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miniPond 3F
Dosing/Filling Controller

Weighing control for filling and bagging processes of medium to high speeds, ensuring outstanding accuracy and repeatability even with difficult materials. It is versatile and can be adapted to the respective task via parameters.

Intuitive operation thanks to clear, application-oriented menus and dialogs. Commissioning, parameterizing, remote access and maintenance also via a network using the integrated web server or fieldbus. Easy link-up to a PLC or control system.

Approved weighing controller

for use in filling and packing machines

Range of application

Meets the requirements of legal metrology and is certified for use in the following legal-for-trade (and non-legal-for-trade) applications:

  • Automatic Gravimetric Filling Instruments (AGFI) –

    verifiable according to OIML R 61

  • Automatic Catchweighing Instruments (ACI) –

    verifiable according to OIML R 51

  • Non-Automatic Weighing Instruments (NAWI) –

    verifiable according to OIML R 76

Field-proven accuracy even under difficult conditions

when dosing, filling and bagging

The miniPond 3F weighing controller is designed for filling and bagging solids, bulk materials and liquids at medium to high throughput rates. It controls and monitors the complete dosing process and ensures excellent precision and repeatability even with difficult materials.

The controller’s practical automatic functions for zeroing or taring, for free-fall compensation and for checkweighing with tolerance evaluation are supplemented by selectable dosing settings for filling and dispensing processes. From 7 parameter sets, presettings for different filling weights and products can be conveniently selected.

Digital filters for optimum processing of the weighing signals and proven, powerful evaluation algorithms ensure maximum measuring accuracy, even under difficult conditions. Sophisticated control algorithms then continually optimize and adjust the weighing process. As a result, miniPond 3F is able to flexibly adapt to changes in the product properties, such as material density or flow behavior, during the filling process.

At the same time, frequently occurring disturbing influences, e.g. due to vibrations at the scales and in its vicinity or in the case of process fluctuations and switching operations, are reliably suppressed.

During operation, the miniPond 3F weighing controller automatically monitors a number of process parameters which help to optimize the system. Among others, filling weight, tolerances and process errors are recorded and evaluated. In addition, data such as counts and totals as well as diagnostic data are logged on the controller.

The weighing controller can be used stand-alone or networked and is customizable to different machine types. It is intuitive to operate, offers dialog-guided, digital adjustment and can also be configured as a multi-range or multi-interval scale. Up to 4 load cells can be connected.

Web server functionality

and various communication interfaces

The miniPond 3F can be flexibly integrated into almost any machine and control environment. For this purpose, the weighing controller offers 8 digital I/Os, COM port, Ethernet interface, Modbus protocol and optional fieldbus interfaces such as Profibus, Profinet or EtherNet/IP.
The integrated web server enables access via a browser, e.g. for setting parameters, for adjustment as well as for functional testing, and allows targeted fault and process diagnosis directly from the device. Also data backup, firmware updates and remote main­tenance can be carried out comfortably via the web interface.

Remote diagnostics and remote maintenance of devices at other locations via the Internet are also possible (if enabled accordingly). At the same time, the miniPond 3F can also be integrated into Industry 4.0-compliant structures and applications via the fieldbus, for example in condition monitoring applications on the supervisory control level or in the cloud. This makes the miniPond 3F not only a reliable, but also a future-proof weighing controller for automatic scales.


  • Evaluation electronics for strain gauge load cells
  • High internal measurement resolution and stability
  • Fast and precise control of the dosing process powered by long-proven algorithms
  • High operational reliability due to comprehensive monitoring functions
  • Diagnostic tools and support for commissioning, optimization and troubleshooting
  • User-friendly weight and status display
  • Plain-text operator guidance in 5 languages
  • Durable design for industrial use
  • Space-saving, effortless mounting with various installation options
  • Display unit can be mounted on the door / front panel without a cut-out. Template provided for drilling only 7 holes.

Filling and dosing control functions

  • Two-stage dosing: coarse and fine
  • Dosing in filling and dispensing mode
  • 7 sets of parameters for filling weights and material parameters
  • Automatic zero setting or taring
  • Automatic free-fall compensation: proportional control with quick adaptation
  • Automatic checkweighing with tolerance evaluation
  • 1 additional set point, freely configurable
  • Fault monitoring with alarm and logging
  • Totals memory and counter
  • Logging of actual weight and filling data 

Configuration and operation

  • Local operator terminal
  • Fieldbus and other interfaces
  • Web server for parameter input and backup, data exchange, firmware download, remote terminal and filling curve analysis

Connectivity / Networking

  • Ethernet TCP/IP
  • Serial COM port (RS-422/485 or RS-232)
  • Modbus (TCP and RTU)
  • Web interface
  • WebSocket (RFC6455)
  • 8 digital inputs / 8 digital outputs (24VDC each)
  • optional fieldbus: Profibus DP, Profinet or EtherNet/IP, further protocols on request