HOH-L-02 Time Difference Open Channel Flow Meter

1Equipment Composition

Components: several sets of flow rate sensors, water level sensors, upper computer (host), installation accessories, and cables

IIEquipment principle

The product has three functions: measuring average flow velocity, measuring water depth, measuring water temperature, and can display cross-sectional flow rate.

The flow velocity measurement adopts the principle of time difference ultrasonic measurement (ultrasonic waves propagate in the direction of liquid flow and opposite directions)

Measure the average flow velocity in water by using multiple flow velocity measurement layers (multi-channel) distributed on the flow measurement section to measure the speed difference

The pressure type water level gauge, ultrasonic water level gauge, or radar type water level gauge measures the water level, and the upper computer calculates the cross-sectional area of the water passage through the water level,

And calculate the cross-sectional flow rate based on the hydraulic model.

IIIApplication scope

4equipment installation

Ultrasonic flow velocity sensor:
*Measurement principle: Time difference method for continuous measurement
*Measurement channel: 1 channel to 8 channels, rotatable
*Adaptability: capable of measuring wastewater containing solid substances
*Measurement accuracy of flow velocity: 1.0%
*Flow velocity range: ± 10m/s
*Measure channel width: Time difference method 0.5-10 meters
*Time difference measurement resolution: 40 picoseconds
*Environmental temperature: -20~70 ℃
*Working temperature: -20~70 ℃
*Medium temperature: -20~80 ℃
*Protection level: IP68

Ultrasonic liquid level sensor:
*Measurement accuracy: 1.0%
*Measurement range: 0-10m
*Resolution: 1.0mm
*Environmental temperature: -20~70 ℃
*Working temperature: -20~70 ℃
*Medium temperature: -20~80 ℃
*Protection level: IP68

Host computer:
*Data display: LCD screen display, keyboard input
*Power supply voltage: AC220V ± 20% or DC12-28V
*Whole machine power consumption:<20W
*Display content: flow rate, cumulative flow rate, flow rate, liquid level, signal, etc
*Output signal: 4-20mA, pulse RS232/485
*Environmental temperature: -20~70 ℃
*Working temperature: -20~70 ℃
*Relative humidity: 10-90%
*Protection level: IP65
*Installation method: Wall mounted
*Distance between host and sensor: 200 meters