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M844 Data Acquisition &
Communication Module

M844 solar powered
M844 solar powered with sensor supply!

Autonomous and versatile

The M844 is a robust, ultra-low power Data Acquisition & Communication Module. This completely autonomous monitoring and data logging solution is independent from local infrastructures, using GSM/GPRS communications and solar panel, battery or AC/DC power options.

Signal inputs

M844 mains powered
M844 mains or battery powered
  • 4 (isolated) analog inputs.
  • 3 digital status-/pulse inputs.
  • 1 coil input.
  • Modbus communication protocol (RS485 / RS232).
  • SDI-12 communication protocol.

Data outputs

Application overview
M844 application overview
  • GPRS data communication through TCP, FTP and/or email.
  • Full control through the web-portal or the ProcessView software.
  • Process alarms and system alerts by SMS.

Features

  • Completely autonomous monitoring and data logging using GSM/GPRS communications and solar panel, battery or AC/DC power options.
  • Easy configuration, local through USB 2.0 or remotely by smart reversed communication.
  • Data logging by 2GB micro-SD card for over 10 million data entries.
  • Resistant to harsh environments with the IP67 / NEMA4X GRP field mount enclosure.
  • Full compliance with the ProcessMonitor web-portal or ProcessView software for data history, graphic visualization and/or alarming.
  • 110 - 230V AC mains and reverse polarity protected 8 - 30V DC power supply, battery or solar powered.
  • Reduce maintenance costs as internal battery will last for 3 - 8 years.
  • Stabilized 24V DC sensor excitation for mains powered versions.
  • Energy management sensor onboard, accurately calculates the remaining battery lifetime.
  • Integrated Quad-band GPRS antenna; no “eye-catchers” to prevent vandalism or abuse.
  • Wide operating temperature range -30°C to +75°C.
  • Flexible mounting possibilities (wall/panel/pipe).
Application example
M844 solar powered application example

Applications

  • Perfectly suitable for off-grid or hard to reach locations.
  • For level, flow, weight/mass, temperature, pressure, dissolved oxygen, pH, vibration and/or energy/fuel consumption applications.
  • Logistic and Supply Chain (SCM) optimization for raw bulk materials. Remote Silo/Tank Monitoring, Remote Inventory Management, Customer and Vendor Managed Inventory (VMI).

 

M844 feature overview

M844 feature overview
click image to enlarge

Your advantages

  • Completely autonomous monitoring and data logging solution independent from local infrastructures, using GSM/GPRS communications and solar panel, battery or AC/DC power options.
  • Easy and time saving configuration through local USB 2.0 by bright and clear terminal interface (no code input!) or remotely through smart reversed communication, even when the M844 has a public, dynamic IP address.
  • Flexible freedom in data communication by TCP, FTP and/or e-mail.
    Alerts and alarms by SMS.
  • Universal and versatile applicable for different kind of sensors and instruments through 4 (isolated) analog, 3 digital status-/pulse inputs, 1 coil input and on board Modbus and SDI-12 communication protocol.
  • Data logging by 2GB micro-SD card, for over 10 million data entries with date and time stamp.
  • Reduce maintenance costs and service time as even the optional internal battery will last for 3 - 8 years.
  • Better cause-effect retrieval with increased log interval and alarming when set point is triggered.
  • Resistant to harsh environments with the rugged GRP field mount enclosure IP67 / NEMA4X with an “all-on-board” module inside.

Downloads