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HRXL‑MaxSonar‑WR Products

MB7389 HRXL-MaxSonar-WRMT

High Performance Ultrasonic Precision Rangefinder

Product Description

The HRXL-MaxSonar-WRMT ignores smaller targets and only reports the range to target with the largest acoustic return. This is our most advanced weather resistant sensor designed for target detection and ranging outdoors or in tank or bin applications.

The HRXL-MaxSonar-WRMT sensors are equipped with filtering firmware which allows the sensor to ignore smaller targets and noise, and still report the target that gives the largest acoustic return. (The sensor will also reject periodic noise, even noise that has a higher amplitude than the acoustic return from the target.) This gives users the flexibility to consistently range larger targets in the presence of clutter and noise. If the largest target is removed from the field of view, the HRXL-MaxSonar-WRMT will switch to the target that gives the next largest detectable return.

The Most-Likely filter is designed to report the distance to the largest acoustic return while ignoring smaller targets. When targets are of similar amplitude reflections, preference is given to the closest target.

MB7380 is the standard TTL version of this sensor line.
MB7369 is the RS232 version of this sensor.

Models with additional chemical resistance are available

The F-Option (IP68) design modification provides our weather resistant sensors with extra protection against corrosive chemical environments. Ask for the F-Option (IP68) when ordering.

Product Specifiations

  • Resolution of 1-mm
  • 6.66Hz read rate
  • Internal temperature compensation
  • 42kHz ultrasonic sensor measures distance to objects
  • RoHS Compliant
  • Read from all 3 sensor outputs: Analog Voltage, Serial, Pulse Width
  • Virtually no sensor dead zone, objects closer than 30cm typically range as 30cm
  • Operates from 2.7-5.5V
  • Low 2.9mA average current requirement
  • Small, light weight module
  • Designed for easy integration into your project or product
  • Operational temperature -40°C to +65°C (-40°F to +149°F)
  • Real-time automatic calibration (voltage, humidity, and ambient noise)
  • Firmware filtering for excellent noise tolerance and clutter rejection
  • Weather resistant (IP67), optional chemical resistant F-Option
  • Matches standard electrical 3/4-inch PVC pipe fittings for easy mounting (3/4-inch National Pipe Thread Straight)
  • Long, narrow detection zone
  • Our most advanced weather resistant, ultrasonic sensor
  • Additional stability filter rejects 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
  • Best sensor for bin and tank level measurements
  • Maximum range of 500 cm (196 inches)
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

Documents and Downloads

MB7389 DatasheetHRXL-MaxSonar-WRMT-datasheet
Sensor Selection GuideSensor Selection Guide
HRWR Chaining NotesHRXL-MaxSonar-WR Chaining
RoHS ConformityRoHS Declaration of Conformity
CE Declaration of ConformityCE Declaration of Conformity
Reliability DemonstrationMTBF Report
High Resolution PicturesHigh Resolution Pictures.zip

Product 3D Models

Full Horn Housing
Key ShotIGES FileACIS 7.0 FileSolid Works Part
STL FileSTEP FileParaSolid Part 
Compact Horn Housing
Keyshot FileIGES FileACIS 7.0 FileSolid Works Part
STL FileStep FileParaSolid File 
1″ BSPP Housing
Keyshot FileIGES FileACIS 7.0 FileSolid Works Part
STL FileStep FileParaSolid File 
1″ NPS Housing
Keyshot FileIGES FileACIS 7.0 FileSolid Works Part
STL FileStep FileParaSolid File 
30mm 1.5 Housing
Keyshot FileIGES FileACIS 7.0 FileSolid Works Part
STL FileStep FileParaSolid File 

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.

MB7389100
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
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
MB7389-100MB7389-101MB7389-110MB7389-111
MB7389-120MB7389-121MB7389-130MB7389-131
MB7389-200MB7389-201MB7389-210MB7389-211
MB7389-220MB7389-221MB7389-230MB7389-231
MB7389-500MB7389-501MB7389-510MB7389-511
MB7389-520MB7389-521MB7389-530MB7389-531
MB7389-600MB7389-601MB7389-610MB7389-611
MB7389-620MB7389-621MB7389-630MB7389-631
MB7389-700MB7389-701MB7389-710MB7389-711
MB7389-720MB7389-721MB7389-730MB7389-731