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RoHs Compliant

SCXL‑MaxSonar®‑WR™ Sensor Line

Our industrial self-cleaning outdoor high performance ultrasonic precision rangefinders

The SCXL-MaxSonar-WR sensor line introduces 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, cost-effective, self-cleaning, and IP67 weather resistance rating is needed. This innovative sensor component module allows users of other, more costly precision rangefinders to lower the cost of their systems without sacrificing performance.

The SCXL-MaxSonar-WR self-cleaning sensor line provides 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 speedofsound temperature compensation and optional external speed-of-sound temperature compensation. The SCXL‑MaxSonar‑WR/WRC self-cleaning models are available in 5-meter or 10-meter models. Models are available with analog voltage output, RS232 Serial output (select models) or TTL Serial output (select models), and pulse width output.

 

Selecting a Product

 
MB7560 Outdoor Ultrasonic Sensor
MB7560 Outdoor Ultrasonic Sensor

MB7560 SCXL-MaxSonar-WR

The SCXL-MaxSonar-WR is a weather resistant sensor designed for outdoor detection and ranging. Outputs are: Analog Voltage, RS232 Serial, & Pulse Width. Price each $149.95.   More on this sensor
MB7563 Outdoor Ultrasonic Sensor
MB7563 Outdoor Ultrasonic Sensor

MB7563 SCXL-MaxSonar-WRLS

The SCXL-MaxSonar-WRLS is a weather resistant sensor designed for outdoor detection and ranging. This sensor has a maximum range of 10 meters. Outputs are: Analog Voltage, RS232 Serial, & Pulse Width. Price each $174.95.   More on this sensor
MB7566 Outdoor Ultrasonic Sensor
MB7566 Outdoor Ultrasonic Sensor

MB7566 SCXL-MaxSonar-WRL

The SCXL-MaxSonar-WRL is a weather resistant sensor designed for outdoor detection and ranging. This sensor has a maximum range of 10 meters. Outputs are: Analog Voltage, RS232 Serial, & Pulse Width. Price each $174.95.   More on this sensor
MB7569 Outdoor Ultrasonic Sensor
MB7569 Outdoor Ultrasonic Sensor

MB7569 SCXL-MaxSonar-WRM

The SCXL-MaxSonar-WRM ignores smaller targets and only reports the range to target with the largest acoustic return. Outputs are: Analog Voltage, RS232 Serial, & Pulse Width. Price each $149.95.   More on this sensor
MB7580 Outdoor Ultrasonic Sensor
MB7580 Outdoor Ultrasonic Sensor

MB7580 SCXL-MaxSonar-WRT

The SCXL-MaxSonar-WRT is a weather resistant sensor designed for outdoor detection and ranging. Outputs are: Analog Voltage, TTL Serial, & Pulse Width. Price each $149.95. More on this sensor
MB7583 Outdoor Ultrasonic Sensor
MB7583 Outdoor Ultrasonic Sensor

MB7583 SCXL-MaxSonar-WRLST

The SCXL-MaxSonar-WRLS is a weather resistant sensor designed for outdoor detection and ranging. This sensor has a maximum range of 10 meters. Outputs are: Analog Voltage, TTL Serial, & Pulse Width. Price each $174.95.   More on this sensor
MB7586 Outdoor Ultrasonic Sensor
MB7586 Outdoor Ultrasonic Sensor

MB7586 SCXL-MaxSonar-WRLT

The SCXL-MaxSonar-WRLT is a weather resistant sensor designed for outdoor detection and ranging. This sensor has a maximum range of 10 meters. Outputs are: Analog Voltage, TTL Serial, & Pulse Width. Price each $174.95.   More on this sensor
MB7580 Outdoor Ultrasonic Sensor
MB7589 Outdoor Ultrasonic Sensor

MB7589 SCXL-MaxSonar-WRMT

The SCXL-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. Price each $149.95. More on this sensor
 
The HRXL-MaxSonar-WR Sensors At a Glance
 
Serial
Output
Format
RS232
RS232
RS232
RS232
TTL
TTL
TTL
TTL
Most
Likely
Filter
 
 
 
Yes
 
 
 
YES
 
HR
Filter
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
 
Self-
Cleaning
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Max
Reported
Range
5000
9999
9999
5000
5000
9999
9999
5000
 

Different applications require different sensors. The SCXL‑MaxSonar‑WR self‑cleaning sensor series of outdoor sensors offer a variety of features allowing users to select the best sensor to meet their needs.

The table above shows features that exist in each of the products. To view how each sensor will function to different sized targets reference the SCXL‑MaxSonar‑WR Beam Patterns.

Sensor Line Specifications

 
  • Resolution of 1-mm
  • Self‑Cleaning transducer face
  • 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*
  • Maximum Range of 5-meters (196 inches)
    (MB7560, MB7569, MB7567, MB7580, MB7589)
  • Maximum Range of 10-meters (393 inches)
    (MB7563, MB7566, MB7583, MB7586)
  • Operates from 2.7-5.5V
  • 68mA 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
  • Retail Price Range: $134.95-$174.95
  • Volume Pricing (100 or more units): Contact MaxBotix Inc.

*The 10 meter sensors have a minimum reported distance of 50cm.

Weather Resistant (IP67) Sensors, and Optional Chemical Resistance

The industrial outdoor SCXL-MaxSonar-WR self‑cleaning sensors have a robust PVC housing designed to meet IP67 water intrusion. The sensors provide short to long distance detection and ranging with a narrow beam pattern. The SCXL‑MaxSonar‑WR self‑cleaning outdoor ultrasonic sensors have high power output, noise rejection, auto calibration, and factory calibrated beam patterns. Users should select a sensor with their outputs of choice and reading filtering that matches their application. Models are available with analog voltage output, serial digital output, pulse width output (select models), & real-time analog envelope output (select models).

In addition to the standard SCXL-MaxSonar-WR self‑cleaning sensors, MaxBotix Inc. has developed the F-Option for additional protection necessary in a few hazardous chemical environments. Extremely corrosive gases or liquids can degrade or compromise the operation of the sensing unit. As a result, we offer a more chemically inert seal which allows our sensors to operate in all but the harshest of chemical environments. In addition to the chemical resistance the sensor has improved performance in wet or dust environments. In addition to the chemical resistance the sensor has improved performance in wet or dust environments.

Standard Weather Resistant Models

The exposed materials of a properly mounted SCXL-MaxSonar-WR self‑cleaning sensor are: Aluminum (oxidized surface), PVC, & silicone rubber (VMQ).

F-Option

The exposed materials of a properly mounted SCXL-MaxSonar-WR self‑cleaning sensor with the F-Option added are: Aluminum (oxidized surface), PVC, & Flourosilicone (with an additional back up FEP Teflon® seal).

Additional Considerations

To ensure long term operation of the sensor, terminal connections should not be exposed to water, dust, or other chemicals. Follow proper mounting when installing your sensor. This is easily accomplished using standard PVC pipe fittings which match the provided mounting threads (3/4" National Pipe Thread Straight)  MB7950 Mounting hardware can be purchased along with your sensor.

Sensors are designed for operation in air, but may work well in many gases. Testing for proper operation is encouraged. Compensation for speed of sound changes in other gases should be applied to sensor output, this is often accomplished through a simple 2 point linear calibration.

Rugged & Reliable Outdoor Ultrasonic Sensors

The industrial SCXL‑MaxSonar‑WR self‑cleaning sensor products are the highest quality for cost outdoor ultrasonic sensors on the market. They provide an industrial component module solution that offers easy to use outputs, weather & dust resistance, no sensor dead zone, calibrated narrow beam patterns, stable range readings, low power demands, and a host of other features detailed in the product datasheets.

The SCXL-MaxSonar-WR self‑cleaning sensors represent an industry revolution that has already found use in a number of advanced or industrial solutions where ultrasonic sensors have not been historically considered a viable solution due to unstable readings, high cost, and high power requirements.

The Noise Filtering

The sensor dynamically adjusts its sensitivity to compensate for outside electrical & acoustic noise sources.

Internal Temperature Compensation

The speed of sound in air increases about 0.6 meters per second, per degree centigrade. Because of this, each SCXL‑MaxSonar‑WR self‑cleaning sensor is equipped with an internal temperature sensor which allows the sensor to apply a compensation for speed of sound changes.

With the internal temperature sensor, range readings immediately (within twenty seconds) after power up are the most accurate, and this is ideal for battery applications where the sensor is powered off most of the time. As such, self heating will cause the sensor to read the actual air temperature inaccurately.

External Temperature Sensor

With the HR‑MaxTemp connected to the SCXL‑MaxSonar‑WR self‑cleaning line of sensors, realtime automatic temperature compensation is available. The HR-MaxTemp allows the SCXL‑MaxSonar‑WR self‑cleaning sensor to monitor the changes to air temperature while ignoring self-heating.

The SCXL‑MaxSonar‑WR self‑cleaning sensor is designed to used alongside the HR‑MaxTemp temperature sensor. On power-up the SCXL‑MaxSonar‑WR self‑cleaning sensor will automatically detect an attached temperature sensor and begin to apply temperature compensation for the speed of sound changes to all range outputs.

The Interface

The SCXL‑MaxSonar‑WR self‑cleaning sensor interface was designed to be very easy and intuitive to use. The interface output formats included are pulse width output, analog voltage output, and RS232 or TTL serial output. All interfaces work without user code or complicated setup strings.

The Power Requirements

The SCXL‑MaxSonar‑WR self‑cleaning sensor functions throughout a 2.7V to 5.5V operational voltage range.  This allows for easy integration at either 3.3V or 5V and means that users of low voltage microcontrollers, or those who wish to operate in solar or battery based systems do not have to provide an extra power supply for the sensor.

The SCXL‑MaxSonar‑WR self‑cleaning sensors have an average current draw of ~68mA during free ranging operation.

The Controlled Narrow Beam Shape

Similar ultrasonic products may have frequent side lobe detection and can even falsely trigger on objects behind or to the sides of the sensor. The SCXL‑MaxSonar‑WR self‑cleaning sensor offers a controlled narrow beam that is designed to reject small objects (clutter) outside of the central beam area and provides long range sensitivity without detecting frivolous or unwanted targets.

The Calibration

Each SCXL‑MaxSonar‑WR self‑cleaning sensor is made and tested for proper operation at our facility in the USA and comes with a factory calibrated narrow beam pattern to help ensure consistent operation of the sensor even from part to part.

The SCXL‑MaxSonar‑WR self‑cleaning sensor automatically calibrates to its environment before every range reading. This calibration includes compensation for temperature, voltage, humidity, acoustic noise, and electrical noise conditions.

 
 
 
 
 
 
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