Ultrasonic level gauges need to set parameters before use, and there are certain differences in the parameter settings of different types of ultrasonic level gauges. The parameters of the ultrasonic level gauge are determined by the information in the manual. The following editor will introduce how to set the parameters of the ultrasonic level gauge.1. What is an ultrasonic level gauge?The ultrasonic level gauge is a digital level gauge controlled by a microprocessor.The ultrasonic pulse in the measurement is sent out by the sensor (transducer). After the sound wave is reflected by the liquid surface, it is received by the same sensor and converted into an electrical signal by a piezoelectric crystal. The sensor and the measured liquid are calculated based on the time between sound wave sending and receiving The distance from the surface. Due to the non-contact measurement, the measured medium is almost unlimited, and it can be widely used for height measurement of various liquids and solid materials.The ultrasonic level gauge is composed of three parts: an ultrasonic transducer (detector), a drive circuit) and an electronic liquid crystal display module.Ultrasonic level gauge parameters2. How to set the parameters of ultrasonic level gauge?1. 20mA setting of ultrasonic level gaugeWhen the ultrasonic level gauge is working normally, press the Mode key to enter the parameter setting menu, press the key to select the P02 menu, the number in the second line will change to the level corresponding to 20mA, and press the OK key to set.1. Setting of display modeThe P03 menu can change the display mode, and you can choose from 3 display modes.(1) 00 shows liquid level2) 01 display distance(3) 02 Display distance and temperaturePress the key to select the desired mode and press the OK key to confirm.3. The height of the ultrasonic level gauge probeThe P04 menu can display the height of the probe, you can check whether the height of the probe meets the on-site situation, and it can also be used for liquid level calibration. Directly change the height of the probe according to the site conditions.3. What is the working principle of ultrasonic level gauge?The working principle of the ultrasonic level gauge is that it encounters the high-frequency pulse sound wave emitted by the ultrasonic transducer (detector) and the foldback reflection echo reflected on the surface of the object to be measured is converted into the electrical signal received by the transducer, the sound wave The propagation time of the sound wave is proportional to the distance of the sound wave sent to the surface of the object.Since the transmitted ultrasonic pulse has a width, the reflected wave in a small area close to the transducer overlaps with the transmitted wave and cannot be identified, and the distance value cannot be measured. This area is called the measurement dead zone. Mianter believes that the size of the dead angle is related to the model of the ultrasonic level gauge.
Ultrasonic level gauge parametersThe detector part emits ultrasonic waves, and the ultrasonic waves are reflected when they encounter a medium whose density is very different from that of the air. The reflected waves are received by the detector part again. The distance from the detector to the liquid (object) surface is proportional to the elapsed time of the ultrasonic waves.Distance = time speed of sound / 2 metersSpeed of sound temperature compensation: ambient sound speed = 331.5 0.6 The parameter setting of the temperature ultrasonic level gauge has certain requirements, and it needs to be set in consideration of the actual situation. In addition, let’s take a look at the products on the official website. Quality services are guaranteed.
Post time: 21-09-21