Electrode maintenance of Anhui Tiankang electromagnetic flowmeter
The role of the electromagnetic flowmeter electrode is to elicit an induced potential signal that is proportional to the measured electrical potential. If there is a problem with the electrode, the electromagnetic flowmeter will not work properly, so the maintenance of the electrode is very important. Let's take a look at the electromagnetic flowmeter electrode. maintain. 1. Before using the electromagnetic flowmeter, use a standard pH solution to calibrate the electromagnetic flowmeter. After the calibration, before operation, everyone must pay attention to cleaning the electrodes of the electromagnetic flowmeter with distilled water, and then cleaning the electrodes again with the test liquid. 2. If you do not use an electromagnetic flowmeter, when removing the electromagnetic flowmeter electrode, we must pay attention not to allow the touchpad of the electrode to collide with a hard object. Otherwise, as long as it is damaged, it will affect the use of the electrode. 3, after the use of electromagnetic flowmeter, we must put the electromagnetic flowmeter electrode sets to put on, which put less saturated solution, as long as the electrode bulb is guaranteed to be wet, but remember not to put in distilled water soak. Â Â 4, always pay attention to keep the electrode clean, do not let it appear on both sides of the output short circuit, otherwise it will make the measurement is not accurate, affect the use of electromagnetic flowmeter. Â Â Everyone should pay more attention to the use of the process, do not because of their own little negligence caused the electromagnetic flowmeter can not be used normally in the future. Globe valve, also known as cut-off valve, is a mandatory sealing valve, so when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from under the valve disc, the resistance that the operating force needs to overcome is the friction force between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve, so the valve stem The diameter of the valve should be large, otherwise the failure of the top of the valve stem will occur. According to the connection method, it is divided into three types: flange connection, thread connection and welding connection. After the appearance of the self-sealing valve, the medium flow direction of the globe valve is changed from the top of the valve disc into the valve cavity. At this time, under the action of the medium pressure, the force to close the valve is small, but the force to open the valve is large, and the diameter of the valve stem can be adjusted accordingly. decrease. At the same time, under the action of the medium, this form of valve is also tighter. my country's valve "Three Chemicals" once stipulated that the flow direction of the globe valve should be from top to bottom. When the globe valve is opened, the opening height of the valve disc is 25% to 30% of the nominal diameter. The flow rate has reached the maximum, indicating that the valve has reached the fully open position. Therefore, the fully open position of the globe valve should be determined by the stroke of the valve disc. Shut-Off Valve,Shutoff Valve,Automatic Shut Off Valve,Auto Shut Off Valve Jiangsu Qiantu Trading Co., Ltd. , https://www.qiantupump.com