1. Solutions
  2. Industrial Internet of Things (IIoT)
  3. Weighing electronics

Weighing electronics

Electronics from WIKA: the entire system from a single source

Only when supplemented with the appropriate electronic components does a load cell become a weighing solution. As a complete weighing system, all components can deliver maximum benefit. To ensure that as many system-relevant components as possible come from a single source, WIKA offers a comprehensive range of weighing electronics. WIKA offers indicators and displays, amplifiers and hand-held indicators as well as junction boxes and cables. With the help of electronics tailored to the measuring components, the correct weight is always displayed. Amplifiers are available with both analogue and digital output signals.

What are weighing electronics? 

Weighing electronics comprise all electronic components that record, transmit, sum, amplify, process and/or output the raw signal from a load cell as a weight value. These include weighing indicators, weighing terminals, amplifiers, weighing transmitters, evaluation units and interface modules.

How do weighing electronics that amplify raw signals work? 

The analogue raw signal of the load cell (mV/V) is recorded, stabilised and filtered by weighing electronics that amplify the measuring signal. Subsequently, the raw signal is amplified to a current or voltage output and, for digital values, converted by an A/D converter. The amplified signals are visualised in the evaluation unit, processed and passed on to higher-level control systems or distributed control systems.

What is the difference between analogue and digital weighing electronics? 

  • Analogue weighing electronics: typically output the amplified signal as 4 ... 20 mA or 0 ... 10 V.
  • Digital weighing electronics: transmit values via digital interfaces such as RS-485, Modbus®, CANopen®, PROFIBUS, PROFINET or Ethernet/IP.

Digital systems offer higher interference resistance, greater accuracy, additional diagnostic functions, data logging and frequently remote monitoring capabilities.

What functions do weighing electronics perform within a measuring system? 

They handle the signal recording, amplification, filtering, A/D conversion, data processing, display and transmission of the weight value. In addition, it often controls switching functions, stores measured values or integrates the system into automation solutions via interfaces.

Where are weighing electronics used? 

Weighing electronics are used in numerous industrial applications, including the following:

  • Hopper scales and silo scales
  • Belt scales and conveyor scales
  • Truck scales, weighbridges and axle load scales
  • Industrial process plants and filling systems
  • Test benches and test systems
  • Logistics and dosing systems

Depending on the application, standard solutions or customised systems are used.