web cam, 1 x SDI-12 interface
- User Interface 1 x communication interface: RS-232: transfer rete 9.6 to 115 kBd, 1 x USB host (only for data readout of data on USB flash drive), 1 x Bluetooth
- Output (digital resp. analogue) 4 x outputs (thereof 3 x switching outputs for alarm management)
- Inputs can be extended with an MRL-IE
Data transmission
- Modem integrated remote data transmission with 2G, 4G modem
- Ethernet integrated ethernet data transmission, in data push
- Satellite integrated remote data transmission with INMARSAT modem with omnidirectional antenna
- Target server up to three target servers (http / ftp /Ftps / https) simultaneously
- Further characteristics
- Independent transmission intervals possible
- IP call activation for remote servicing (permanent or limited over time); fixed IP and dynamic IP
- Time synchronisation via NTP (Network Time Protocol)
