How to wire the fire flowmeter | Fire specific pressure shut-off digital, with four wires for 24V output, how to wire it

『How to wire the fire flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. How to wire the flow switch of the rooftop fire water tank?

This guy only looks like a vortex flowmeter. Generally, there will be a functional description of the terminal post on the top of the cover section of the Qi Na Zi without it. Some are direct reading, while others require the connection of measuring instruments. The power supply is usually connected to an external DC 24V. Im not sure about the situation, so its not easy to say casually.

2. Firefighting dedicated pressure switch digital, with four 24V output wires, how to wire them

The two wires of the pressure switch are directly connected to the control cabinet to start the pump, and the other group is connected to the input module feedback..

3. The correct method for installing a fire ultrasonic flowmeter is to select a straight pipe section with full fluid flow and smooth flow, ensuring that there are straight pipe lengths of 10 times and 5 times the pipe diameter upstream and downstream, avoiding flow disturbances such as valves and elbows, and staying away from interference sources such as pumps and frequency converters.

. Before installing the sensor, the surface of the pipeline needs to be polished smooth, coated with coupling agent, and fixed with fixtures. Depending on the diameter of the pipe, the V method (≤ DN100) or Z method (>DN10

0) should be selected for installation. Adjust the position to ensure that the signal intensity is greater than 60 and the transmission time is stable within the range of 100 ± 3. Finally, perform zero point calibration. The installation position should be preferably selected in the middle of the vertical or horizontal pipe section to avoid gas accumulation at the top of the pipeline or scale buildup at the bottom, which may affect the measurement. It is strictly prohibited to install on the highest point of the pipeline or on vertical pipes with free outflow. For non full pipe conditions, it should be installed in U-shaped pipe sections. Cast iron pipes and rusted steel pipes must be thoroughly inspected and polished to a metallic luster, while plastic pipes require the use of specialized coupling agents. There should be no air bubbles or sand particles between the sensor and the pipeline, and the clamping fixture should be moderately tightened to ensure good contact. When wiring, connect the power supply, signal line, and 4-20mA output according to the instructions, and ensure that the shielding layer is reliably grounded. After installation, check if all connection points are secure, confirm that the instrument display is normal and there are no alarm messages, and regularly maintain, clean, and calibrate to ensure long-term stable operation.

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