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MB7469 4-20HR-MaxSonar-WRM

High Performance Ultrasonic Precision Rangefinder

Product Description

Features of the weather resistant MB7469, 4-20HR-MaxSonar-WRM, include millimeter resolution, short to long distance detection, range information from 500mm to 5000mm to the target with the largest acoustic return, a 7.5Hz read rate, and the industry standard 4-20mA output where 4mA is minimum range and 20mA is maximum range.

The MB7469 from the 4-20HR-MaxSonar-WR line of outdoor sensors is a rugged ultrasonic sensor component module. This sensor comes in a compact and robust PVC housing which meets the IP67 water intrusion standard and matches standard electrical 3/4‑inch PVC pipe fittings (this product has multiple housing options available).

The 4-20HR-MaxSonar-WR sensors are factory calibrated to match narrow sensor beam patterns and provide reliable long-range detection zones.

The MB7469 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. This gives users the flexibility to consistently detect larger targets in the presence of clutter and noise.

If the largest target is removed from the field of view, the MB7469 will switch to the target that gives the next largest detectable return. This filtering makes the MB7469 one of our most advanced sensors for outdoor tank and bin applications.

In addition, the MB7469 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.


Variations on this sensor model

MB7489 inverted output, 20-4mA, 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 Specifications

  • Resolution of ~1.6mm
  • Analog current output of 4-20mA
  • 7.5Hz read rate
  • 42kHz ultrasonic sensor measures distance to objects
  • RoHS compliant
  • CE compliant
  • Internal or external temperature compensation
  • Virtually no sensor dead zone, objects closer than 50cm typically range as 50cm
  • Maximum Range of 5-meters (196 inches)
  • Operates from 10V-32VDC
  • <40mA 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
  • Most-likely filter
  • Great for liquid level measurement
  • 4mA is the minimum reported range and 20mA is maximum reported range
  • Retail Price Range: $199.95
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

MB7469 Datasheet4-20HR-MaxSonar-WRM-datasheet
Sensor Selection GuideSensor Selection Guide
RoHS ConformityRoHS Declaration of Conformity
CE Declaration of ConformityCE Declaration of Conformity
Reliability DemonstrationMTBF Report
High Resolution PicturesHigh Resolution Pictures.zip

Product 3D Models

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.

MB7469100
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
MB7469-100MB7469-101MB7469-110MB7469-111
MB7469-120MB7469-121MB7469-130MB7469-131
MB7469-200MB7469-201MB7469-210MB7469-211
MB7469-220MB7469-221MB7469-230MB7469-231
MB7469-500MB7469-501MB7469-510MB7469-511
MB7469-520MB7469-521MB7469-530MB7469-531
MB7469-600MB7469-601MB7469-610MB7469-611
MB7469-620MB7469-621MB7469-630MB7469-631
MB7469-700MB7469-701MB7469-710MB7469-711
MB7469-720MB7469-721MB7469-730MB7469-731