WTL-A1 Ultrasonic Open Channel Flow Meter

NegotiableUpdate on 09/22

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The physical quantity directly measured by the WTL-A1 instrument is the liquid level. When used for measuring flow in open channels, a measuring weir groove is installed on the open channel. The measuring weir channel converts the flow rate in the open channel into the height of the liquid level. The instrument measures the water level in the measuring weir tank, and then calculates the flow rate based on the corresponding water level flow relationship of the measuring weir tank. Application fields: mainly used to measure the flow rate of sewage discharge outlets of sewage plants, enterprise and government liquid units, and urban sewers

Product Details

Built in multiple algorithms, suitable for various standard measuring weirs.

Durable and stable sensors are suitable for harsh industrial environments.

• The advanced algorithm integrating rich field experience can effectively overcome foam, surge and other field disturbances.

The ultrasonic transducer adopts imported piezoelectric ceramic materials and acoustic matching technology to improve emission efficiency.

The transducer is equipped with a built-in temperature sensor to achieve real-time automatic temperature compensation of the measured values.

Blind spots can also be manually set to block interference signals near the probe.

High brightness graphic LCD can display measurement results in both digital and graphic formats simultaneously.

Chinese menu with easy button operation.

4~20mA isolated current output, optional fieldbus interface.

Control relay output and alarm relay output.

Range: 10L/s~10m3/s (determined by the specifications of the dosing weir).

Accumulated traffic: 8-bit decimal number, automatically returns to zero after accumulating 8 digits, recalculated.

Liquid level range: 0.4~2m.

Blind spot: 0.4m

Resolution: 0.001m.

Accuracy: 5% (with an uncertainty of 1-3% for measuring water weirs, plus an additional 1-2% instrument measurement error).

Repeatability: 0.1%.

Temperature compensation: automatic temperature compensation.

Display: LCD displays date, time, measurement values, historical records, etc.

Analog output: isolated 4-20mA, maximum load 500 Ω.

Output content, flow rate, and liquid level are optional.

Relay output: single pole double throw, close one for each cumulative set m3

Next, liquid level alarm, liquid level upper limit, and liquid level lower limit are optional.

Relay capacity: AC250V 1A; DC30V 1A。

Digital interface: RS0232 or RS-485.

On site setup: completed through transmitter buttons.

AC power supply: 220V ± 10% 6W

Attachment diagram	Model and Description	Remarks
	model; WTL-T1
	parshall flume	Once Bacher's groove knows the throat width b, it can be done Calculate the corresponding relationship between water level and flow rate using the corresponding formula
	triangular weir	There is a corresponding formula for a right angled triangular weir. But it's still related to the installation The channel size is related. When determining the water level flow relationship, Triangle weir and channel width B, opening angle, upstream weir sill The height is related to p.
	rectangular weir	Rectangular weirs also have corresponding formulas. But still It depends on the size of the installation channel. Determine water level flow When measuring, the rectangular weir and channel width B, as well as the opening width b、 The height of the upstream weir is related to p.

1. Install the instrument
The instrument display part of the flowmeter should be installed indoors. Indoor ventilation should be good and there should be no corrosive gases. The instrument is wall mounted.
2. Install the probe
The probe of the ultrasonic open channel flowmeter can be directly installed above the water level observation point of the measuring weir. The side of the probe that emits sound should be aimed at the water surface. You can place a level ruler on top of the probe and align it with the water surface by leveling the cover. The water level observation point of Bacher trough is located at a distance of 2/3 of the contraction section of the throat (La in Figure 15); Triangle weir and rectangular weir are located on the upstream side, 3-4 times the maximum water depth passing through the weir plate.