Changzhou Chengfeng Instrument adopts the level gauge produced by advanced technology, material standard, fine workmanship, beautiful appearance, can add alarm and electric remote transmission function, and has obtained explosion-proof certification. The anti-corrosion level gauge adopts imported PVDF material and the ultrasonic welding process is integrally formed. It can be comparable to imported products with obvious price advantages. The following describes the maintenance of several level gauges.
1. Direct-feeling method: The direct-feeling method is a method of judging using the direct feelings of the eyes, ears, nose, and hands. It is an indispensable auxiliary measure for maintenance. Departments, grades, roads and points can be combined and used during the entire inspection and compression process. It is sometimes particularly important when determining fault finding points.
2, test identification method: test identification method is the use of meter measurement circuit data for quantitative identification method. It is the most common basic method for compressing faulty roads and points. Test identification method is divided into two kinds of power test and no power test. The power-on test includes three levels of voltage and current testing of the level gauge , testing of circuit component parameters, and testing of the main technical indicators of the level gauge. The most commonly used voltage and current tests. Unpowered test refers to the test of the relevant line, device, component and insulation resistance of the liquid level gauge. By comparing the test data with the normal data, it is possible to identify whether the level gauge has a fault and the range of the fault.
3. Panel compression method: The panel compression method uses the float level gauge panel to control the internal circuit breakers, knobs, jacks, buttons, and pointing devices to compress the fault. The panel compression expert determines the fault phenomenon and judges an external compression fault method commonly used at the fault department level. However, because the level gauge panel is not necessarily complete and does not necessarily control the location of the fault, sometimes there is a need to fully cooperate with the other methods in order to fully recognize the scope of the fault. So, in general, panel compression mage is an effective auxiliary method.
4, interference tracking method. With a small screwdriver by hand, each level of the electronic device is tapped by the level gauge to the next level, and the method for determining the faulty stage and level is determined based on the size of the actuator and the presence or absence of speaker sound. For example, in the process of interference tracking, it is found that knocking is normal in one stage, when there is no sound or the sound is very small when the previous level is knocked on, the gap between the rear stage and the front stage is the fault area. Interference tracking is a commonly used method of overhauling magnetic float level gauges.
5. Comparison Substitution: Comparative Substitution is a method of comparing and swapping two types of level gauges, components, devices and components of the same type to identify good and bad compression failures. In the absence of gauges or the unfamiliarity of level gauges, it is relatively easy to compare the method of replacing mages with good and bad, normal or not. For example, if the magnetic flowmeter is damaged during operation, it can be compared with a normal electromagnetic flowmeter to identify whether it is good or bad. As another example, a part of the level gauge (floater) is damaged and can be seen by viewing the normal level gauge float. Therefore, it is the basic method of determining certain points of failure.
When using the level gauge, in addition to understanding its normal use and normal maintenance, it is necessary to master certain basic maintenance methods. The most commonly used methods for inspection and repair include panel compression method, direct sensing method, tracking tracking method, and contrast substitution method. These methods are described below.
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