Is there a requirement for the insertion depth of the Cologne ultrasonic flowmeter probe during installation?

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1. Wiring diagram of ultrasonic flowmeter

Ultrasonic flowmeter wiring is mainly divided into two parts: host wiring and probe wiring. There are differences between different brands and models, and it is necessary to follow the product manual for accuracy. 1. Power input for host wiring: Supports AC 220V or DC 24V power supply. Choose one of them according to the wiring diagram. Sensor interface: - Downstream probe connected to

2. Terminal 3 (GND, DN -, DN+), usually only need to be connected to DN - and DN+(terminals 2 and 3) - Upstream probe connected to

5. Terminal 6 (GND, UP -, UP+), usually only need to be connected to UP - and UP+(terminals 5 and 6) 4-20mA output: AO terminal connected to signal positive pole, QR code 24V - terminal connected to signal negative pole 485 communication: connect 485 OUT A and 485 OUT B terminals. Function of Chunzi heat meter: - Water supply terminal connection TX

1. T

1. GND - Return terminal connection TX

2. T

2. GND (supply and return GND common connection) Relay output: Connect RELAY+and RELAY - terminals 2. Probe wiring Probe cables usually include shielded wires, signal positive (+) and signal negative (-) terminals. Conventional connections only require connecting the+and - terminals, and shielded wires can be omitted. Due to possible differences in terminal definitions and wiring methods among different manufacturers, please make sure to check the wiring diagram provided in the instruction manual before actual wiring.

2. What are the types of mass flow meters

3. Measurement principle of handheld ultrasonic flow meter

Handheld ultrasonic flow meter mainly adopts the time difference measuremen

t principle, and its core is to calculate the flow rate and flow volume by analyzing the time difference of ultrasonic signal propagation in the fluid. Specifically, the two probes of the signal transmission and reception path flow meter are installed at symmetrical positions on the outer wall of the pipeline.. A probe emits ultrasonic signals, which pass through the pipe wall, fluid medium, and the other side of the pipe wall in sequence before being received by a second probe; Meanwhile, the second probe emits signals in the same way and is received by the first probe. This process forms two propagation paths: upstream and downstream. The generation mechanism of the time difference Δ t is that when the flowing silver collides with the stationary finger, the propagation time of the upstream and downstream is equal; When the fluid flows, the propagation speed of ultrasonic waves in the downstream direction (in the same direction as the flow velocity) increases and the time is shortened; The propagation speed slows down in the counter current direction (opposite to the flow velocity) and the time is prolonged. The time difference Δ t between the two is directly related to the fluid flow velocity V, and the larger the flow velocity, the more significant Δ t. The formula for calculating flow velocity is based on the principle of time difference. The conversion relationship between flow velocity V and time difference Δ t is: V=(C ²/2L) × Δ t, where C is the propagation velocity of ultrasonic waves in the medium (determined by the properties and temperature of the medium); L is the effective propagation distance between two probes (related to the diameter of the pipeline and the installation position of the probes). This

1. Wiring diagram of ultrasonic flowmeter

2. What are the types of mass flow meters

3. Measurement principle of handheld ultrasonic flow meter

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