Strain gauge tension and compression load cells are available in two different input and output wiring methods:
The first is the four-wire connection method.
The load cell of the four-wire connection method has no special requirements for the secondary instrument panel, and it is very convenient to use, but when the cable is long, it is easy to be affected by factors such as operating temperature fluctuations;
2. Six-wire connection method.
The load cell of the six-wire connection method stipulates that the secondary and secondary instrument panel of the supporting application has a response input socket, and the application standard is limited, but it is not easy to be affected by factors such as fluctuation of working temperature, and has certain advantages in high-precision and long-distance accurate measurement.
How to wire two methods:
The power supply is positive, the power supply is negative, the response is positive, the response is negative, the data signal is positive, and the data signal is negative. If it is a 6-wire sensor, the 2 groups of wires with small resistance of the measurement sensor are the positive response of the switching power supply; Turn off the power supply and react negatively, input the sensor after receiving the display, and accurately measure the positive current value (MV) The positive display data signal and the negative display data signal are negative; If it is a four-wire value, it is necessary to show the positive wiring of the switching power supply and the negative reaction of the switching power supply, and measure the four sensor lines with a meter, during which the two with large resistance are the switching power supply, and the other two are data signals;
Depending on the source of the sensor, it can be distinguished by the color of the wire. -Generally speaking, red is positive for switching power supply, negative for switching power supply, yellow is positive for data signal, and color is negative for data signal.
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