Learn about the Scales and Weighing Instrument Shopping Details
August 17,2022
As common weighing equipment, the importance of weighing instruments is self-evident. Here is a brief introduction to the weighing instruments and weighing display instruments that need to be paid attention to when selecting them.
The purchase of electronic weighing instruments
The precision grade of weighing instruments currently on the market is (III) scales, and the display division is generally 3000 divisions, and the small division value varies from 1g to 50kg according to the size of the scale.
When purchasing: For example, take a 15kg electronic weighing scale as an example, 1. The numbers are displayed stably (without blinking) in the empty scale state and the large weighing state; 2. Use a third of the large weighing weight (or The weight close to this value) placed on the scale table 1/4 (divide the scale table into 4 equal parts) to test whether the numbers of each point are consistent. 3. If conditions permit, take a large standard weight and place it on the scale table Test its accuracy. 4. Take a standard weight close to the large scale (or a weight close to this value) and load it 3 times, and test whether the numbers are consistent. 5. Press each function key to test whether the function keys are in good contact, and whether to achieve the goal.
Selection of weighing display controller
- Types of instruments
According to its function, there are single-function, multi-function, and special-purpose instruments.
According to the characteristics of the sensor output signal, it can be connected to a sensor with an analog output signal or a sensor with a digital output signal. In addition, it has a pricing function, which has a multi-purpose meter. The single-function instruments in its series include A1---metering type, A2---counting type, and so on.
- Advantages and disadvantages of a multi-function meter and single-function meter
Multifunctional instrument: It has strong adaptability and can be widely used in various non-automatic electronic weighing instruments and automatic electronic weighing instruments. But the software development cycle is long and the hardware support cost is high, so its manufacturing cost is high.
Single-function instrument: The software development cycle is short and the hardware is less, so its manufacturing cost is lower.
In dedicated meters, the manufacturing cost is between single-function and multi-function. In terms of use failure rate, the multi-function is higher in comparison.
- Issues to consider when choosing an instrument
- The choice of which type of instrument should be based on actual needs, rather than selecting as many functions as possible.
- Select the products that have obtained the production license of measuring instruments.
- All technical indicators are in line with weighing display control standards.
- To check whether it meets the protection requirements.
- Dynamics of the domestic weighing display controller
The instruments currently developed and produced in China are generally only equipped with one scale, while the instruments produced abroad can be equipped with multiple scales at the same time. Its software functions and hardware support can be shared, which relatively reduces manufacturing costs and management costs in use.
- Matters needing attention
When developing a new instrument, attention should be paid to its reliability, and its technical requirements and metrology should meet the requirements of the main clauses in the OIML No. 76 proposal document, especially in terms of anti-interference. This is a general optional inspection, but it can reflect the technical performance of the display and the normative requirements of various functions.
- Maintenance
Correct use and timely maintenance are the keys to prolonging the service life of the equipment. The measuring instruments must be used in the specified environment. To avoid innocent damage to the equipment, the operating instructions and technical instructions should be carefully read and used only after the confirmation.
Searching for onboard vehicle weighing systems, truck onboard weighing systems for sale, onboard weighing systems trucks manufacturer from China, you can get high-quality products at a nice price.
