​The key points to be paid attention to in using electronic crane scale

The key points to be paid attention to in using electronic crane scale
 Electronic crane scale is a precision measuring instrument weighing device, looking directly at the electronic crane scale for everyone's work has brought great convenience, but we need to pay attention to the use of electronic crane scale how much understanding of the key points? Here is a brief introduction to you, hope to help you.
 1.  Please carry the sling ring or add additional auxiliary tools to the sling ring for weighing. Please do not hold the shell scale by hand, otherwise, the error of the displayed value of the weighing will exceed the standard.
 2.  The electronic crane scale should be in the vertical direction every time when starting up the self-inspection before use, otherwise it will produce human error.
 3,  In the use of electronic crane scales should try to avoid violent collision and impact, avoid the appearance of damage products.
 4.  If the battery is low when the product is in use, please replace the battery in time to avoid automatic shutdown when the battery is low.
 5,  If the electronic crane scale is not used for a long time, should take out the battery, avoid damage to the product circuit due to battery leakage.
 Attention to the use of electronic crane scale:
 Safety requirements for relevant parts and spares of hoisting machinery and spars.
 With the electronic crane scale upper and lower connected parts and lifting equipment, said specifically is all kinds of hook and all kinds of lifting equipment. There are many specific contents, such as technical standards, safety regulations and precautions for use and maintenance of various kinds of hooks and slings, which can be divided into three stages: design, manufacture and use. They can be summarized as follows:
 1. Design stage
 (1)The bearing structure should strive to be simple, stress is clear, direct transmission of force, reduce the impact of stress concentration.
 (2)The design should consider the impact of dynamic load, wear, corrosion, temperature, working environment and other factors on the safety performance.
 (3)The bearing structure should have enough strength, stiffness and stability.
 (4) The material of bearing structure is usually recommended to use low alloy steel with high elongation and large impact work.
 2. Manufacturing stage
 (1)The bearing surface and internal should not be enough to affect the use of defects, and should have good fatigue resistance.
 (2) The fiber direction of the forging and the rolling direction of the rolling stress are consistent with the stress direction of the rolling parts. The heat - affected zone formed by gas cutting must be eliminated.
 (3) Manufacturing materials, purchased parts and components must have the manufacturer's certificate and other technical documents, otherwise inspection should be carried out to find out the qualified performance before use.
 (4)High-strength bolt connection should be tightened with special tools according to technical design requirements.
 (5) After the inspection of qualified products, the manufacturer should be in its proper place to make not easy to wear the mark, and issue a certificate of quality. The marking content shall at least include: rated lifting weight (limit working load), inspection mark, production number, date of manufacture, manufacturing unit; The content of the qualification certificate shall include main technical performance parameters; When the product is sold, it shall be accompanied by safe use,