April 12, 2016

2 Min Read
Load Cell Junction Box with Fault Detection
Penko Engineering introduces the SIGMA4 load cell junction box with fault detection.

Penko Engineering introduces the SIGMA4 load cell junction box with fault detection. The system can detect if the load cells are all right or not. It automatically adjusts the calibration when a load cell or the weighing indicator has been changed.

Most measuring and weighing systems, based on strain gage load cells, exist out of more than one sensor. The connection between these sensors usually is done analogue in a load cell junction box. All sensors are connected parallel so the average of the sensors is offered to the instrumentation. This way of operation works fine, until a load cell breaks down. The system identifies this unsatisfactory, the measuring equipment continues to operate deficiently.

In order to overcome this drawback this "intelligent" load cell cable junction box was developed. During a test the system, the junction box and the indicator measure the load cell output per sensor and decide if it is all right. When the load cell is faulty, it can be switched off. This way the measuring system can operate with fewer sensors for the time being. The advantage of this method of operation is that during the test the faulty load cell is immediately recognized and with what kind of deviation. Furthermore, this module supports TEDS (Transducer Electronic Data Sheet), which means individual sensor information is available and can be compared. This facilitates automatic re-justification. Additionally, the instrument stores all calibration data, optionally, in the PC program Pi.  

The SIGMA4 is compatible with the new PENKO weighing instruments. It is suitable for 1-4 load cells. The enclosure is stainless steel with protection class IP65. Without glands, it measures 180 x 150 x 95 mm.

PENKO Engineering B.V., The Netherlands, 0031 (0)318 525630 www.penko.com

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