Xian Ruijia Measurement Instruments Co., Ltd is a professional manufacturer of sensors in state-level high-tech industry development zone, Xi’an of China. Since 2005, We focused on development and production of pressure sensor, weighing sensor etc. Xian ruijia have first-class technical team, with strong R & D capability and rich experience in production management. In the production line, we have the most advanced and completed sets of equipment to ensure product quality and reliability. Xian ruijia brings together the top professional talents and technology. The software and hardware of our advanced testing equipment designed by our professional and technical personnel. We have obtained several utility medel patents from National Patent Office. We provide customers with affordable, high-quality products. In order to achieve the advantages of Asia, the full benefit in terms of quality and cost, procurement of key components from Germany and the United States, and the production and manufacturing in China. We have the best supply chain in China and parts manufacturers, and a solid record of quality and innovation, to prove that our many years performance of the sensor. Quality product performance and good reputation, our products are not only successful sales in China, and have been exported to more than 50 countries and regions in the world, including: Germany, Japan, Italy, Russia, Japan, South Korea, Turkey, Brazil , India, the United Arab Emirates, Saudi Arabia and other countries, the products are subject to a great welcome and praise. Looking forward to the future, the company is moving into the fast lane of development and will continue to adhere to the concept of creating quality products to serve global customers. Our mission is to be the most valuable and competitive automotive sensors in the world.

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Application of weighing module in reaction kettle 2025-08-02 Application of weighing module in reaction kettle 1. The weighing module is applied to material measurement Generally speaking, the measurement of liquid in storage tanks is mostly carried out using a ruler flow meter. But both methods measure by volume and then convert to weight based on the density of the liquid. Due to factors such as density and temperature, the error is relatively large. Although there are currently mass flow meters, they are rarely used by general enterprises due to their high price. Therefore, using electronic weighing modules to directly weigh materials is more economical and practical. 2. The weighing module is applied for liquid level indication and control Liquid level is an important control parameter in the chemical production process. Usually, in addition to on-site liquid level indicators, transmitters are used to convert liquid level signals into standard electrical or gas signals for remote transmission to the control room. But this method, in addition to the error in liquid level caused by changes in density as mentioned earlier, may also result in false liquid level due to material crystallization, clogging, etc., and in severe cases, may even cause accidents. In addition, due to the direct contact between the measuring part of the transmitter and the measured medium, expensive corrosion-resistant materials need to be selected for some corrosive media. And the weighing module does not directly contact the measured medium, so the above disadvantages do not exist. And the weighing display instrument can be equipped with an analog output interface, which can be connected to the recorder and regulator to achieve automatic recording and control. 3. The weighing module is applied in situations where there are strict requirements for the feeding amount Some production processes have strict requirements for the amount of material to be fed, and many companies directly place measuring tanks on the ground to control the amount of material to be fed. However, during the maintenance or calibration of the above ground scale, it is necessary to use lifting equipment to lift down the measuring trough, which is quite troublesome. If an electronic weighing module is used, as the measuring slot itself serves as the scale body, there is no lifting problem and maintenance is relatively convenient.

How to use the axle pin sensor 2025-08-02 How to use the axle pin sensor The axle pin sensor is a cylindrical body made of alloy steel and stainless steel, consisting of a middle part, namely the pressure bearing area, two sensor support areas, and two force measuring areas. The measuring device is a Wheatstone bridge made of strain gauges, installed inside a pin type sensor to prevent external adverse effects such as mechanical damage, dust, moisture, etc. The basic structure output of the pin sensor is voltage signal output, and the output of analog and digital signals is derived from the mv signal. The input form of the force in the middle part of the sensor is shear load, and the support force acting on the left and right parts of the sensor causes changes in the sensor. The deformation caused by shear stress is converted into an electrical signal proportional to the load. Due to the consideration of measurement form, the pin type sensor has an optimal measurement direction. In this optimal direction, the output signal can reach its maximum value. At this point, the pressure direction on the middle part of the sensor is consistent with the main measurement direction, which is indicated by two arrows on the sensor. The actual use of weighing sensors on equipment is also affected by temperature and lateral force. Therefore, our company's products have undergone temperature compensation and signal output compensation during production to ensure that they can achieve the actual accuracy of on-site use. There are two installation directions for sensors: horizontal installation: When installing sensors, a rainproof and anti smashing protective cover (with a depth of 120mm or more and a bottom outlet) should be designed at the aviation socket position, so that the wires can enter the conduit directly after coming out of the protective cover to prevent possible heavy objects from hitting or hanging the wires when threading the steel wire rope. Vertical installation: When installing the sensor, a rainproof and anti smashing protective cover (with a depth of 120mm or more and a side outlet) should be designed above the sensor to allow the wire to enter the conduit directly after coming out of the protective cover. A door shaped protective component (with a height of 130mm) should be designed above the protective cover to avoid damage to the protective cover caused by back and forth friction when the wire rope is loosened.

Precautions for installation and use of tension sensors 2025-08-02 Precautions for installation and use of tension sensors The tension sensor should be handled with care, especially for small capacity sensors that use alloy aluminum materials as elastic bodies. Any impact or drop caused by vibration is likely to cause significant output errors. When designing and installing the loading device, it should be ensured that the line of action of the loading force coincides with the axis of the tension sensor, so as to minimize the influence of tilting load and eccentric load. In terms of horizontal adjustment. If a single tension sensor is used, the installation plane of its base should be adjusted using a spirit level until it is level; If multiple sensors are measuring simultaneously, the mounting surfaces of their bases should be kept as horizontal as possible to ensure that the force borne by each sensor is basically the same. Select the range of the tension sensor according to this instruction to determine the rated load of the sensor used. The mounting surface of the sensor base should be as flat and clean as possible, without any oil stains or adhesive film. The installation base itself should have sufficient strength and rigidity, usually requiring higher strength and rigidity than the sensor itself. The sensor housing, protective cover plate, and lead connectors are all sealed and users are not allowed to open them. 16 installation and usage precautions for tension sensors To prevent chemical corrosion, it is advisable to apply Vaseline to the outer surface of the tension sensor during installation. The use of the stage should avoid direct sunlight and sudden changes in environmental temperature Protective or mitigating devices should be installed when unavoidable. To prevent high current from directly passing through the sensor body and damaging the sensor, welding operations are prohibited after the sensor is installed Add a bypass device made of copper braided wire at both ends of the tension sensor loading device. The cable should not be lengthened by itself. If it is necessary to lengthen, it should be soldered at the joint and sealed with moisture-proof sealant. It is best to use some baffles around the tension sensor to cover it. The purpose of doing so is to prevent debris from falling into the moving parts of the sensor, which can affect its measurement accuracy. The cable of the sensor should be kept away from strong power lines or places with pulse waves. If competition cannot be avoided, the cable of the tension sensor should be separately threaded into the iron pipe and the connection distance should be shortened as much as possible. According to the range selection of the tension sensor in this instruction, determine the rated load of the sensor used. Although the tension sensor itself has a certain overload capacity, it should be avoided as much as possible during installation and use. Sometimes short-term overloading can also cause permanent damage to the sensor. In high-precision applications, the tension sensor and instrument should be preheated for 30 minutes before use. The sensor should be placed indoors in a dry, ventilated, and non corrosive gas environment.

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