Syndar has been focusing on innovations in food packaging, weighing, and quality inspection and control. Experienced and aggressive employees
- The checkweigher may have inaccurate weighing after a long time of use, and the core component of the weighing mechanism is the load cell, which is the key to the inaccurate weighing.At present, the checkweigher generally uses resistance strain gauge load cell (analog) as the core component of the weighing mechanism. It uses the Wheatstone bridge principle to transform the weight signal into a linearly changing electrical signal. There are conventionally four lines and the input is 5. -10V excitation voltage (supply voltage), the output is a weight signal with "mV" as the unit. Here are three ways to judge good or bad1: ObservationObserve whether the sensor is deformed or cracked. If these conditions occur, you need to contact the manufacturer to replace a new sensor.2: Line input and output measurement methodFind the sensor connection terminal in the checkweighing controller, and determine the sensor connection circuitUnder normal circumstances, the excitation voltage (between EXC+ and EXC-) is 5-10V, and the output voltage (between SIG+ and SIG-) is close to 0 when the device is empty, which is less than the maximum output of the sensor. (The maximum output of the sensor = excitation voltage * sensor sensitivity, the sensitivity of the checkweigher sensor is mostly 2mV/V), if it exceeds this range, contact the service provider to apply for a replacement of the sensor.3: Sensor resistance measurement methodMeasure the resistance of the sensor, and judge the quality of the sensor by the resistance（1）: Input resistance≧output resistance>bridge resistance（2）: Under normal circumstances, the bridge resistances are equal or equal to each other(Note: The input resistance is the resistance between EXC+ and EXC-, the output resistance is the resistance between SIG+ and SIG-, and the bridge resistance is between EXC+ and SIG+, EXC+ and SIG-, EXC- and SIG+, EXC- and SIG- Resistance between)The above is the judgment method of the checkweigher weighing sensor. It should be noted that the weighing sensor is not so easy to be damaged under normal use. Many failures are caused by the improper use of the checkweigher to overload the sensor. Therefore, in the process of using and disassembling and maintaining the checkweigher, we should try our best to avoid heavy objects from hitting and bumping, and operate strictly in accordance with the checkweigher range.Syndar is a company that focuses on automated intelligent equipment systems. It has many years of history. Since the industrialization of food in 1965, food weighing inspection has been an important issue for major manufacturers. Syndar has always ensured the stable performance of the testing equipment sold to customers, and Syndar's products are produced in accordance with international standards. contact us!Navigation
- How Do You Check the Accuracy of a Checkweigher Correctly?Many people will have some misunderstandings in testing the accuracy of the checkweigher, resulting in some errors in the test results. This article will specifically introduce the correct method of checking the accuracy of the checkweigher.
- How to Make the Measurement Result of the Checkweigher More Accurate?If the measurement results of the checkweigher can be made more accurate through correct operation, the production efficiency will be greatly improved. This article will specifically introduce the precautions during the operation of the checkweigher.