BZB20 Zener Barrier
The BZB20 zener barrier is a compact, three-channel safety barrier designed to connect the analogue load cells of a scale or weighing system installed in an ATEX environment to a weighing indicator in a safe area. By using the BZB20, you can eliminate issues such as weight change with temperature, measurement stability, and weighing sensitivity degradation that are caused by standard zener barriers in weight measurements.
When using the BZB20 zener barrier in scales or weighing systems with multiple load cells, the voltage at the load cell excitation terminals will be 1.7 times higher than when using a standard zener barrier. As a result, more sensitive measurements will be obtained at the signal terminals of the load cells in the same ratio.
The BZB20 eliminates the drift in weight caused by standard zener barriers, ensuring that the scale weighing performance and sensitivity in hazardous areas match those used in non-hazardous areas.
Highlights
Measurement Type
Weight Measurement, Force Measurement, Pressure Measurement
Protection Class
IP20
Type of Device
DIN-Rail
Energy Supply
5V DC
Certificate
ATEX
Functional Features
Application Areas
- For accurate measurement in Zone 0/1/2 or Zone 20/21/22 explosive atmospheres; Connection of load cells, force sensors and strain gauge based pressure sensors,
- All kinds of industrial scales, scales and weighing systems.
Benefits
- The Zener barrier design is intended for the load cell.
- It eliminates the sensitivity and accuracy degradation, measurement and thermal stability problems caused by standard zener barriers in weighing with load cells.
- Load cell excitation, signal and sense connections are all made via a single BZB20.
Technical Specifications
BZB20 Zener Barrier
Technical Specifications
Dimensions
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