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『Wiring method of flowmeter』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
1. Which quality flow controller should I choose?
2. How is the ultrasonic flowmeter wired?
The wiring of ultrasonic flow meters is usually very simple, and the core is "matching the right place". Basic wiring process: Preparation: Power off operation! Ensure that the flow meter and system power are completely turned off. Finding interfaces: Find the wiring terminals or interfaces on the flowmeter converter (host), which are usually clearly labeled. Connect power supply: Connect the positive (L/+) and neutral (N/-) wires of the mains (such as 220V AC) or DC power supply (such as 24V DC) to the terminals labeled "POWER" or "Power Supply". Attention: Be sure to verify the voltage level required by the equipment! Output (if any): 4-20mA output: Connect to the terminal labeled "AO" or "4-20mA", used to connect DCS, PLC or recorder. Relay output: connected to terminals labeled "DO" or "Alarm", used for alarm or control. Communication interface: RS-485 and other communication lines are connected to terminals labeled "COMM" or "RS-485" for remote communication. Inspection: After wiring is completed, carefully check whether all cables are secure and ensure that there are no short circuits or looseness. Key points and reminders: Read the instruction manual first! There may be slight differences in the wiring methods of different models of flow meters, and the instruction manual is the most accurate guide. Power is key! Connecting the wrong power supply is the most common cause of damage, and it is necessary to carefully confirm the voltage and AC/DC type. Signal line split screen: For analog signal or communication lines, it is recommended to use shielded cables and ground the shielding layer to resist interf
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3. How to wire the pulse signal output of the mass flowmeter, and how to distinguish between active signal output and passive signal output The pulse signal output from the mass flowmeter to the flow computer can be an active signal or a passive signal, determined by the type of signal received by the flow computer. Generally, it is an active signal. The active and passive connections of E+H flowmeter and Emerson flowmeter are the same, but there is a difference in signal type selection during configuration. The Huanaidan E+H flowmeter (with 1 current and 2 pulse outputs) has two sets of pulse output terminals, namely 22+and 23-, 24+and 25-, which directly correspond to the positive and negative terminals of the flow computer pulse input. The Emerson flowmeter (1 current, 2 pulse outputs) has two sets of pulse output terminals, 3+, 4-, 5+, and 6-, which correspond directly to the positive and negative terminals of the flow computer pulse input. 4. Wiring method for Cologne flowmeter 485
The wiring method for Cologne flowmeter 485 is as follows.
.1、 Connect the A, B, and ground wires of the Yunjueheng RS485 bus to the macro head of the flowmeter, where the A and B wires are respectively connected to the RS485+and RS485- terminals of the flowmeter, and the ground wire is connected to the ground terminal of the flowmeter.
2、 Next, we need to connect the A, B, and ground