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4-20HR-MaxSonar-WR family of Ultrasonic Sensors from MaxBotix Inc.

MB7789
4-20SC-MaxSonar®-WRMI™

Industrial Outdoor High Performance Self-cleaning Ultrasonic Precision Rangefinders
 

Packaging Options

 
HRXL-MaxSonar-WR Ultrasonic Sensor

3/4" NPS WR Housing

Lead time may vary for larger orders

MB7789
Each, $199.95
MB7789
5-Pack, $949.75
MB7789
10-Pack, $1,799.50
MB7789
50-Pack, $7,798.50
MB7789
100-Pack, $13,437.00
For pricing of orders with more than 100 units, please complete our Quote Request Form.
 
HRXL-MaxSonar-WR Ultrasonic Sensor

3/4" NPS WRC Housing

Lead time may vary for larger orders

MB7789 - Compact
Each $199.95
MB7789 - Compact
5-Pack, $949.75
MB7789 - Compact
10-Pack, $1,799.50
MB7789 - Compact
50-Pack, $7,798.50
MB7789 - Compact
100-Pack, $13,437.00
For pricing of orders with more than 100 units, please complete our Quote Request Form.
 
HRXL-MaxSonar-WRC Pipe thread option Ultrasonic Rangefinders

1" NPS Housing

This housing option may take up to 2 weeks
Lead time may vary for larger orders

MB7789 - 1" NPS
Each, $199.95
MB7789 - 1" NPS
5-Pack, $949.75
MB7789 - 1" NPS
10-Pack, $1,799.50
MB7789 - 1" NPS
50-Pack, $7,873.50
MB7789 - 1" NPS
100-Pack, $13,587.00
For pricing of orders with more than 100 units, please complete our Quote Request Form.
 
HRXL-MaxSonar-WRC Pipe thread option Ultrasonic Rangefinders

1" BSPP Housing

This housing option may take up to 2 weeks
Lead time may vary for larger orders

MB7789 - 1" BSPP
Each, $199.95
MB7789 - 1" BSPP
5-Pack, $949.75
MB7789 - 1" BSPP
10-Pack, $1,799.50
MB7789 - 1" BSPP
50-Pack, $7,873.50
MB7789 - 1" BSPP
100-Pack, $13,587.00
For pricing of orders with more than 100 units, please complete our Quote Request Form.
 
 
HRXL-MaxSonar-WRC Pipe thread option Ultrasonic Rangefinders

30MM 1.5 Housing

This housing option may take up to 2 weeks
Lead time may vary for larger orders

MB7789 - 30mm1.5
Each, $199.95
MB7789 - 30mm1.5
5-Pack, $949.75
MB7789 - 30mm1.5
10-Pack, $1,799.50
MB7789 - 30mm1.5
50-Pack, $7,948.50
MB7789 - 30mm1.5
100-Pack, $13,737.00
For pricing of orders with more than 100 units, please complete our Quote Request Form.

Product Description

The weather resistant 4-20SC‑MaxSonar‑WR is a rugged, ultrasonic sensor component module that features the industry standard 4-20mA analog current interface. This outdoor sensor provides very short- to long- distance detection and ranging in a compact, robust PVC housing. This ultrasonic sensor meets the IP67 water intrusion standard and is available in multiple packaging types.

High-output, acoustic power, combined with continuously variable gain, real‑time background automatic calibration, real‑time waveform signature analysis, and noise rejection algorithms results in virtually noise free distance readings. This holds true even in the presence of many of the various acoustic or electrical noise sources. The 4‑20SC‑MaxSonar-WR sensors are factory calibrated to match narrow sensor beam patterns and provide reliable long-range detection zones.

The 4-20SC-MaxSonar-WRMI 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 4-20SC-MaxSonar-WRMI 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.

The MB7789 features an effective self-cleaning capability designed to reduce the impact of condensation in closed or high-moisture (dew, frost, etc.) environments. This sensor is a cost-effective solution for applications where precision range-finding, low-voltage operation, space saving, low-cost, self-cleaning, and IP67 weather resistance rating is needed.

The MB7789 4-20SC‑MaxSonar‑WRMI outputs a 20-4mA signal for PLC integration. A 20mA output signifies that the sensor is reporting the minimum reported distance of 50cm, where as a 4mA signal signifies the sensor is reporting the maximum reported distance of 500cm.

Additional Chemical Resistance Available

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

Product Specifications

 
  • Resolution of ~1.6mm
  • Analog current output of 4-20mA
  • 0.60Hz 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
  • Available in multiple housing and threading types: 3/4 inch NPS, 1 inch NPS, 1 inch BSPP, 30mm1.5
  • Long, narrow detection zone
  • Most-likely filter
  • Great for liquid level measurement
  • 20mA is the minimum reported range and 4mA is maximum reported range
  • Retail Price: $199.95
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

Documents and Downloads

 
MB7789 Datasheet 4-20SC-MaxSonar-WRMI-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

 
These 3D model files will download with a different product name.
 
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 
 
Author: Cody Carlson  Date: 08-02-2016
Raspberry Pi 2 board MaxSonar sensors offer a variety of outputs including TTL serial data. This tutorial guides you through the process of setting up your Raspberry Pi 3 with a MaxBotix sensor. Click here for full article.
Author: Scott Wielenberg  Date: 07-26-2016
Full Horn Housing MaxBotix offers an expanded range of packaging options for many of our sensors. Each option provides unique benefits to certain mounting integrations. This article provides a brief overview of each option.
Click here for full article.
Author: Scott Wielenberg  Date: 07-18-2016
Sensor is Tested When providing support, our technical support team may determine that further testing at our facility is the best way to help resolve the issue that you are facing. At this point, they will start the Return Merchandise Authorization (RMA) process. This article will explain what you can expect as your ultrasonic sensor travels through our RMA process.
Click here for full article.
Author: Scott Wielenberg  Date: 07-11-2016
Typical Wall Pipe Many customers have requested the option to mount an ultrasonic sensor in a pipe. During the testing and development cycle, we discovered a number of considerations and requirements that must be met for the application to be successful. When all of these are met, a user may be able to achieve the desired level of success for measuring the liquid level inside of a pipe.
Click here for full article.
Author: Jenney Grover  Date: 06-28-2016
one of the options for outputs On April 19th, we welcomed our supporters to join us for the Grand Opening of the Build Out. Bob and Nita Gross gave a tour of the build out and their vision for the space. We continue to be in awe of the support from our community, our employees, our distributors, and our customers. Thank you for the many years of support, and we look forward to serving you in the years to come.
Click here for full article.
 
 
 
 
 
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