Product Specification

SCXL-MaxSonar-WRS Series
Self-Cleaning, High Resolution, IP67 Weather Resistant Ultrasonic Snow Depth Sensor
MB7534, MB7544, MB7554, MB7564, MB7574, MB7584

SCXL-MaxSonar-WRS Series Ultrasonic Rangefinder Product Description
The SCXL-MaxSonar-WRS sensor line is optimized for 'oft acoustic' targets such as snow and includes an effective self-cleaning capability designed to reduce the impact of condensation in closed or high-moisture (dew, frost, etc.) environments providing high accuracy and high resolution ultrasonic proximity detection and ranging in air, with an IP67 weather resistant rating. This sensor line features 1-mm resolution, target-size and operating-voltage compensation for improved accuracy, superior rejection of outside noise sources, internal speed of sound temperature compensation and optional external speed-of-sound temperature compensation. The SCXL-MaxSonar-WRS self-cleaning sensors have a maximum range of 5-meters. This ultrasonic sensor ranges to objects from 50-cm to maximum range. Objects closer than 50-cm are typically reported as 50-cm. The interface output formats are pulse width, analog voltage, and digital serial in either RS232 or TTL. Factory calibration is standard.

Precision Ultrasonic Range Sensing
? Self-cleaning algorithm runs during normal operation
? Range-finding at a fraction of the cost of other precision rangefinders
? Reading-to-reading stability of 1-mm at 1-meter is typical
? Accuracy is factory-matched providing a typical accuracy of 1% or better 
? Compensation provided for target size variation and operating voltage range
? Determines range to first detectable object
? Internal temperature compensation is standard & optional external temperature compensation
? Excellent clutter rejection
? Additional chemical resistance available

Range Outputs
? Pulse width, 1uS/mm resolution
? Analog Voltage, 5-mm resolution
? Serial, 1-mm resolution
? Available in RS232 or TTL

Easy to use Component Module
? Stable and reliable range readings and excellent noise rejection make the sensor easy to use for most users
? Easy to use interface with distance provided in a variety of outputs
? Target size compensation provides greater consistency and accuracy
? Sensor automatically handles acoustic noise
? Small and easy to mount
? Calibrated sensor eliminates most sensor to sensor variations

SCXL-MaxSonar-WRS Series Ultrasonic Rangefinder General Characteristics
? Low cost ultrasonic rangefinder
? Detection out to 5-meters
? Resolution of 1-mm
? Distance sensor from 50-cm to 5-meters
? Excellent 1 Mean Time Between Failure (MTBF)
? Operating temperature range from -40°C to +65°C
? Operating voltage from 2.7V to 5.5V 4
? IP67 Rated
? Best operated at 5V for snow applications
? Current draw of ~34mA at 3.3V, and ~68mA at 5V
? Sensor should remain on and be allowed to free run for self-clean feature to operate

SCXL-MaxSonar-WRS Series Ultrasonic Rangefinder Applications & Uses
? Weather station monitoring
? Snow level measurement (MB7554, MB7574)
? Bin level measurement
? Corn level measurement
? People detection

SCXL-MaxSonar-WRS Series Ultrasonic Rangefinder 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.


The following tables display all of the active and valid part numbers for these products.