Causes and methods of four common faults of float level gauge

The float level can still be measured in the case of foam and liquid level shaking. The price is relatively affordable, and it is a commonly used level gauge. However, because it is a rod-type insertion method, when the measurement height exceeds 5 meters, the transportation of the instrument during the handover process is inconvenient and the transportation cost is high. Therefore, it is not recommended to use the float type liquid level measurement for liquid level measurement higher than 5 meters. level gauge, other types of liquid level gauges can be selected. 1. The indicated value is in the maximum state. When it is found that the counterweight of the float ball in the float level gauge is at the lowest point, then the liquid level at this time must be very high, and the glass plate is inconsistent with the indication of the instrument, and the value is maximized. It is speculated that the problem is likely to be an illusion caused by damage to the instrument float. Timely replacement of the float can solve this problem. 2. The floating ball does not change with the liquid level, and the highest position is usually the problem of the floating ball in the floating ball level gauge, but it is not damaged, and it is most likely caused by the floating ball falling off. In view of this situation, just check and reinstall the float in time. Another situation is that because the tank body is made of metal that can have magnetic properties, the float ball has reached the highest position when the liquid level rises. Because there is a magnet inside the float ball, which couples with the tank, the float ball is attracted Hold, in the process of the next drop of the liquid level, the float is always at the highest end, and the external performance is that the value of the liquid level does not change and is always at the highest point. The way to remedy this situation is to set a fixed point clamp at the lower end of the float where the float is sucked, so that the float cannot reach the position where it is sucked. 3. There are relatively many reasons for this situation because the indicated value is generally low. The falling off of the floating ball can sometimes cause such a situation. This is all possible. Therefore, careful inspection becomes very important when we solve this failure. For example, it is necessary to check whether the pressing instrument can work normally; whether the floating ball connecting rod can rotate flexibly; whether the pointer and the meter head are damaged, if there is no problem with these, then the connecting rod should be broken, and the connecting rod can be replaced. However, if there is still a fault after replacement, there must be loopholes in the previous inspection, please re-check carefully. 4. When the transmitter of the float level gauge suddenly fails to indicate that there is a middle fault, you should first check whether the voltage at the electrical circuit has a signal display, if not, then measure whether the power supply of the primary element is normal. There is no abnormality, that is, when the polarity is not reversed, and the current conversion part has no power output, the instrument head must be damaged, and the problem can be solved by repairing or replacing the instrument head in time

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