The weighing transmitter is a weighing device, but it is different from the ordinary weighing device. It converts the weight signal of the object into an electrical signal, and displays the weight of the object to people through the electrical signal. The use of the weighing transmitter should fully consider whether the use environment is suitable, and the poor use environment will affect its work.

At present, there are many types of weighing transmitters on the market, such as resistance strain type, photoelectric type, hydraulic type, capacitive type, electromagnetic force type, etc. Each type has its own characteristics and is different in use. One , the selection of the accuracy level of the sensor

The accuracy level of the weighing transmitter includes the non-linearity, creep, repeatability, hysteresis, sensitivity and other technical indicators of the sensor. When selecting the sensor, you should not blindly pursue high-level sensors, and you should consider the accuracy level and Cost. Under normal circumstances, the total accuracy of the selected sensor is nonlinear, and the root mean square value of the sum of the three indicators of non-repeatability and lag is slightly higher than the accuracy of the scale.

2, the scope of use of various types of sensors

The selection of the form of the weighing transmitter mainly depends on the type of weighing and the installation space to ensure proper installation and safe and reliable weighing; on the other hand, the manufacturer's suggestions should be considered. For the weighing transmitter manufacturer, it is generally It specifies the force condition, performance index, installation form, structural form, material of elastomer, etc. of the sensor.

3, pay attention to the use environment

A weighing transmitter is actually an output device that converts a mass signal into a measurable electrical signal. When using a sensor, the actual working environment of the sensor must first be considered, which is very important for the correct selection of the sensor. It is related to the sensor. Whether it can work normally, its safety and service life, and even the reliability and safety of the entire weighing instrument.

Under normal circumstances, the high temperature environment will cause problems such as melting of coating materials, solder joints, and structural changes in the internal stress of the weight transmitter; dust and humidity will cause short circuit effects on the sensor; in a highly corrosive environment, it will cause The sensor elastomer is damaged or short-circuited; the electromagnetic field will interfere with the sensor output.