Under what environmental conditions should load cells not be used?

The load cell is generally made of metal, which has certain requirements for the use environment. The following environmental conditions are not suitable for the high humidity environment of the load cell: in the environment with relative humidity higher than 80% to 90%6, water vapor may condense on the surface of the sensor or penetrate into it, resulting in short circuit, corrosion and other damage, which will affect the performance and life of the sensor. If you can't swim in high temperature environment, you should choose to have good waterproof.

Moisture-proof sensor, and take corresponding dehumidification measures.

Strong magnetic field environment: the strong tunnel field will interfere with some types of load cells, which will affect the accuracy of measurement. We should try to stay away from high-power motors, transformers and other magnetic field devices, or connect the sensor with the reading instrument by shielding electric wires to reduce the interference of magnetic field on the sensor. High-temperature or low-temperature environment: High-temperature or low-temperature environment beyond the temperature range of the sensor may lead to changes in the material properties of the sensor, such as changes in elastic modulus, thermal expansion and cold contraction of parts and components, thus affecting the measurement accuracy and even failing the sensor. Therefore, when it is used in high-temperature or low-temperature environment, it is necessary to select a suitable sensor according to the temperature range of the county, or take corresponding measures such as heat insulation, heat preservation and cooling.

Dusty or corrosive gas environment: Dust will accumulate on the sensor surface, affecting its heat dissipation and normal work, and may also enter the sensor, causing wear and blockage of its mechanical parts. Corrosive gases, such as acid, alkali and other chemical gases, will corrode the metal parts and sealing materials of the sensor, resulting in damage to the sensor. In such an environment, the sensor should be moved to a clean and well-ventilated place outdoors, or a sensor with higher protection level should be used, and dust prevention and protection should be adopted. Environment with strong vibration or frequent impact: In case of strong vibration or complicated impact, the internal structure of the sensor may be loosened and deformed, which may increase the measurement error and even cause damage to the sensor. If vibration or impact cannot be avoided, anti-vibration products should be selected and appropriate damping devices should be added.

Therefore, the environmental conditions unsuitable for using load cells include high temperature, strong magnetic field, high temperature or low temperature, dusty or corrosive gas, and environments with strong vibration or shock. When using load cells in these environments, it is necessary to take corresponding protective measures or select specially designed sensors to ensure their normal operation and prolong their service life.

Shenzhen kaidechang electronic technology co., ltd. is a professional manufacturer of high-quality and high-precision force sensors. The main products are micro-tension pressure sensors, pull-rod tension pressure sensors, S-type tension pressure sensors, ring sensors, column sensors, shaft pin sensors, weighing sensors, multi-axis force sensors, torque sensors, micro-displacement sensors, pressure transmitters (hydraulic sensors), transmitters/amplifiers, control instruments, hand-held instruments and other force control products. Products are widely used in more than 10 new and intelligent high-end fields, including industrial automation production lines, 3C, new energy, robotics, machinery manufacturing, medical care, textiles, automobiles, metallurgy and transportation.