一、Packaging & Delivery

Selling Units:  Single item

Single package size: ： 39*26.5*16.5cm

Single gross weight:1.500 KG

1、 Product introduction

The acoustic medium is used for non-contact and wear-free detection of the detected object.

Ultrasonic water level meter is mainly used to detect sewage, river water and clean water, and can measure the distance value from the sensor emission surface to the water surface.

The protection grade of the product reaches IP68 level, and it can be soaked in water for a long time within 10 meters without damage. (note that the outgoing part of the instrument cable needs to be reliably sealed after field wiring to avoid water intrusion)

2、 Measuring principle

The ultrasonic pulse emitted by the ultrasonic probe propagates to the water surface to be measured through the air, and then returns to the ultrasonic probe through the air after reflection, because the transmitting and receiving time can be known. According to this time × sound speed △ 2 = the distance between the probe's transmitting surface and the water surface.

Calculation formula: D = C * t / 2

(divide by 2 because it's actually a round trip from transmitting to receiving, D is the distance, C is the speed of sound, t is the time).

If the time difference between transmitting and receiving is 0.01 seconds, the sound speed is 340m / s.

340 m / s × 0.01 s = 3.40 M

3.40 m ÷ 2 = 1.70 M

That is to say, the distance between the shooting surface of the probe and the water surface is 1.70 meters.

3、 Product features

High protection grade: IP68.

Short response time

The address is set by RS485

Rich output mode: analog quantity or RS485, related to power supply voltage.

4、 Main technical specifications

Measuring range: 1m, 2m, 3M, 4m, 5m, 6m, 7m, 8m;

Measurement output results: the distance value between the shooting surface of the probe and the measured water surface;

Sensor thread: according to the different measurement range, the thread is different;

Blind area range: according to different measurement range, the blind area is different;

Power supply voltage: DC 24 V, output 1 channel 4-20 mA or 1 channel RS485 Modbus protocol;

Power supply voltage: DC 12V, output 1 channel RS485 Modbus protocol;

Display: no display

Supporting cable length: 1m

Cable outlet: 4 cores

Working environment temperature: - 20 ～ + 60 ℃;

Working environment pressure: a standard atmospheric pressure;

Working environment humidity: ≤ 90% RH, non condensing;

IV. Shape and wiring

5.1 product appearance

① The external dimensions of products with different measuring ranges will be different.

5.2 wiring mode

① 4 ～ 20mA outgoing mode

Power supply: red line: 24 VDC +    black line: 24 VDC –

4 ～ 20mA: yellow line: Ma +        blue line: Ma --

② 485 communication connection mode

Power supply: red line: 24 VDC +        black line: 24 VDC –

485 communication: blue line: T / R +   yellow line: T / R --         

4.2 Installation Guide

4.2.1 Understand terminology

①Measuring range: the meaning of measuring range is very important for meter type selection. Please refer to the diagrams below.

V. Field cases:

Product application:

Mainly used in sewage plant, water plant, mine, water conservancy, power plant, chemical plant, steel plant

The monitoring of waterlogging and water, sewage quality, urban pipeline and rainfall station in the construction of smart city project; applicable to the monitoring of rainfall point of existing water conservancy projects, river water and rain monitoring, reservoir water and rain monitoring, flow station, irrigation area, open channel monitoring, etc.; automatic monitoring of water plant, on-line water quality monitoring and secondary water supply monitoring of smart water project; suitable for intelligent water project It is used for the monitoring of collapse and landslide points, debris flow and surface water level of geological disaster projects

VI. Manufacturer: