Sartorius MDB-5E

Sartorius MDB-5E

Product Introduction MDB-5E is an industrial weighing indicator manufactured by Sartorius of Germany as a secondary display instrument for platform, hopper, and filling scales. The instrument receives load cell mV signals, converts them via A/D to display weight, with comparator outputs and communication for dosing, filling, and bin level weighing. Panel flush-mount with IP65 front panel.

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Description

Sartorius MDB-5E

Technical Specifications

  • Product type: Weighing indicator controller
  • Input: Load cell mV signal
  • Cell excitation: DC10 V
  • Display resolution: Up to 100,000 divisions
  • A/D: 24-bit
  • Display: LED digital / LCD
  • Accuracy: OIML III
  • Output: Comparator relays, 4 to 20 mA analog option
  • Communication: RS232/RS485
  • Supply: AC115/230 V
  • Temperature: -10 °C to +40 °C
  • Storage: -20 °C to +60 °C
  • Humidity: ≤ 85 % non-condensing
  • Front protection: IP65
  • Installation: Panel flush-mount

Functional Features

  • Load cell mV signal acquisition
  • 24-bit A/D high-resolution weighing display
  • Tare, zero tracking, weight comparator output
  • Multi-stage relay output for filling control
  • RS232/RS485 to PLC or printer
  • IP65 front panel
  • Real-time weight display
  • Push-button calibration and parameter setting
  • Digital filtering suppresses vibration
  • Peak hold function

Application Scenarios

  • Hopper scale weighing display
  • Filling scale quantitative control
  • Platform scale weight monitoring
  • Dosing system weight instrument
  • Industrial bin level weighing transmitter

Materials and Construction

  • Front panel: Engineering plastic membrane
  • Housing: Die-cast aluminum
  • Seal: Silicone gasket
  • PCB: FR4 board
  • Terminals: Screw-fastened terminals
  • Display: LED digital

Structural Features

  • Panel flush-mount square housing
  • Front panel display window, pushbuttons, status LEDs
  • Rear load cell, power, communication terminals
  • Gasket seals panel to cabinet
  • Fanless cooling
  • Rear mounting clips

Working Principle The load cell bridge outputs mV under load; the instrument supplies DC10 V excitation and amplifies/filters the signal, which a 24-bit A/D converts to a digital weight. The weight is compared to setpoints; reaching upper or lower limits triggers relay output. RS232/RS485 sends weight to PLC. Pushbuttons perform tare, zero, and calibration. Digital filtering suppresses scale vibration.

Installation Requirements

  • Panel cutout flush-mount with complete gasket
  • Six-wire load cell compensation wiring
  • Load cell cable shielded away from power
  • Stable AC supply
  • Temperature -10 °C to +40 °C
  • Zero and span calibration after power-up
  • Mount away from vibration

Precautions

  • Cell excitation must not exceed 10 V
  • Load cell cable shield single-point grounded
  • Periodically perform zero verification
  • Avoid vibration and air draft interference
  • Store spares in dry environment
  • Clean with soft cloth

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