Recommended Products
- F-Option
Add additional chemical resistance to your outdoor sensor - MB7950 Mounting Hardware
Mounting Hardware for our outdoor sensors
HRXL‑MaxSonar®‑WR™ Sensor Line
Our industrial outdoor ultrasonic sensor component module
The industrial high resolution outdoor HRXL-MaxSonar-WR 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 HRXL-MaxSonar-WR outdoor ultrasonic sensors have high power output, noise rejection, auto calibration, temperature compensation, and factory calibrated beam patterns. Users should select a sensor with their outputs of choice and that matches their application. Models are available with analog voltage output, RS232 Serial output (select models) or TTL Serial output (select models), and pulse width output.
Component Overview
- Resolution of 1-mm
- 7.5Hz read rate (MB7360, MB7380)
- 6.67Hz read rate (MB7369, MB7389)
- 6Hz read rate (MB7363, MB7366, MB7383, MB7386)
- Internal temperature compensation
- 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 range as 30cm
- Maximum Range of 5-meters (196 inches)
(MB7360, MB7369, MB7380, MB7389) - Maximum Range of 10-meters (393 inches)
(MB7363, MB7366, MB7383, MB7386) - Operates from 2.7-5.5V
- Low 3.1mA 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)
- Realtime 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: $97.95-$119.95
Volume Pricing (25 or more units): Contact MaxBotix Inc.
Selecting a Product
MB7360 HRXL-MaxSonar-WR
MB7363 HRXL-MaxSonar-WRLS
MB7366 HRXL-MaxSonar-WRL
MB7369 HRXL-MaxSonar-WRM
MB7380 HRXL-MaxSonar-WRT
MB7383 HRXL-MaxSonar-WRLST
MB7386 HRXL-MaxSonar-WRLT
MB7389 HRXL-MaxSonar-WRMT
The HRXL-MaxSonar-WR Sensors At a Glance
Output
Format
Likely
Filter
Compact
Max
Range
Reported
Range
Different applications require different sensors. The HRXL‑MaxSonar‑WR 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 HRXL‑MaxSonar‑WR Beam Patterns.
The Difference Between HRXL‑MaxSonar‑WR and HRXL‑MaxSonar‑WRC
Sensors from the HRXL-MaxSonar-WR product line offer better overall performance but have a larger size. These are our recommended outdoor sensors except for when their size or weight become a limitation.
Sensors from the HRXL-MaxSonar-WRC product line offer a more compact housing for use in applications where there are mounting or weight restrictions.
For further help in selecting a sensor use our Ultrasonic Sensor Selection Guide
Detailed product information is available in the product datasheets
Weather Resistant (IP67) Sensors, and Optional Chemical Resistance
The industrial outdoor HRXL-MaxSonar-WR 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 HRXL‑MaxSonar‑WR 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 HRXL-MaxSonar-WR, 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 HRXL-MaxSonar-WR sensor are: Aluminum (oxidized surface), PVC, & silicone rubber (VMQ).
F-Option
The exposed materials of a properly mounted HRXL-MaxSonar-WR 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 HRXL‑MaxSonar‑WR 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 HRXL-MaxSonar-WR 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 HRXL‑MaxSonar‑WR 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. The self heating (15mW at 5V, or 8mW at 3.3V) will change the temperature of the sensor by 3 degrees C or so. (The amount of self heating is also slightly dependent upon user mounting). 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 HRXL‑MaxSonar‑WR line of sensors, realtime automatic temperature compensation is available. The HR-MaxTemp allows the HRXL‑MaxSonar‑WR sensor to monitor the changes to air temperature while ignoring self-heating.
The HRXL‑MaxSonar‑WR is designed to used alongside the HR‑MaxTemp temperature sensor. On power-up the HRXL‑MaxSonar‑WR 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 HRXL‑MaxSonar‑WR 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 HRXL‑MaxSonar‑WR 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 HRXL‑MaxSonar‑WR sensors have a 3.1mA average current draw 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 HRXL‑MaxSonar‑WR 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 HRXL‑MaxSonar‑WR 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 HRXL‑MaxSonar‑WR automatically calibrates to its environment before every range reading. This calibration includes compensation for temperature, voltage, humidity, acoustic noise, and electrical noise conditions.
The Price
This sensor is designed to be sold in volume. As a result, our customers benefit from our large production volumes and distributed engineering expenses.
Reference the product datasheets to get detailed information on how each sensor operates.
Product Documentation
Datasheets and Downloads
MB7360..........................................................HRXL-MaxSonar-WR datasheet
MB7363..........................................................HRXL-MaxSonar-WRLS datasheet
MB7366..........................................................HRXL-MaxSonar-WRL datasheet
MB7369..........................................................HRXL-MaxSonar-WRM datasheet
MB7380..........................................................HRXL-MaxSonar-WRT datasheet
MB7383..........................................................HRXL-MaxSonar-WRLST datasheet
MB7386..........................................................HRXL-MaxSonar-WRLT datasheet
MB7389..........................................................HRXL-MaxSonar-WRMT datasheet
High Resolution Pictures.....................................HRXR-MaxSonar-WR High Resolution Pictures.zip
Application Notes
Ultrasonic Sensor Selection Guide........................Ultrasonic Sensor Selection Guide
Key Improvements over the XL-MaxSonar-WR Sensors
- Higher resolution and improved accuracy
- Ability to temperature compensate automatically using the internal or external temperature sensor
- Advanced firmware to handle a variety of noise sources and provide even greater clutter rejection.
- Added TTL serial output
- Greater flexibility for future custom solutions.
Custom Solutions
For some of our customers our standard products have not fit the requirements of their particular application. As a result, we have designed and manufactured a number of custom solutions. Some of the product improvements and features have been incorporated directly into our standard products. For other users we have evaluated their specifications and charged a small NRE fee for their custom parts.
Contact MaxBotix Inc. with your application and its requirements and our engineers will work to arrive at a desirable solution.
