Choosing a suitable weighing sensor requires comprehensive consideration of key factors such as range, accuracy, environmental adaptability, installation method, and output signal to ensure accurate, stable, and long-lasting measurements.
Define Application Requirements
Range Matching: The sensor range should cover 1.5–2 times the maximum weight of the object being measured, with a safety margin to handle impact loads. For example, when weighing 500kg of material, it is recommended to choose a sensor with a range of 750–1000kg to avoid creep errors caused by long-term full-load operation.
Accuracy Class Selection: Select the accuracy class according to industry requirements:
High-precision scenarios (such as pharmaceutical ingredient preparation) require OIML C3/C4 grade (error ≤ ±0.02%FS); For general industrial applications (such as warehousing and sorting), C3 grade is sufficient.
Operating Environment Assessment:
High-temperature environments (such as metallurgy and furnaces): Select a high-temperature resistant sensor (operating temperature up to 250℃), or install a water-cooling/air-cooling device. Humid or corrosive environments (e.g., food processing, chemical industry): Select sensors with IP67/IP68 protection rating and stainless steel sealing structure to prevent moisture, acid, and alkali corrosion.
Explosion-proof areas (e.g., petrochemical, gas industry): ATEX/IECEx certified explosion-proof sensors must be used to ensure safety.
Environments with strong electromagnetic interference: Prioritize sensors with good shielding performance to reduce the risk of signal interference.