Connection boxes and converters

The junction box serves to connect the parts of the weighing equipment to each other and transmit the total signal to the weighing terminal. The transmitter is designed to convert standard signals coming from strain gauges into an analog signal of 4-20 mA or 0-10 V. The "Keli Sensing" box and converter contribute to balancing the load on scales and optimizing weighing processes.

For connecting load cells:

Analogues Digital

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Device and principle of operation of connection boxes and converters

Unlike simple terminal blocks, the balancing box for electronic scales summarizes the signal of a group of load cells to form a general weight signal. This is necessary because there are a number of factors that can impair the accuracy of weight measurement. Low-quality construction of the foundation, improper assembly of the weighing platform, subsidence of the soil lead to the fact that the lifting device (platform) - unevenly distributes the load at different points. Therefore, the box for scales performs a very important function - equalization of angular loads, regardless of the location of the load on the lifting device.

Characteristics of connection boxes and converters

The number of inputs for connecting load cells

on 4
on 6
on 8
on 10
on 12

Material of the body of the weighing junction box

plastic
stainless steel
aluminum

Plastic boxes have the lowest price, but, accordingly, the lowest parameters in terms of characteristics. Therefore, models made of stainless steel are of the highest quality.

Dust protection of the terminal junction box for scales

Weighing equipment needs a high level of protection against external factors, because load cell scales can be located outdoors, in a dusty room, in quarries, warehouses with frozen and raw products. Therefore, all models of Keli adders have a high level of dust protection IP67 and IP68, which contributes to the correct and reliable functioning of the equipment.

Explosion-proof performance

Junction boxes can also have explosion-proof properties. This is also related to the specifics of the place of use of weighing equipment. The function of explosion protection is especially relevant for coal mines, grain and cotton processing enterprises, paper industry.

Analog-digital converter

The Keli converter is designed to convert the signal from analog strain gauges. The digital signal is coded by the closed KELI С,Е,К protocol. The received signal of the converter is further transmitted through the serial interface RS485 to the digital indicator (D12, KU08(D2008), D39).