MT-653 – telemetry module for Cathodic Corrosion Protection Systems

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MT-653
Key features Functionality Technical drawing Photos MT-653 Datasheet

The MT-653 is a state-of-the-art telemetry module designed to accurately monitor and manage cathodic protection installations. It offers advanced technology, high reliability and a wide range of features that make it ideal for pipelines, tanks and other underground or submerged metal structures. It combines the features of its predecessors, the MT-651 and MT-652, which have won acclaim in the marketplace, while innovating to meet the needs of today’s installations.

The MT-653 is characterised by its compact and robust design (IP65), its ability to be mounted in cabinets and its flexibility to adapt to different installation requirements. With a large data logger and remote configuration (OTA), the module ensures continuous operation and full control of the cathodic protection system.

This module is an essential component of modern telemetry systems, combining innovation, reliability and ease of use.

Key features of the module:

  • Integrated 2G/4G modem and dual SIM technology: Communication redundancy enables reliable data transmission in demanding conditions.
  • Advanced measurement capabilities: 6 measurement channels supporting DC and AC voltages with microvolt resolution allow detailed monitoring.
  • Integrated GPS receiver: Support for GNSS systems such as GPS, Galileo, BeiDou and others ensures accurate time synchronisation.
  • Versatile communication interfaces: USB-C, RS-485 (Modbus RTU Slave) and BLE facilitate integration with various systems.
  • Diagnostics: Built-in LEDs monitor module status and an accelerometer detects unauthorised physical access to the device.

Key features

  • Embedded 2G/3G/4G modem
  • Integral GPS receiver supporting: GPS, QZSS, Glonass, Galileo, BeiDou
  • 6 measurement channels
  • Measurement of AC and DC voltages
  • Measurement in the range of microvolts
  • 2 binary inputs
  • 2 relay outputs
  • Dual-SIM technology (passive) – access to 2 independent GSM networks ensures superior availability
  • Remote communication via network and SMS commands
  • BLE interface for configuration, measurement triggering and reading of measurements in the application
  • Local configuration of the module via USB-C port
  • RS-485 serial port for external devices, Modbus RTU Slave operating mode
  • Reed switch for triggering measurements
  • External power supply back-up: 10.8 V/5.8 Ah lithium battery pack or Li-Ion battery pack 3.6 V/2.6 Ah
  • 5 diagnostic LEDs
  • Internal GPS antenna, detachable when external SMA antenna is connected
  • Two sets of connectors: M23 and detachable terminal blocks
  • Ready for NIS2
  • Real-time clock (RTC) synchronised with with the time transmitted in the GNSS system signal
  • Data logger with 0.1s resolution and 180k record capacity
  • Remote configuration, diagnostics and firmware update firmware (OTA)
  • 3-year warranty

Functionality

  • Mounting in measuring post Ø100 mm or on DIN rail 35 mm
  • External 9-30V DC power supply (with automatic detection of 24V power supply or 12V battery) with back-up option: internal lithium battery or lithium-ion battery (depending on order)
  • USB-C communication interfaces, RS-485 (isolated)
  • Integral modem:
    » 2G (850, 900, 1800, 1900 MHz)
    » 3G (bands: 1, 2, 5, 8)
    » 4G (bands: 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 18, 19, 20, 26, 28, 38, 39, 40, 41)
  • Dual-SIM – possibility of using two SIM cards
  • 2 galvanically isolated analogue input groups containing 2 differential inputs (configurable ranges 0-10 V or 0-100 V), and one dedicated 0-100 mV input in each group, i.e. a maximum of 6 measurement channels
  • 2 relay outputs (one NC, the other adapted to control an external high-power bistable relay)
  • 2 binary inputs (IN1 isolated, voltage; IN2 short-circuit to supply earth, internal pull-up to 3.3 V)
  • Two sets of connectors: M23 on the bottom panel and 3 pieces of 8pin on the front panel
  • Synchronised measurement execution
  • User-configurable measurement and task schedules (independent for each power source)
  • Built-in GNSS receiver for time synchronisation
  • Accelerometer to detect manipulation of the device or devastation of an object with movement of the device
  • Remote configuration and reading of measurement data and device status
  • External voltage loss detection and monitoring of power source voltage status
  • Internal device temperature measurement
  • Diagnostic LEDs (power and module activity status, modem status, GPS status, I/O status)
  • Recorder with 0.1 s sampling step recording measurements in internal FLASH memory
  • Remote configuration, updating and diagnostics of the device via network
  • Possibility of integration with any SCADA system
  • Communication methods:
    » Data packet transmission
    » SMS messages
  • Configurable via USB-C port
  • Access to internal registers of the device via RS-485, Modbus RTU
  • Protection against unauthorised access in the form of a list of authorised phone and IP numbers, optional password
  • User-friendly configuration tools and clear communication interface
  • Open 2 communication protocol