How to correctly install and maintain the weighing sensor?

The following are the detailed methods for correctly installing and maintaining the load cell:

Preparation before installation

Check the sensor: Before installation, carefully check the appearance of the weighing sensor to see if it is damaged, deformed, bumped, etc. At the same time, check whether its connecting wire is in good condition, so as to ensure the quality of the sensor itself is qualified and its function is normal, so as to avoid the use being affected by the failure after installation.

Clean installation environment: clean the place where the weighing sensor is installed, remove sundries, dust and foreign objects that may affect the installation accuracy and stability of the sensor, ensure that the installation surface is flat and clean, and provide good basic conditions for subsequent installation.

Prepare installation tools: according to the installation mode and structural characteristics of the sensor, prepare appropriate tools, such as wrenches, screwdrivers, level meters, etc., to ensure the smooth installation process.

Mechanical installation

Choose a suitable installation location: according to the overall design and use requirements of your heavy equipment, choose a location where the load-bearing structure is concealed and uniform, which is convenient for wiring and maintenance. For example, for a weighbridge, choose a place with a solid and flat foundation to install the sensor.

Ensure that the sensor can be uniformly stressed when heavy objects such as vehicles are loaded.

Ensure the installation level: use tools such as a spirit level to ensure that the installation surface of the sensor is in a horizontal state, so as to prevent the sensor from being unevenly stressed due to installation inclination and affect the measurement accuracy. For some multi-sensor weighing systems, the installation levelness of each sensor should be consistent and accessible.

Through repeated adjustment and measurement to meet the requirements. Correctly fix the sensor: according to the installation instructions of the sensor, install the sensor firmly on the load-bearing structure by adopting appropriate fixing methods, such as bolt fixing, etc., and pay attention to tightening the bolt moderately to avoid the sensor from being damaged or deformed due to excessive tightening, which will affect its performance. At the same time, it is necessary to ensure that the contact between the sensor and the bearing structure is good, and there is no gap or looseness.

Electrical installation

Reasonable wiring: When arranging the connecting wire of the sensor, try to avoid the cable from being squeezed, pulled, worn, etc., choose a suitable wiring path, and stay away from strong electromagnetic field sources, high temperature sources, lake wet areas and other places that may interfere with signal transmission or damage the cable. If it is necessary to wear pipe protection, it is necessary to choose a conduit with appropriate specifications to ensure that the cable can pass through smoothly and get good protection.

Correct connection: Make electrical connection in strict accordance with the wiring diagram of the sensor, and distinguish different lines such as power line and signal line to ensure accurate connection. For lines with polarity requirements, special attention should be paid to the connection of positive and negative poles to avoid the sensor from working normally or even being damaged due to reverse connection. After the connection is completed, carefully check whether the connection points are firm, so as to prevent the virtual connection from affecting the signal transmission.

Maintenance method,

Regular cleaning

Regularly clean the weighing sensor and its surrounding environment, remove dust, oil stains and sundries on the surface, and keep the appearance of the sensor clean, because the accumulation of these dirt may affect the heat dissipation performance of the sensor, or cause corrosion and other problems in a humid environment, which may affect its normal work. Clean it with tools such as clean soft cloth and brush. For the dirt that is difficult to remove, gently wipe it with a suitable cleaner, but avoid the cleaner from flowing into the sensor.

Check the connection.

Regularly check the electrical connection and mechanical connection of the sensor, check whether the connecting wire is loose, damaged and aging, and repair or replace the cable in time if there is any problem; At the same time, check whether the fixing bolts of the sensor and the bearing structure are loose, and tighten them in time if they are found loose, so as to ensure that the sensor is always in a stable installation state and ensure its uniform stress and accurate measurement.

Calibration and precision detection

Calibrate the weighing sensor at specified time intervals or under specific circumstances (after the weighing equipment has been moved or repaired, etc.). Professional calibration tools such as standard weights can be used to adjust the relevant parameters of the sensor according to the calibration procedure to ensure its measurement accuracy meets the requirements. In addition, the accuracy test is carried out regularly. By weighing the object with known weight for many times, the difference between the measured results and the actual weight is compared, and the possible accuracy deviation of the sensor is found in time, and corresponding measures are taken to correct it.

Moisture-proof, anti-corrosion and anti-high temperature

Moisture-proof: The weighing sensor should be prevented from being installed in a humid environment as far as possible. If it is unavoidable, moisture-proof measures can be taken, such as using a sealing cover, desiccant, etc., to prevent moisture from entering the sensor and causing problems such as short circuit and rust. Device, should be dried in time, such as blow dry with a hair dryer (note that the temperature should not be too high) or placed in a dry and ventilated place to dry. Anti-corrosion: If the sensor works in an environment with corrosive gas or liquid, anti-corrosion measures should be taken, such as painting and galvanizing the sensor surface, or selecting a sensor model with anti-corrosion performance. At the same time, check the sensing regularly. Whether there are signs of corrosion on the surface, handle the problems in time to prevent the corrosion from further aggravating and affecting the life and performance of the sensor. Anti-high temperature: avoid the sensor being exposed to high temperature for a long time, because high temperature may change the material properties of the sensor and affect its measurement accuracy and service life. If the working environment temperature is high, cooling measures can be taken, such as installing a heat sink and wrapping the sensor with heat limiting materials, to reduce the influence of high temperature on the sensor.

overpower protection

In the process of using the weighing sensor, it is necessary to strictly avoid the occurrence of overload, know the rated load of the sensor, and set the corresponding overload prompt or protection mechanism on the weighing equipment to prevent the heavy objects exceeding the bearing capacity of the sensor from being loaded on the sensor.

Once overload occurs, stop using it in time, check whether the sensor is damaged, and replace it if necessary to ensure the normal operation of the weighing system. Shenzhen Kaidechang Electronic Technology Co., Ltd. is a professional manufacturer of high-quality and high-precision force sensors. The main products are more than 100 kinds of force control products such as miniature pressure sensors, tension-compression sensors, screw tension-compression sensors, S-type tension-compression sensors, shaft pin sensors, weighing force sensors, multi-dimensional force sensors, torque sensors, displacement sensors, pressure transmitters (hydraulic sensors), transmitters/amplifiers, control instruments, and hand-held instruments. Products are widely used in more than 10 new and intelligent high-end fields, including industrial automation production lines, 3C, new energy, robots, machinery manufacturing, medical care, textiles, automobiles, metallurgy and transportation. Product technology continues to innovate and new product research and development capabilities are strong.