Product Introduction
SCJ-LL01 is a contact flow measurement equipment suitable for open channels, full pipes, non-full pipes, and natural rivers, which has the advantages of easy installation and operation, high precision, low power consumption, and maintenance-free.
How it works
How a Doppler ultrasonic flowmeter works. The transmitting transducer T emits ultrasonic waves of a certain frequency to the bubbles and solid particles in the flowing liquid to produce scattered waves, and the scattered waves are received by the receiving transducer R, and its frequency change is proportional to the moving speed of the particles (or bubbles) (because the transducer has a certain directionality, the received scattered signal is basically emitted from near the center of the pipe). The relationship between the Doppler shift d and the flow velocity is shown in the following formula: Doppler ultrasonic flowmeter, which consists of an ultrasound flow transducer and a controller. The dual-frequency Doppler flowmeter is a new product whose controller enables the transducer to intermittently generate two continuous wave acoustic signals of different frequencies for a short period of time.
Key features:
1. High measurement accuracy and strong data stability.
2. Integrated monitoring of water level, flow, flow rate and water temperature
3. It can measure the flow rate of circular, rectangular, trapezoidal and triangular sections
4. Support RS485 Modbus
5. IP68 protection level, support long-term underwater work
6. Hardware forward and reverse flow rate judgment, support forward and reverse flow measurement
7. It can measure natural or artificial channels, rivers and pipelines
8. The size is small, the probe can be measured when the probe is flooded, and it is easy to install
9. Purely physical measurement, no calibration, no calibration.
Product parameters
Measuring principle: Doppler effect, velocity area method
1. Flow velocity measurement range: ±0.01~6m/s (expandable), flow velocity measurement accuracy: ±1%±0.01m/s, resolution 1mm/s
2. Water level measurement range: 0~10m (expandable) Water level measurement accuracy: ±1cm, resolution: 1mm
3. Flow measurement range: 0.001~999999999m³/h, flow measurement accuracy: ±2-3% (different according to section shape), resolution: 0.001m³/h
4. Temperature measurement range: -20-65°C, temperature measurement accuracy: ±0.5°C, resolution: 0.1°C
5. Power supply range: 6-24V
6. Power consumption: ≤1W
7. Data refresh rate: 1HZ
8. Interface: RS485Modbus
9. Cable: 4 core cable + 1 core air duct, shell material: ABS
10. Protection level: IP68
11. Working temperature: -20—65°C (no freezing)
12. 1 special cable of 20 meters is standard
Application scenarios
It is mainly used in urban drainage pipe network, sewage discharge, natural rivers, open channels, reservoir import and export, sponge city, scientific research, etc
Installation case
