MaxBotix MB7851-B20 Ultrasonic Tank Level Sensor

Features of the weather-resistant MB7851, Tank Sensor, include millimeter resolution, short to long-distance detection, range information from 50 mm to 5000 mm for liquid level detection, a ~2Hz read rate, and three simultaneously available outputs: a real-time analog voltage envelope, a scaled analog voltage, and serial communication in either RS232 or TTL format. The MaxBotix MB7851 Tank Sensor is a low‑cost liquid-level monitoring sensor that uses ultrasonic technology for non-contact sensing. The MB7851 is designed to be an easy-to-use sensor for applications where liquid-level detection is desired. This sensor is great for use in containers that are typically difficult for ultrasonic devices such as tanks, barrels, and bins. This is because the MB7851 has a teaching feature (only available if using serial communication), that can train the sensor to what an empty container looks like. This helps allow the sensor to range properly even in the presence of otherwise detectable obstructions like corrugation. The MaxBotix MB7851 is factory calibrated to match sensor beam patterns and provide reliable long-range detection zones. In addition, the MaxBotix MB7851 offers virtually noise-free distance readings through the use of high-output acoustic power combined with continuously variable gain, real‑time background automatic calibration, real‑time waveform signature analysis, and noise rejection algorithms. This holds true even in the presence of many of the various acoustic or electrical noise sources.

 Application:

1. Tank level measurement
2. Environments with acoustic and electrical noise
3. Liquid Distance Measuring
4. Industrial sensor –40°C to +65°C

Note: For more technical details go through Datasheet in the attachment section

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Features:

1. Real-time auto sensitivity adjustment and noise rejection
2. High acoustic power output
3. Precise narrow beam characteristics
4. Liquid detection includes zero range
5. 3V to 5.5V supply with the very low average current draw
6. Free-run operation can continually measure and output range information
7. 1.95Hz (MB7851) refresh rate
8. Triggered operation provides the range reading as desired
9. All interfaces are active simultaneously
10. RS232/TTL Serial, 0 to Vcc, 9600 Baud, 81N
11. Analog voltage output, scaled to (Vcc/1024) / cm
12. Sensor operates at 42KHz

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Package Includes:

1 x MaxBotix MB7851 High-Performance Tank Level Ultrasonic Sensor