Small Knowledge: Four Questions and Answers about Chain Code Calibration of Electronic Belt Weighers

Electronic belt weighers are dynamic weighing devices used for continuous measurement of materials conveyed by belt conveyors. They are characterized by high measurement efficiency and are widely applied in various industrial environments.

However, adverse factors such as dust and vibration can affect the weighing accuracy of belt weighers. In scenarios involving production batching, trade settlement, and economic accounting, high precision and stability of electronic belt weighers are particularly crucial. To maintain their accuracy, regular maintenance and calibration are essential.

The calibration methods for electronic belt weighers generally include material calibration, chain code calibration, and hanging weight calibration. Material calibration is the most accurate but often impractical due to high site requirements and operational difficulties.

Hanging weight calibration, which uses weights instead of actual materials, generally cannot accurately simulate material flow and has lower accuracy. In daily applications, chain code calibration is a common method for electronic belt weighers. This article focuses on introducing chain code calibration for electronic belt weighers.

What is a Chain Code for Electronic Belt Weighers?

Chain code calibration for electronic belt weighers involves using a chain of weighted blocks to simulate actual material flow. The chain code consists of several small chain wheels linked together, with a fixed weight that is determined based on the actual material flow rate.

One end of the chain code is fixed parallel to the belt weigher, allowing the small wheels on the chain to roll on the belt. When the belt operates, it is equivalent to having a continuous flow of material with the weight of the chain code passing over the belt weigher.

What are the Advantages and Disadvantages of Chain Code Calibration for Electronic Belt Weighers?

Chain code calibration for electronic belt weighers is a flexible and convenient method with low cost, simple operation, and the ability to simulate material flow accurately. It offers high calibration precision, strong durability, and a long service life. In situations where material calibration is not feasible, chain code calibration is often preferred.

What are the Types of Chain Codes for Electronic Belt Weighers?

Chain codes for electronic belt weighers can be broadly classified into fixed and mobile types. Fixed chain codes include those with retrieval devices, which can be further divided into lifting and circulating types. Mobile chain codes refer to a set of chain codes that can be moved.

Lifting chain codes for belt weighers incorporate a lifting mechanism on top of a regular chain. During calibration, the lifting device places the chain code in the weighing area of the belt weigher.

After calibration, the chain code can be retracted, saving manual handling. Circulating chain codes for belt weighers consist of a set of chain code blocks that can be freely collected and placed on automatic control equipment. These chain codes offer high automation, simple operation, and are suitable for high-precision calibration scenarios.

Winch chain code devices for belt weighers can be classified into fixed and mobile types. Fixed types are used for a single belt weigher, while mobile types are a set of chain codes that can be used to verify multiple belt weighers, not targeting a specific one.

This type of calibration device requires a smaller investment but is relatively more difficult to operate and requires a certain amount of manpower.

How to Choose a Chain Code for Electronic Belt Weighers?

When selecting a chain code for an electronic belt weigher, first determine the weight and length of the chain code blocks based on the verification requirements of the belt weigher. Simultaneously, determine the type of chain code based on the on-site calibration conditions.

The specifications of the belt weigher chain code should be determined according to the relevant parameters and production rate of the belt conveyor, with the length of the chain code depending on the number of weighing rollers of the electronic belt weigher.

Of course, manufacturers of electronic belt weighers can recommend suitable chain code calibration methods and configurations. Guonuo Technology not only formulates reasonable and applicable electronic belt weigher solutions for users but can also provide chain code calibration device solutions if needed.