MB7850 XL-TankSensor-WRMA

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High Performance Tank Level Sensor

Product Description

Features of the weather resistant MB7850, Tank Sensor, include centimeter resolution, short to long distance detection, range information from 5cm to 650cm for the liquid level detection, a ~4Hz 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 MB7850 Tank Sensor is a low‑cost liquid level monitoring sensor that uses ultrasonic technology for non-contact sensing. The MB7850 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 MB7850 has a teach feature (only available if using serial communication), that can train the sensor 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 MB7850 is factory calibrated to match sensor beam patterns and provide reliable long-range detection zones.

In addition, the MB7850 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.

Product Specifications

  • Resolution of 1 cm
  • ~4Hz read rate
  • 42kHz Ultrasonic sensor measures distance to objects
  • RoHS Compliant
  • Read from all 3 select sensor outputs: Analog Voltage, Serial, Analog Envelope
  • Operates from 3.0-5.5V
  • Low 1.8mA average current requirement
  • Light weight module
  • Designed for easy integration into your project or product
  • Operational Temperature from -40˚C to +65˚C (-40˚F to +149˚F)
  • Real-time automatic calibration (voltage, humidity, ambient noise)
  • Firmware filtering for better noise tolerance and clutter rejection
  • 20+ Years Mean Time Between Failure
  • Weather Resistant (IP67), optional Chemical Resistant F-Option
  • Sensor connection end matches standard electrical 3/4-inch PVC pipe fittings for easy mounting (3/4″ National Pipe Thread Straight)
  • Horn opening matches standard 2-inch PVC pipe fittings for easy mounting (2″ National Pipe Thread Straight)
  • Our advanced weather resistant, ultrasonic sensor
  • Additional stability filter rejects occasional anomalous readings
  • Detects the largest signal return in the field of view
  • Uses the complete dynamic range of the sensor, if no large targets are present the sensor will select the next smallest target in view
  • Can be used to range large objects behind small obstructions
  • Analog envelope output for easy troubleshooting and signal processing
  • Maximum range of 650 cm (256 inches)
  • Long range, narrow detection zone
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

Product Documents

MB7850 DatasheetTank Sensor-datasheet
Application Notes
Terminal SoftwareTerminal.zip
USB ConfigurationTerminal Configuration
Sensor Selection GuideSensor Selection Guide
RoHS ConformityRoHS Declaration of Conformity
CE Declaration of ConformityCE Declaration of Conformity
Reliability DemonstrationMTBF Report

Part Numbers

All part numbers are a combination of a six-character base followed by a dash and a three-digit product code. Please review the following table for more information on the three-digit product code.

MB7850B20
Base
Housing Style
0Not Applicable
13/4″ NPS WR
23/4″ NPS WRC
3Ultra Compact
4Ultra Compact Flush Mount
51″ NPS
61″ BSPP
730MM 1.5
8Extended Horn
BFolded Horn
Options Selected
0No Options (Bagged)
1F-Option
2P-Option
3F-Option and P-Option
4No Options (Trayed)
5TTL (Bagged)
6TTL (Trayed)
Wire Attach
0No Wire Attach
1Wire Attached

The following table displays all of the active and valid part numbers for this product.

Active Part Numbers
MB7850-B20MB7850-B21MB7850-B30MB7850-B31

MaxBotix Inc.

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