The usage method of the electrode flow meter

Electrode flow meter is a new type of flow measurement instrument developed rapidly with the development of electronic technology in the 1950s and 1960s .Electrode flow meter is a kind of instrument to measure the flow of conductive fluid according to the electromotive force generated when the conductive fluid passes through the external magnetic field based on the principle of electromagnetic induction .

Usage method ：

When the instrument is powered on, it will enter the measurement state automatically. In the automatic measurement state, the electromagnetic flowmeter automatically completes each measurement function and displays the corresponding measurement data. In the parameter setting state, the user uses four panel keys to complete the instrument parameter setting.

1、按键功能

1. Key function ：

1.1 key function in automatic measurement state down key: cycle to select the down display content of the screen; up key: cycle to select the up display content of the screen; compound key + confirm key: enter the parameter setting state; confirm key: return to the automatic measurement state; in measurement state, adjust the contrast of LCD display: small LCD is pressed for several seconds through "compound key + up key" or "compound key + down key"; The large liquid crystal is realized by adjusting the potentiometer on the back of the large liquid crystal.

1.2 in parameter setting state, key function down key: number at cursor minus 1; up key: number at cursor plus 1; compound key + down key: cursor moves left; compound key + up key: cursor moves right; confirm key: Enter / exit submenu; confirm key: in any state, press continuously for two seconds to return to automatic measurement state.

注：1.使用“复合键”时，应先按下复合键再同时按住上“上键”或“下键”

Note:

a. When using the "composite key", first press the composite key and then press and hold the "up key" or "down key" at the same time

b. In the parameter setting state, if there is no key operation within 3 minutes, the instrument will automatically return to the measurement state.

3.流量零点修正的流向选择，可将光标移至最左面的“+”或“—”用“上键”或“下键”切换使之与实际流向相反。

c. For flow direction selection of flow zero correction, move the cursor to "+" or "-" on the leftmost side, and use "up key" or "down key" to switch to make it opposite to the actual flow direction.

4.流量的单位选择，可将光标移至“流量量程设置”菜单的原显示的流量单位下，然后用“上键”或“下键”切换使之符合需要

d. To select the flow unit, move the cursor to the original displayed flow unit in the "flow range setting" menu, and then use the "up" or "down" switch to make it meet the needs

2. To set or modify the parameters of electromagnetic flowmeter, the operation of parameter setting function key must make the flowmeter enter the parameter setting state from the measurement state. In the measurement state, press the "composite key + confirm key" to display the state conversion password (0000), and modify it according to the password provided by the manufacturer according to the confidentiality level. Press "compound key + confirm key" again to enter the required parameter setting state. Installation of intelligent electromagnetic flowmeter sensor on process pipeline

1.智能型电磁流量计测堵管在任何时刻必须完全注满介质，不能在不满管或空管的情况下正常工作。在介质不满管时，可采用抬高流量计后端出水管高度的方法使介质满管，避免不满管及气体附着在电极上。

1. The intelligent electromagnetic flowmeter must be fully filled with medium at any time, and can not work normally when the pipe is not full or empty. When the medium is not enough, the method of raising the height of the outlet pipe at the back end of the flowmeter can be used to make the medium full, so as to avoid the insufficient pipe and gas adhering to the electrode.

2.管道内有真空会损坏流量计的内衬，需特别注意。

2. If there is vacuum in the pipeline, the lining of the flowmeter will be damaged. Special attention shall be paid.

3.流动的正方向应与流量计上箭头所指的正方向一致。

3. The positive direction of flow shall be consistent with the positive direction indicated by the arrow on the flowmeter.

4.智能型电磁流量计即可在直管道上安装，也可以在水平或倾斜管道上安装，但要求二电极的中心连线处于水平状态。

4. The intelligent electromagnetic flowmeter can be installed on the straight pipe or the horizontal or inclined pipe, but the central connection of the two electrodes is required to be horizontal.

5.对于液、固两相流体，最好采用垂直安装，使被测介质自上而下流动，可使流量计衬里磨损均匀，延长使用寿命。

5. For liquid and solid two-phase fluid, it is better to use vertical installation to make the measured medium flow from top to bottom, which can make the lining of flowmeter wear evenly and extend its service life.

6.流量计在管道法兰附近确保有足够的空间，以便安装和维护。

6. Ensure that there is enough space near the pipe flange for the flowmeter to be installed and maintained.

7.若测量管道有振动，在流量计的两侧应有固定的支座。

7. If there is vibration in the measuring pipeline, there shall be fixed supports on both sides of the flowmeter.

8.测量介质为重污染液体的，在旁路管道安装流量计本体，不中断工艺运行，即可排空与清流。

8. If the measuring medium is heavy polluted liquid, install the flowmeter body in the bypass pipe, without interrupting the process operation, it can be drained and cleaned.

9.安装聚四氟乙烯内衬的流量计时，连接法兰的螺栓应注意均匀拧紧，否则容易压坏聚四氟乙烯内衬，最好用力矩扳手。

9. When installing the flow meter with PTFE lining, the bolts connecting the flange should be tightened evenly, otherwise it is easy to crush the PTFE lining. It is better to use a torque wrench.