Sommer MRL-7 Data Logger With Digital Display

 
 
Sommer Data Logger MRL-7 Without Wireless Transmission - AWM Instruments.jpg

MRL-7 Data Logger

Request Pricing

Features and Benefits

  • Weatherproof logger with integrated remote data transmission using 2G / 3G modem (4G optionally)

  • Reliable and energy-saving: optimized 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 and Bluetooth

  • Data readout with USB memory stick or Bluetooth-interface

  • Minimum energy demand; integrated solar charge controller

  • Solid, compact, and weatherproof aluminium box (powder coated)

 

Description

The MRL-7 is a battery operated data logger with an integrated modem for sites that require wireless data transmission. Housed in a splash-proof housing, features USB data read-out functions and integrated solar charge controller. The MRL-7 can be packaged as a turn-key solution with solar panels weather-proof enclosure for extremely remote or difficult to access sites

Similar to the "smaller" MRL-6, also the MRL-7 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-7 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.

 

General Technical Details

Dimensions MRL-7: 180 x 150 x 60 mm | MRL-7B (with integrated battery): 180 x 150 x 60 mm (W x H x D)

  • Housing aluminium box, powder coated

  • Protection IP 67

  • Power supply

    • internal battery (MRL-7B): gel battery, 12 V 4 Ah

    • external battery: max 12 V / 50 Ah

    • external power supply: 6 ... 30 V DC

    • integrated solar charge controller for solar panel with max 40 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)

DATA TRANSMISSION

  • Modem integrated remote data transmission with 2G or 3G modem (4G optionally)

  • Target server up to three target servers (http / ftp) simultaneously

  • Further characteristics

    • Independent transmission intervals possible

    • IP call activation for remote servicing (permanent or limited over time); fixed IP

    • Time synchronisation via NTP (Network Time Protocol)

  • GPS (optionally) GPS for location detection