Teach you six tricks to correctly judge the failure of the weighing instrument of the checkweighing equipment

Weighing instrument is an important part of weighing and sorting equipment. It can store and count the weighing data, and can export and view the weight of a single product, the total weight and quantity of the whole batch at will, and can be stored for one year; at the same time, it can also judge the weighing score by the data displayed by the weighing instrument. Check whether the equipment is faulty, and make fault prevention in advance to avoid unnecessary losses. Here, the editor of Zhongshan Kenwei has sorted out the identification methods of weighing instrument faults for everyone, hoping to help users better maintain the weighing and sorting equipment. 1. Observation method The 'observation method' is a method to find the cause of the fault through direct inspection of the human body. Usually, there are several methods: eye observation, ear listening, hand touch, and nose smelling: eye observation is to observe the instrument and sensor (wiring). Check whether the wiring of the box) is normal, whether the power supply and control line are connected normally, whether there is disconnection, bumping, short circuit, etc.; and observe whether the inside of the instrument is burnt, whether there is water ingress, whether the insurance is disconnected, etc. Listening is to listen carefully to see if there is any abnormal sound inside the instrument. To touch it by hand is to touch whether the temperature of the transformer, wire package, filter capacitor and other components is abnormal. Nose sniffing is to smell whether there is a burning smell in the machine. 2. Plugging and unplugging method 'plugging and unplugging method' is a method of unplugging a component and then plugging in a simulated component to see where the fault is and find the cause of the fault. For example, if the display of the weighing instrument is unstable, unplug the connection cable between the junction box (loading sensor) and the instrument, and connect the simulator. If the reading of the instrument becomes stable, it means that the problem lies in the junction box or the sensor. Otherwise, find the problem from the meter side. 3. Substitution method The 'substitution method' is to replace the parts with doubtful points of failure with normal components, circuit boards, etc., and whether it returns to normal after replacement, so as to find out the cause of the failure. Fourth, the comparison method The 'comparison method' is to use multimeters, oscilloscopes and other instruments to measure the voltage, resistance, waveform and other data of the components with suspected faults, and to judge whether the components are faulty by comparing with the normal values. 5. Static characteristic measurement method (measurement method) 'Measurement method' is a method to measure the level of each point in a certain state of the instrument with a multimeter, and then analyze and judge the cause of the fault according to the logic principle. 6. Code diagnosis method 'Code diagnosis method' is a judgment method to find out the problem through the error code obtained by the self-diagnosis of the instrument. The above six methods are for reference only, and the specific faults also need to be checked by professional technicians. If the user does not understand the technology, it is best not to automatically repair and disassemble, so as not to damage the important components of the equipment, they can notify the professional maintenance personnel to visit the door to ensure that the weighing and sorting equipment can be used normally. The equipment produced by Zhongshan Kenwei provides 'one-year warranty and lifetime maintenance' service, so that customers can buy with peace of mind and use them with peace of mind.