Overview
Keli sensors are precision measurement devices designed for industrial applications, particularly in weighing systems and automation. Manufactured by Ningbo Keli Sensing Technology, these sensors are widely recognized for their accuracy, robust construction, and adaptability to harsh environments. They are commonly used in sectors like logistics, manufacturing, and agriculture. These sensors employ strain gauge technology to convert mechanical forces into measurable electrical signals. Their modular designs allow integration with various equipment, making them versatile for both static and dynamic weighing applications.
Structure and Working Principle
A typical Keli sensor consists of a metal elastic body (often stainless steel), strain gauges, and a signal conditioning circuit. When force is applied, the elastic body deforms slightly, causing the strain gauges to change resistance. This change is converted into a voltage or digital signal proportional to the load. Advanced models feature temperature compensation and sealed housings (IP67/IP68) to ensure stability in humid or dusty conditions. Some variants include wireless communication for remote monitoring, catering to Industry 4.0 requirements.
Key Features
Keli sensors stand out for their high accuracy (typically ±0.02–0.05% of full scale) and long-term stability. Their rugged designs withstand overload capacities of up to 150% without permanent damage, ideal for industrial settings. Many models offer options for analog (mV/V) or digital (RS485, CAN bus) outputs. Additional features may include corrosion-resistant coatings for marine use, explosion-proof certifications for hazardous areas, and modular designs for easy replacement. Low-power versions are available for battery-operated systems.
Application Areas
These sensors are integral to platform scales, truck weighbridges, and silo weighing systems in agriculture and logistics. In manufacturing, they monitor assembly line forces or material batching. Process industries use them for tank level measurement and hydraulic/pneumatic pressure control. Emerging applications include automated guided vehicles (AGVs), renewable energy systems (e.g., wind turbine load monitoring), and smart infrastructure like bridge health monitoring. Their compatibility with IoT platforms enables data-driven decision-making.
Maintenance and Precautions
Regular calibration (annually or per usage intensity) is critical to maintain accuracy. Avoid exposure to strong electromagnetic fields or corrosive chemicals unless the sensor is specifically rated for such conditions. Inspect cables and connectors for wear, as these are common failure points. For installation, ensure proper alignment to avoid sideloading errors. Use mounting accessories recommended by the manufacturer to minimize mechanical stress. Storage should be in dry, room-temperature environments if not in use.
B2B Procurement Guide
When sourcing Keli sensors, specify the load capacity (e.g., 1t, 10t), accuracy class (C3 is common for industrial use), and output type. Verify certifications like OIML or NTEP for legal-for-trade applications. Lead times vary from 2–8 weeks for custom configurations. Bulk buyers (100+ units) may negotiate discounts of 10–20%. Consider partnering with authorized distributors to access technical support and warranties. For OEM integrations, request 3D CAD models for design validation. Always test samples under real operating conditions before large-scale procurement.
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