ESMTS500 50kg Electronic Portable scale sensor with 10VDC
Working Principle
When an object is placed on a sensor, gravity causes the elastomer of the sensor to undergo slight elastic deformation. The strain gauges attached to the elastomer also deform accordingly, resulting in a change in their resistance. The strain gauges are usually connected in a Wheatstone bridge circuit, and the change in resistance causes the bridge to become unbalanced, thereby outputting a faint voltage signal proportional to the gravity applied. This signal is then processed through amplification, filtering, and A/D conversion, ultimately converting it into a display of the object's weight.
Product Features
1. Mini flat structure: Designed with ultra-thin sheets, compact and lightweight, easy to embed in tight spaces, suitable for portable devices and integrated weighing scenarios.
2. High sensitivity: Based on the Wheatstone bridge strain gauge principle, providing stable signal output with high resolution for small ranges, capable of precisely detecting minor weight changes.
3. Easy installation: Standard mounting holes reserved at both ends, allowing quick fixing with screws, with clear force direction to effectively reduce eccentric loading errors.
4. Sealed protection: Core sensitive element encapsulated in white colloid, offering dust and moisture resistance, suitable for regular indoor and mild outdoor environments.
5. Low power consumption: Low operating current, ideal for battery-powered portable devices (e.g., handheld scales, luggage scales).
6. Long-term stability: Metal elastomer with excellent fatigue resistance, minimal creep and hysteresis errors, ensuring consistent measurements over long-term use.
7. Strong compatibility: Suitable for electronic hand scales, kitchen scales, portable courier scales, small platform scales, smart cabinets/trash bins, and other scenarios.
8. Anti-interference capability: Differential signal output effectively suppresses common-mode interference, maintaining measurement accuracy even in complex electromagnetic environments.
9. Customization options: Range, mounting hole positions, cable length, and interface type can be adjusted as needed to meet integration requirements for specialized equipment.
APPLICATION SCENARIOS
1. Portable weighing devices: such as electronic handheld scales, luggage scales, and handheld weighing instruments for express delivery and logistics.
2. Precision measurement equipment: laboratory analytical balances, small electronic bench scales, counting scales.
3. Industrial/Smart Home: small weighing modules, vending machine weight detection, smart trash can weight sensing, etc.
Product detail
Technical Specifications
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ESMTS500-50KG portable scales sensor |
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Range (kg) |
50 |
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Comprehensive error (%F.S) |
0.3 |
Rated output temperature drift (%F.S/10°C) |
≤0.15 |
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Sensitivity (mv/v) |
1±0.15 |
Zero output (mV/V) |
±0.3 |
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Nonlinear (%F.S) |
0.2 |
Input resistance (Ω) |
1000±5 |
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Repeatability (%F.S) |
0.1 |
Output resistance (Ω) |
1000±5 |
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Lag (%F.S) |
0.2 |
Insulation resistance (MΩ) |
≥2000(100VDC) |
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Creep (%F.S/3min) |
0.1 |
Recommended excitation voltage (V) |
5~10 |
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Zero drift (%F.S/1min) |
0.1 |
Operating temperature range (°C) |
-10~+50 |
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Zero temperature drift (%F.S/10°C) |
0.3 |
Overload capability (%F.S) |
150 |
