Inspection Procedures for Industrial Weighing Systems

Inspection Procedures for Industrial Weighing Systems

General Overview of Inspection Procedures

Inspection procedures for industrial weighing systems are crucial for maintaining accuracy, safety, and compliance with industry standards. These procedures typically involve a series of steps to evaluate the system's mechanical integrity, electronic performance, and overall functionality. The goal is to identify and correct any issues that could affect the reliability of weight measurements.

Detailed Inspection Procedures

1. Pre-Inspection Checks

Visual Inspection: A thorough visual check is the first step. Technicians look for any visible signs of damage, wear, or corrosion on the scale's platform, support structure, and surrounding environment. This includes checking for debris or objects that could interfere with the scale's movement.

Cable and Connection Check: All cables and connections, especially those leading to the load cells and indicator, are inspected for fraying, damage, or loose connections. Secure and clean connections are essential for accurate signal transmission.

Foundation and Environment: The foundation of the weighing system is checked for cracks, shifting, or unevenness. The surrounding area is also assessed for potential environmental factors, such as excessive vibration, moisture, or extreme temperatures, which could impact performance.

2. Calibration and Verification

Zero Balance Check: The system's zero balance is checked with no load on the scale. The indicator should display a stable zero reading. Any drift or inability to zero out could indicate a problem with the load cells or electronics.

Span Calibration: This is the most critical part of the inspection. A series of certified test weights is used to check the system's linearity and accuracy across its weighing range. The weights are applied incrementally, and the displayed weight is compared to the known weight of the test weights. Any discrepancies are noted and corrected.

Repeatability Test: This test involves placing the same weight on the scale multiple times to ensure it consistently provides the same reading. This verifies the system's ability to produce reliable and repeatable measurements.

3. Functional and Operational Tests

Load Cell Performance: The individual load cells are often checked to ensure they are functioning correctly and that their outputs are balanced. This can be done using a multimeter or a dedicated load cell tester.

Indicator and Software Check: The weighing indicator's display and functionality are tested. This includes checking for proper key functionality, stable readings, and correct data transmission to any connected software or peripheral devices.

Safety and Overload Test: The system's overload protection is checked to ensure it activates correctly and prevents damage to the load cells when excessive weight is applied. Safety features, such as emergency stop buttons, are also tested.

Specifications:

SMARTWEIGH INSTRUMENT CO.,LTD , established over 15 years, which is one of the largest manufacturers and exporter in China. Our workshop occupy 20,000 square meters and located in a very convenient and beautiful city, Changzhou, it is close to Shanghai and only take one hour by high speed railway.

Our company have advanced production equipments like Bending machine, pre-arch machine, shearing machine, qutomatic welder, automatic welding robot, plasama cutting machine, and baking paiting room, to help us increase the product quality and production productivity Our company also have the senior technician team and design team. Many products have been applied patents.

Under the advanced test equipement, technical workers and rich experice, we manufactured high qualified truck cales, platform scales, bench scales, crane scales, highway axle scales, as well as spare parts like indicators and loadcells. We have exported to RUSSIA, KSA, USA, UK, HOLLAND, SPAIN, ITALY etc many different kind of countries, our good quality and timely delivery has attracted over 200 long term distrbutors all over the world.

Our yearly export collection amount keep about 5000,000 to 10000,000 USD, among of this, our project for the foreign railway, highway and government is the majority. By the way, We can supply both ODM and OEM design also.

Our company havs been awarded ISO 9001, CE, SGS, OIML cetificate for our products, all weighing scales are

pre-calibrated before shipping, We deicated to the spirit of " Quality come first forveve and technology detemines the productivity"since extablished, and we have benifited from it and quietly brilliant for over 15 years.

More and more wonders and brilliant future will be made be by SMARTWEIGH!