1、 Characteristics of Ultrasonic Level Gauge

1. Choose professional ultrasonic small angle probes with high transmission power, high sensitivity, long lifespan, and long measurement distance;

2. The upper and lower limits of any point can be set, and the reverse value can be set (the distance between two points can be set within the range of 4-20mA or 0-5V, and the sensor can be easily installed and debugged to meet various signal connection requirements). The online calibration of distance accuracy can be used for liquid level control of water, alcohol, sugar, beverages, etc.

3. The output modes include 4-20MA or 0-5V output, and 0-10V output. Digital signal: RS232 (three wire)/RS485 (choose one, agreed upon at the time of ordering) The secondary display instrument is an intelligent digital display instrument with multiple functions, among which the upper and lower limit setting function can enable automatic control and alarm of liquid level and level.

4. The distance or depth data is directly displayed on the LED digital tube for easy on-site measurement and comes with temperature display.

5. Fully enclosed design, suitable for outdoor use, can directly measure liquids.

6. High cost-effectiveness and ultra-low price

2、 Installation of Ultrasonic Level Gauge

When the transducer emits ultrasonic pulses, there is a certain emission angle. There should be no obstacles in the area radiated by the emitted ultrasonic beam from the lower edge of the transducer to the surface of the measured medium. Therefore, installation should avoid facilities inside the tank as much as possible, such as ladders, limit switches, heating equipment, brackets, etc.

Additionally, it should be noted that the ultrasonic beam must not intersect with the feeding material flow.

When installing instruments, it is also important to note that the high material level should not enter the measurement blind zone; The instrument must maintain a certain distance from the tank wall; The installation of the instrument should be as perpendicular as possible to the emission direction of the transducer and the liquid level.

3、 Problems in Ultrasonic Level Gauge Measurement

The application principle of ultrasonic sensors is simple, convenient, and the cost is also very low. However, current ultrasonic sensors have some drawbacks, such as reflection issues, noise, and cross-over problems.

1. Reflection problem:

If the detected object is always at the appropriate angle, the ultrasonic sensor will obtain the correct angle. Unfortunately, in practical use, very few detected objects can be accurately detected.

2. Cross disciplinary issues:

The cross problem is caused when multiple ultrasonic sensors are installed at a certain angle on a robot