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Author: Smartweigh–Multihead Weighter
The multihead weigher is a kind of sensor equipment, which can accurately measure the force of the object according to the load borne by the test bearing medium. The multihead weigher can convert the pressure from the medium into a relative electronic signal, and then achieve the purpose of accurate measurement. A weigher is a device that converts quality data signals into electronic signals that can be accurately measured. So what is the working principle of the multihead weigher, and how to remedy the failure of the multihead weigher? Let's take a look below! ! What is the working principle of multihead weigher? First of all, we need to understand what is the working principle of multihead weigher. We need to know that there are actually many multihead weigher products, such as car multihead weigher, aircraft multihead weigher, etc., but they are all inseparable from one The product is the load cell, which we will introduce here. The load cell consists of an elastomer with strain gauges.
Elastomers are usually made of steel or aluminum and are very strong with very little elastic deformation. as noun“Elastomer”In other words, steel or aluminum deforms a certain amount under load, but then returns to its original position, elastically responding to each load. These tiny changes can be obtained with strain gauges.
The deformation of the strain gauge is interpreted by electronics to determine the weight. To understand this last point, we need to explain strain gauges in more detail: they are electrical conductors that are firmly attached to a substrate in a serpentine fashion. When the substrate is pulled, it lengthens along with the electrical conductor.
When it shrinks, it becomes shorter. This will cause a change in resistance in the electrical conductor. This is how load cells work.
Applied to multihead weigher is the working principle of multihead weigher. How to remedy the failure of the multihead weigher 1. Failure phenomenon: the large screen display does not display normal weighing data since it is turned on. Cause of failure: The connection method between the interface of the weighing display and the interface of the large screen is not unified.
Solution: Find some content about the connection interface in the manual of the weighing indicator and the description of the large screen, and connect the interface correctly and it will be normal. 2. Fault phenomenon: The weighing display self-checks after starting up, and then displays“…………”crash. Cause of failure: The green and white data lines in the junction box are reversed.
Solution: Disconnect the power supply immediately, use the weighing indicator to check whether the corresponding color lines of all sensor cables and the bus are correct, that is, red to red, black to black, white to white, green to green, and test whether there is any connection between them. No touch line, just reconnect. 3. Fault phenomenon: After the weighing display is connected to the computer, there is no weighing digital display when running the weighing software. Cause of failure: The data cable connecting the weighing display and the computer is connected incorrectly or the baud rate setting is not uniform.
Solution: Find the part about the connection interface between the weighing indicator and the computer in the manual of the weighing indicator and the large screen description, connect the interface correctly, and then check the baud rate settings of the weighing indicator and the computer software. 4. Failure phenomenon: After the weighing display is connected to the computer, running the weighing software displays garbled characters. Cause of failure: The baud rate settings of the weighing indicator and the weighing software are not unified.
Solution: Check the baud rate set in the weighing indicator and computer weighing software separately, and set them uniformly. 5. Fault phenomenon: After the car gets off the scale, a relatively large stable data is still displayed on the weighing display. Cause of failure: The limit of the weighing platform is stuck.
Solution: Check the limit position of the weighing platform and adjust it to a reasonable position. Sixth, the failure phenomenon: boot display a“Err”Error message, and the weighing indicator checks each sensor in the state of modifying the address, the sensor can work normally. and from“number 1”Begin to gradually increase the number of connected sensors. When a certain number of sensors are not connected, a weighing indicator will appear.“Err”error message.
The above is the working principle of the multihead weigher introduced to you, and how to remedy the failure of the multihead weigher.
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