MB7769 4-20SC-MaxSonar-WRM

Industrial Outdoor High Performance Self-cleaning Ultrasonic Precision Rangefinders

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-WRM 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‑WRM 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 MB7769 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 weather resistance (IP67) rating is needed.

Additional Chemical Resistance Available

The F-Option (IP-68) design modification provides our weather resistant sensors with extra protection against corrosive chemical environments. Ask for the F‑Option (IP-68) 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
  • 4mA is the minimum reported range and 20mA is maximum reported range
  • Retail Price: $199.95
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

Product Documentation

Documents and Downloads

MB7769 Datasheet 4-20SC-MaxSonar-WRMI-datasheet
Sensor Selection Guide Sensor Selection Guide
RoHS Conformity RoHS Declaration of Conformity
CE Declaration of Conformity CE Declaration of Conformity
Reliability Demonstration MTBF Report
High Resolution Pictures High Resolution Pictures.zip

Product 3D Models

These 3D model files will download with a different product name.
1″ BSPP Housing
Keyshot File IGES File ACIS 7.0 File Solid Works Part
STL File Step File ParaSolid File  
1″ NPS Housing
Keyshot File IGES File ACIS 7.0 File Solid Works Part
STL File Step File ParaSolid File  
30mm 1.5 Housing
Keyshot File IGES File ACIS 7.0 File Solid Works Part
STL File Step File ParaSolid 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.

M B 7 7 6 9 1 0 0
Base
Housing Style
0 Not Applicable
1 3/4″ NPS WR
2 3/4″ NPS WRC
3 Ultra Compact
4 Ultra Compact Flush Mount
5 1″ NPS
6 1″ BSPP
7 30MM 1.5
8 Extended Horn
Options Selected
0 No Options (Bagged)
1 F-Option
2 P-Option
3 F-Option and P-Option
4 No Options (Trayed)
5 TTL (Bagged)
6 TTL (Trayed)
Wire Attach
0 No Wire Attach
1 Wire Attached

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

Active Part Numbers
MB7769-100 MB7769-101 MB7769-110 MB7769-111
MB7769-120 MB7769-121 MB7769-130 MB7769-131
MB7769-200 MB7769-201 MB7769-210 MB7769-211
MB7769-220 MB7769-221 MB7769-230 MB7769-231
MB7769-500 MB7769-501 MB7769-510 MB7769-511
MB7769-520 MB7769-521 MB7769-530 MB7769-531
MB7769-600 MB7769-601 MB7769-610 MB7769-611
MB7769-620 MB7769-621 MB7769-630 MB7769-631
MB7769-700 MB7769-701 MB7769-710 MB7769-711
MB7769-720 MB7769-721 MB7769-730 MB7769-731