Recommended Products
- MB7950 Mounting Hardware
Mounting Hardware for our outdoor sensors - MB7367
HRXL-MaxSonar-WRCR
A compact version of our most popular outdoor ultrasonic sensor - MB7387
HRXL-MaxSonar-WRCT
A compact outdoor ultrasonic sensor with stability filter output - MB7958 HR-MaxTemp
For automatic temperature compensation on any of the HR‑MaxSonar - MB7954 Shielded Cable
Provide stable power to your sensor - MB7360
HRXL-MaxSonar-WR
Our recommend outdoor ultrasonic sensor - MB7092 XL-MaxSonar-WRA1
Our most advanced outdoor ultrasonic sensor
HRXL-MaxSonar®-WRC™ Sensor Line
Our industrial outdoor ultrasonic sensor component module
The industrial outdoor HRXL-MaxSonar-WRC sensors have a compact PVC housing designed to meet IP67 water intrusion which allows the sensors to be used in applications where our standard HRXL-MaxSonar-WR sensors might not work. Users who can afford the size and weight limitations of the horned larger units above are encouraged to select one of the HRXL‑MaxSonar‑WR sensors.
The HRXL-MaxSonar-WRC sensors provide short to long distance detection and ranging with a narrow beam pattern. The HRXL-MaxSonar-WRC 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, pulse width output, RS232 serial digital output (select models), & TTL serial digital output (select models).
Component Overview
- Resolution of 1-mm
- 7.5Hz reading rate
- 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 500cm (196 inches)
- 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-$109.95
Volume Pricing (25 or more units): Contact MaxBotix Inc.
Selecting a Product
MB7367 HRXL-MaxSonar-WRC
MB7387 HRXL-MaxSonar-WRCT
The HRXL-MaxSonar-WRC Sensors At a Glance
Filter
Range
Range
Different applications require different sensors. The HRXL‑MaxSonar‑WRC series of outdoor rangefinders 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‑WRC 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 products except 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 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-WRC sensors have a compact PVC housing designed to meet IP67 water intrusion which allows the sensors to be used in applications where our standard HRXL-MaxSonar-WR sensors might not work. Users who can afford the size and weight limitations of the horned larger units above are encouraged to select one of the HRXL-MaxSonar-WR sensors.
The HRXL-MaxSonar-WRC sensors provide short to long distance detection and ranging with a narrow beam pattern. The HRXL-MaxSonar-WRC 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, and pulse width output.
Standard Weather Resistant Models
The exposed materials of a properly mounted XL-MaxSonar-WR sensor are: Aluminum (oxidized surface), PVC, & silicone rubber (VMQ).
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 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‑WRC 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-WRC sensors represent an industry revolution which 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.
The Interface
The HRXL‑MaxSonar‑WRC interface was designed to be very easy and intuitive to use. The interface output formats included are pulse width output, analog voltage output, and asynchronous serial digital output. All interfaces work without user code or complicated setup strings.
The Power Requirements
The HRXL‑MaxSonar‑WRC functions throughout a 2.5V 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‑WRC sensors have a 2.9mA 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‑WRC 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‑WRC is tested for proper operation at our facility 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‑WRC automatically calibrates to its environment before every range reading. This calibration includes compensation for temperature, voltage, humidity, acoustic noise, and electrical noise conditions. Temperature compensation for speed of sound changes are not applied, unless the HR-MaxTemp is connected to the HRXL-MaxSonar-WRC.
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
MB7367..........................................................HRXL-MaxSonar-WRCR datasheet
MB7387..........................................................HRXL-MaxSonar-WRCT datasheet
High Resolution Pictures.....................................HRXL-MaxSonar-WRC High Resolution Pictures.zip
Application Notes
Ultrasonic Sensor Selection Guide..........................Ultrasonic Sensor Selection Guide
MTBF Reliability Demonstration Report...................MTBF Report
Key Improvements over our XL-MaxSonar-WRC Sensors
- Ability to temperature compensate automatically using the internal or external temperature sensor
- Advanced firmware to handle a variety of noise sources and provide 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.
