SARTORIUS MDB-8E 85-264V 47-440HZ – Used for automatic weight inspection machines, weight loss feeding and filling lines to improve production efficiency!

The SARTORIUS MDB-8E 85-264V 47-440HZ is a high-performance, multi-channel digital weighing transmitter designed for demanding industrial applications requiring simultaneous acquisition from up to eight load cells or strain gauge sensors. As part of Sartorius’s renowned industrial weighing portfolio, the SARTORIUS MDB-8E 85-264V 47-440HZ serves as the central signal processing unit in dynamic weighing systems such as checkweighers, loss-in-weight feeders, batching stations, and multi-head filling machines.

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Description

The SARTORIUS MDB-8E 85-264V 47-440HZ is a high-performance, multi-channel digital weighing transmitter designed for demanding industrial applications requiring simultaneous acquisition from up to eight load cells or strain gauge sensors. As part of Sartorius’s renowned industrial weighing portfolio, the SARTORIUS MDB-8E 85-264V 47-440HZ serves as the central signal processing unit in dynamic weighing systems such as checkweighers, loss-in-weight feeders, batching stations, and multi-head filling machines. Its advanced analog-to-digital conversion architecture delivers exceptional resolution (up to 1 million counts) and rapid sampling rates (up to 200 Hz per channel), enabling real-time weight monitoring even under vibration or rapid motion.

Engineered for global deployment, the SARTORIUS MDB-8E 85-264V 47-440HZ features an ultra-wide universal power input range (85–264 V AC/DC) and frequency tolerance (47–440 Hz), making it compatible with virtually any industrial power grid—from standard 50/60 Hz mains to aircraft or marine auxiliary systems operating at 400 Hz. Each of its eight channels operates independently with dedicated excitation voltage and filtering, eliminating cross-talk and ensuring measurement integrity in complex multi-scale setups. The SARTORIUS MDB-8E 85-264V 47-440HZ also supports standard industrial communication protocols like Modbus RTU over RS-485, allowing seamless integration into PLC, DCS, or SCADA environments without proprietary gateways.

Technical Specifications

Parameter Name Parameter Value
Product Model MDB-8E 85-264V 47-440HZ
Manufacturer Sartorius AG
Product Type Multi-Channel Digital Weighing Transmitter
Number of Channels 8 independent channels
Excitation Voltage 5 V DC ±1%, short-circuit protected
Sampling Rate Up to 200 measurements/second per channel
Resolution Up to 1,000,000 counts (20-bit internal ADC)
Accuracy ±0.01% of full scale (typical)
Power Supply 85–264 V AC or DC, 47–440 Hz
Communication Interface RS-485 (Modbus RTU protocol)
Mounting DIN rail (EN 60715)
Protection Rating IP20 (for use in control cabinets)
Operating Temperature 0°C to +50°C
Dimensions (W×H×D) 120 mm × 110 mm × 85 mm

Main Features and Advantages

True 8-channel independent measurement:
Unlike daisy-chained or multiplexed solutions, the MDB-8E 85-264V 47-440HZ provides fully isolated signal paths for all eight load cell inputs. Each channel has its own precision amplifier, filter, and A/D converter, ensuring zero interference between scales—critical in applications like multi-bin batching where simultaneous weighing must be both fast and accurate.

Universal power compatibility for global use:
The MDB-8E 85-264V 47-440HZ eliminates the need for external power conditioners or transformers. Its ability to operate on any voltage from 85 V to 264 V and frequencies from 47 Hz to 440 Hz makes it ideal for export machinery, mobile equipment, or facilities with unstable power grids. This feature is especially valuable in aerospace test rigs or offshore platforms where 400 Hz power is common.

High-speed, high-resolution weighing performance:
With a 20-bit internal ADC and digital filtering algorithms, the MDB-8E 85-264V 47-440HZ achieves stable readings even in high-vibration environments. Its 200 Hz update rate per channel supports dynamic processes like conveyor belt checkweighing, where products move continuously and decisions must be made in milliseconds.

Seamless industrial integration:
The built-in RS-485 port with Modbus RTU support allows direct connection to Rockwell, Siemens, ABB, or Schneider PLCs. Engineers can read weight values, tare commands, and status flags using standard register maps—no custom drivers or middleware required. This open architecture reduces engineering time and simplifies troubleshooting.

Robust design for industrial reliability:
The MDB-8E 85-264V 47-440HZ complies with IEC 61000 EMC standards for ESD, surge, and electrical fast transients. Its conformal-coated PCB (optional) resists humidity and chemical vapors, while the compact DIN-rail form factor saves panel space. All calibration data is stored in non-volatile memory, surviving power cycles without drift.

Application Field

The MDB-8E 85-264V 47-440HZ is widely deployed in industries where precision, speed, and multi-point weighing are essential. In pharmaceutical and food packaging lines, it powers multi-head combination weighers that calculate optimal product distribution across hoppers to achieve target fill weights with minimal giveaway—saving thousands in raw material costs annually.

In chemical and plastics manufacturing, the MDB-8E 85-264V 47-440HZ controls loss-in-weight (LIW) feeding systems that meter powders or pellets into extruders. By continuously monitoring hopper mass at high speed, it enables closed-loop feedback to screw feeders, maintaining consistent blend ratios even during line speed changes.

For automotive and battery production, the MDB-8E 85-264V 47-440HZ verifies the weight of individual cells or modules on assembly conveyors. Its fast response ensures 100% inline inspection without slowing throughput, while Modbus integration logs data for traceability and quality audits.

Finally, in export-oriented machinery, the universal power input of the MDB-8E 85-264V 47-440HZ allows OEMs to build a single machine variant for global markets—whether destined for Europe (230 V/50 Hz), North America (120 V/60 Hz), or military/aerospace sites (115 V/400 Hz)—eliminating regional redesigns and inventory complexity.

Related Products

  • MDB-4E: 4-channel version of the same platform; ideal for smaller systems requiring fewer inputs
  • PR 6201: Sartorius high-precision load cell; commonly paired with MDB-8E for industrial scales
  • A&D AD-4940: Competitor multi-channel transmitter; MDB-8E offers superior sampling rate and Modbus support
  • SIWASCALE MUX-8: Alternative 8-channel mux box; MDB-8E provides true parallel processing vs. sequential scanning
  • Sartorius Combics II: Benchtop indicator; MDB-8E is its industrial embedded counterpart for OEM integration
  • MDB-8E-PROFIBUS: Variant with PROFIBUS DP interface instead of Modbus; for Siemens-centric plants

Installation and Maintenance

Pre-installation preparation: Install the MDB-8E 85-264V 47-440HZ in a clean, dry control cabinet with adequate airflow. Mount securely on a 35 mm DIN rail and ensure all load cell cables are shielded twisted pairs, with shields grounded at the transmitter end only. Verify that the power supply falls within the 85–264 V range and is free from large inductive spikes—use a line filter if connected to VFDs or large motors. Before powering on, double-check wiring against the terminal diagram to avoid reversed polarity or short circuits.

Maintenance recommendations: Periodically inspect terminal tightness and cable integrity, especially in high-vibration environments. Recalibrate the MDB-8E 85-264V 47-440HZ annually or after mechanical disturbances using certified test weights. Monitor communication error counters via Modbus to detect early signs of bus degradation. If the unit is exposed to dust or humidity, consider ordering the conformal-coated version for enhanced longevity. Always back up configuration parameters before firmware updates or system modifications.