Overview
The MB7389 HRXL-MaxSonar-WRMT is a high-performance ultrasonic rangefinder designed for precision distance measurement and object detection in diverse environments. This sensor provides a detection range of 30 cm to 5 meters with a fine resolution of 1 mm, making it ideal for applications requiring accurate proximity sensing and clutter rejection.
It operates on a wide voltage range of 2.7V to 5.5V and consumes a nominal current of 2.3mA, with peak current draw reaching 49mA at 3.3V. The MB7389 offers multiple output options, including pulse width, analog voltage, and serial TTL, allowing seamless integration into various systems.
It is designed with built-in temperature compensation to ensure consistent accuracy across an operating temperature range of -40°C to +65°C.
The sensor is IP67-rated, offering weather-resistant durability for outdoor applications, and features a narrow beam pattern optimized to detect the largest ultrasonic reflections while filtering out smaller targets and noise.
Ordering Guide
Please refer the table below and contact our support, if you would like to order other than the base variant.
For more details please refer the OEM website for reference. (Click Here)
Specification
Technical specification for MaxBotix MB7389 HRXL-MaxSonar-WRMT.
| Range | 30 cm to 5 meters |
|---|---|
| Resolution | 1 mm |
| Operating Voltage | 2.7V to 5.5V |
| Current Consumption | Nominal 2.3mA (Peak ~49mA at 3.3V) |
| Outputs | Pulse Width, Analog Voltage, and Serial (TTL) |
| Operating Temperature | -40°C to +65°C |
| Weather Resistance | IP67 Rated |
| Applications | Tank Level Measurement, Bin Level Detection, Proximity Sensing, and Robotic Ranging |
Pinout
Pinout for MaxBotix MB7389 HRXL-MaxSonar-WRMT.
| Pin | Function | Description |
|---|---|---|
| 1 | Temperature Sensor Connection | Connects to the external temperature sensor for enhanced accuracy. Leave unconnected if not used. |
| 2 | Pulse Width Output | Outputs a pulse width representation of the distance with a scale factor of 1µs per mm. |
| 3 | Analog Voltage Output | Outputs an analog voltage proportional to the measured distance, referenced to ground and Vcc. |
| 4 | Ranging Start/Stop | Controls the ranging operation. High: continuous ranging; Low: stops ranging. |
| 5 | Serial Output | Outputs range data in TTL format as ASCII characters representing the distance in millimeters. |
| 6 | V+ | Positive power input (2.7V to 5.5V DC). Ensure noise-free power for optimal performance. |
| 7 | GND | Ground connection and common return for the circuit. |
Opps
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