How to Scientifically Define Requirements When Selecting a Tank Weighing System?

In the selection process of tank weighing systems, many users tend to focus solely on sensor accuracy ratings and price, overlooking the system's overall performance and on-site adaptability. This one-sided evaluation approach can lead to selection errors and even pose risks to future production.

In reality, an excellent weighing system requires comprehensive consideration of the following key factors:

1. System-Level Accuracy Definition

Avoid relying solely on the nominal accuracy of sensors. Instead, base your requirements on actual process needs by defining absolute error tolerances.

For example:

• "For a 5-ton filling process, the total system error must be controlled within ±500 grams."

• "For each 1-ton filling, the error must not exceed 0.1% of the filled weight."

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Additionally, agree on post-installation on-site acceptance criteria and periodic calibration plans.

2. Analysis of Operational Adaptability

• Mechanical Structure Impact: Installation method (leg-supported/top-mounted), flexible piping design, mixer vibrations, etc.

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• Environmental Interference: Wind load, vibration sources, temperature fluctuations, and other external factors affecting long-term stability.

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• Safety Redundancy Design: Protection capabilities for special scenarios like impact loads and overload conditions.

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3. Multidimensional Evaluation of Sensor Performance

Key parameters include: repeatability, nonlinearity, creep, hysteresis, and temperature drift coefficient.

Select and compare critical indicators based on actual application scenarios (e.g., high-frequency dynamic weighing, corrosive environments).

Our Recommendations:

• During the requirement phase, provide complete operational details (e.g., installation diagrams, process flowcharts, environmental parameters) to enable systematic design by suppliers.

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• Prioritize suppliers with engineering experience, ensuring their solutions include value-added services such as mechanical simulation analysis, anti-interference design, and long-term maintenance support.

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Only through systematic evaluation can a weighing system not only meet short-term accuracy requirements but also adapt to complex conditions, ensuring stable, reliable, and safe long-term operation.