Liquid turbine flowmeter liquid crystal number does not increase the reason why

　　As a high-precision flow measurement device, the liquid turbine flowmeter will inevitably encounter measurement problems during use. What should be done if there are problems? What may be the causes? Today, the editor will provide you with some reasons and solutions.

Possible reasons why the LCD display number does not change:

　　1. Check whether the power cord, fuse, function selection switch and signal line are broken or in poor contact.

　　2. Check whether the internal printed plate and contact parts of the display have poor contact.

　　3. Check the detection coil.

　　4. Check the internal fault of the sensor.

Solutions that can be implemented on site:

　　1. If all the inspections are confirmed to be normal or the fault has been eliminated, but the fault phenomenon still exists, it means that the fault is inside the flow channel of the sensor. You can check whether the impeller touches the inner wall of the sensor, whether there is any foreign matter stuck, and whether the shaft and bearing are stuck or broken.

　　2. Printed board fault inspection can be carried out by replacing the "spare plate" method, replacing the faulty board and then conducting a detailed inspection.

　　3. Mark the position of the detection coil on the sensor body, unscrew the detection head, and move the iron sheet quickly under the detection head. If the counter does not increase, check whether the coil is broken or the solder joints are desoldering.

　　4. Remove foreign matter and clean or replace damaged parts. After restoration, blow air or turn the impeller by hand. There should be no friction sound. After replacing bearings and other parts, recalibrate to obtain a new instrument coefficient.

　　The above are the reasons and solutions for the liquid turbine flowmeter LCD numbers not increasing provided by the turbine flowmeter manufacturer. You can make some references based on the above content. I hope it can help users understand more maintenance methods during use and reduce measurement errors during the use of the instrument. Regular maintenance and maintenance of the instrument can effectively improve the performance of the instrument.