Hebei turbine flowmeter | How to measure current with turbine flowmeter

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What is the approximate price of a rotor flowmeter?

2. How to measure current with a turbine flowmeter

The turbine flowmeter itself does not directly measure current, but can determine the system status by measuring the 4-20mA signal it outputs.. Before preparing tools and conducting environmental safety measurements, it is necessary to use a multimeter (with a range covering 4-20mA) and ensure that the system is powered off. When operating, it is recommended to wear insulated gloves first to avoid risks caused by live working. 2. Open the junction box of the turbine flowmeter at the positioning signal output end and find the terminals marked with "+" (positive pole) and "-" (negative pole), which are the current signal output interfaces. Some models may be labeled as "OUT" or "IO", please refer to the device manual for confirmation.

3. Multimeter configuration and circuit disconnection: Set the multimeter to DC A mode, insert the red probe into the "mA" socket, and connect the black probe to "COM". Disconnect the wires of the flowmeter output circuit and connect the multimeter in series to the breakpoint, ensuring that the red probe is connected to the positive terminal of the signal

4. Dynamic measurement and data observation. After restoring power to the system, the multimeter will display the current value in real time. If the reading fluctuates within the range of 4-20mA, it indicates that the flow meter signal is normal; If the value is abnormal (such as below 4mA or exceeding 20mA), it is necessary to investigate sensor faults or power supply issues. After finishing and restoring the measurement, turn off the power first, disconnect the multimeter connection, and reconnect the

original wire. For long-term monitoring, it is recommended to use signal collectors instead of manual measurements to reduce the interference of frequent operations on the system.

3. What are the measurement ranges of turbine flow meters?

1、 Turbine flowmeter is based on the electromagnetic induction generated by the rotation of turbine blades inside the flowmeter to measure the flow rate. It can measure both liquids and gases, and is very sensitive. The diameter for measuring liquids is generally DN4- DN200, and for measuring gases it is generally DN20- DN300;

2、 Turbine flowmeter measures liquids with a very small diameter and good economy. The units are generally m3/h (cubic meter/hour), L/min (liter/base silver minute), etc. It has instantaneous flow display and cumulative flow display;

3、 The measurement range corresponding to different diameters of turbine flow meters is: liquid measurement: (unit of measurement: m3/h): DN4: 0.04--0.25; DN6：0.1---0.6； DN10：0.2---1.2； DN15：0.6---6； DN20：0.8---8； DN25：1---10； DN32

1.5---15； DN40：2---20； DN50：4---40； DN65：7---70； DN80：10---100； DN100：20---200； ..... Gas measurement: (unit: m3/h): DN20:5-40; DN25：7.2---60； DN32：12---100； DN40：18---150； DN50：30---300； DN65：50---420； DN80：70---600； DN100：120---1000； ..... For more detailed information, please refer to the technical article on the website of Shandong Qiangsheng Automation Technology Co., Ltd.... Www.qszdh.com

4. How to wire turbine flowmeter

Turbine flow sensor/transmitter (LWGY - □ N type, LWGY - □ A type) 1. Hehui basic type LWGY - □ N type "24V+" (red wire tracing) connected to DC24V positive terminal; Connect the "power supply -" (whit