Thread Content
Explanation of terminal symbols for integrated electromagnetic flowmeters: (1) Instrument power supply: The live wire of AC220V is connected to the “L” terminal, and the neutral wire is connected to the “N” terminal. (2) Output signal: When the electromagnetic flowmeter outputs a 4-20mA signal, the positive pole is connected to the “I+” terminal, and the negative pole is connected to the “COM1” terminal ； When the fire water flow meter outputs a frequency signal, the positive pole is connected to the “P+” terminal, and the negative pole is connected to the “COM2” terminal. (3) Alarm output: The upper limit alarm output is connected to terminal “AH”, while the alarm ground is connected to terminal “COM2” ； The lower limit alarm output is connected to the “AL” terminal, while the alarm ground is connected to the “COM2” terminal. (4) FUSE: Instrument power fuse (1A). (5) RS485 communication: The RS485 communication is connected to the “T+” and “T-” terminals. Terminal symbols for split-type electromagnetic flowmeters: (1) Instrument power supply: The live wire of AC220V is connected to the “L” terminal, while the neutral wire is connected to the “N” terminal. (2) Output signal: For electromagnetic flowmeters that output a 4-20mA signal, the positive terminal is connected to the “ICOUT” terminal, the negative terminal is connected to the “ICOM” terminal, and the “INSW” terminal remains unconnected ； When the fire water flow meter outputs a frequency/frequency signal, the positive terminal is connected to the “PUL+” terminal, and the negative terminal is connected to the “PCOM” terminal. (3) Alarm output: The upper limit alarm output is connected to the “ALM+” terminal, while the alarm ground is connected to the “ALCOM” terminal ； The lower limit alarm output is connected to the “ALM-” terminal, while the alarm ground is connected to the “ALCOM” terminal. (4) Excitation coil: The sensor’s excitation coil is connected to the “EXT+” and “EXT-” terminals; the “INSW” terminal is not connected to anything. (5) Sensor signal: “DS1” and “DS2” are connected to the sensor signal wires, while “SGND” is connected to the external shielding wire. (6) Signal electrodes: “SIG1” and “SIG2” are connected to the sensor’s signal electrodes, while “SGND” is connected to the external shielding wire. (7) RS485 communication: RS485 communication is connected to the “TSR+” and “TSR-” terminals. For more information, please visit the company’s official website at http://www.yb1518.com/. Please retain this link when reproducing the content! http://www.yb1518.com/UploadFiles/201411514239652.jpg