Accuracy of Weighing Indicator in Logistics Weighing Transmission

In recent years, the DWS information collection management system has been widely used in the logistics industry. DWS (D-Dimension, w - weighting, S-Scanning) is an intelligent device with a one-stop service for the whole process of function module combination, measuring tool, weighing, scanning, and other functions. The weighing indicator can be used in the weighing module of the China Post DWS system to run stably.

In the DWS system, the weighing display is responsible for the weight detection of the packaging in the dynamic processing process, which puts forward high requirements in terms of stability and data processing capability. At present, the standard speed of the domestic logistics (China) industry is 90m/min. This weighing indicator can increase the speed to 120m/min, while ensuring the accuracy of the weight during dynamic transmission (±10g), effectively improving the logistics company's Product sorting process. All weighing data can be uploaded to the control center through the communication port to form a report, which is convenient for data accumulation, storage, and analysis. In addition, in the field of China Post Guiyang, the weighing module in the DWS system has passed all tests with good feedback. For packages with relatively uniform weight specifications, the repeatability and consistency of the calibration weighing are very good.

The advantages of this weighing indicator in an automatic weighing solution:

1. Strong processing ability, high precision, accurate weighing detection during dynamic transmission;

2. Fast speed (up to 120m/min);

3. Good checkability and repeatability.

The performance characteristics of the weighing indicator

The performance of the digital display includes five aspects: measurement performance, function, environmental adaptability, safety, and reliability.

Compared with the general digital instrument, the digital display has 5 characteristics:

1. It has its sensor excitation power supply, which is easy to use;

2. It adopts ratio-type A/D conversion and frequency multiplication technology, which has good long-term stability in measurement performance;

3. Software It can truly simulate the weighing characteristics such as vibration, empty scale change, material drop, etc., and display fast, accurate and stable;

4. The unit is easy to change and has strong versatility;

5. With an output interface, it can be connected to a variety of external devices to easily realize system control.

Maintenance of the weighing indicator:

1. Always check whether the wiring is loose or broken and whether the grounding wire is reliable.

2. When the weighing indicator is not used for a long time (such as more than one month), it should be checked according to the environmental conditions, to avoid moisture or other bad gas corrosion affecting the reliability.

3. The weighing indicator should be kept away from heat and vibration sources.

4. There should be no flammable and explosive gas or dust in the use environment.

5. Do not connect inductive loads, such as doorbells, to the same phase line of the weighing indicator.

6. When the weighing indicator is not used for a long time, when the fuse is replaced, the position is moved or the dust is removed, be sure to cut off the power supply.

7. If the weighing indicator fails, the power should be cut off quickly, and then special departments and personnel should be notified for inspection and sorting.

8. Both the weighing personnel and the instrument maintenance personnel need to pass special training before they can engage in operation and maintenance.