Ultrasonic level instrument is a long, absorbing the advantages of many kinds of object level instruments at home and abroad.It is a universal type of object level instrument with full digitization and humanized design concept. It has perfect functions of object level measurement and control, data transmission and man-machine communication.The transducer is made of original parts from Germany, and the main chip is made of imported industrial-grade single chip, digital temperature compensation and other special integrated circuits.With strong anti-interference, can arbitrarily set the upper and lower limit nodes and online output adjustment, and with the field display, analog quantity, switching quantity and RS485 output optional, can be convenient to connect with the host.The case of ultrasonic level meter adopts waterproof case, the probe part adopts PP, the case is compact and quite strong.Its circuit motherboard adopts high quality SMT components and SMT keyboard, which makes the product performance more stable and reliable.Therefore, it can be widely used in various fields related to material level and liquid level measurement and control.Use before installation need to pay attention to some details on the measurement accuracy of normal use has certain effect. 1.The propagation speed of ultrasonic liquid level meter in gas is affected by gas temperature, so it is necessary to detect gas temperature when ultrasonic liquid level meter works and compensate the sound velocity to ensure the measurement accuracy.When the ultrasonic level meter transmits the ultrasonic pulse, the reflected echo cannot be detected simultaneously.Since the transmitted ultrasonic pulse has a certain time width, and the sensor still has residual vibration after the transmission of ultrasonic wave, the reflected echo cannot be detected during this period. Therefore, a small distance from the probe surface downward cannot be detected normally, which is called the blind area.If the measured object level enters the blind area, the instrument will not be detected correctly and there will be an error.If necessary, the object level meter can be raised and installed.

2. After installation, the equipment must be grounded separately, not with the common ground of the electrical box or instrument box.

3. Suggestion: When ultrasonic level meter is connected with inverter, PLC and other interfered equipment, the power part should add isolating transformer, the signal part should add signal isolating device, and do reliable grounding processing.

4. The signal line shall not be in the same slot with the power line and power line, and shall be installed separately through the metal pipe, or installed far away from the power line and power line. In the absence of tube installation, the distance from the power line and power line shall be at least one meter or more.

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