Ultrasonic Range Finder HRXL-WRS-MB7374

Introduction

The weather resistant HRXL-MaxSonar-WR is a rugged, ultrasonic sensor component module. This outdoor sensor provides very short- to long- distance detection and ranging in a compact, robust PVC housing. The ultrasonic sensor meets the IP67 water intrusion standard and matches standard electrical 3/4‑inch PVC pipe fittings.

The MB7374 HRXL-MaxSonar-WRS is a cost-effective, rugged ultrasonic snow-depth sensor that is designed for reliable snow-depth measurement. The MB7374 is the recommended sensor for snow depth measurement. The MB7374 has an internal filter that is a recent biased exponential weighted average. This filter is limited to change a maximum of 7mm per second. The sensor accurately applies temperature compensation to every reading, using either the integrated temperature sensor or the optional external temperature sensor (HR-MaxTemp).

High-output, acoustic power, combined with continuously variable gain, real‑time background automatic calibration, real‑time waveform signature analysis, and noise rejection algorithms results in virtually noise free distance readings. This holds true even in the presence of many of the various acoustic or electrical noise sources. The HRXL‑MaxSonar-WR sensors are factory calibrated to match narrow sensor beam patterns and provide reliable long-range detection zones.

Specifications/Features

• Resolution of 1-mm
• 6Hz read 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 50cm range as 50cm
• Maximum Range of 5-meters (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)
• 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
• RS232 Serial Output
• Recommended for snow level measurement
• Recommended for weather station monitoring
• Great for applications with slow moving targets
• Maximum range of 5 meters (196 inches)

Dimensions

Documents

HRXL-WRLT sensor datasheet
HRXL-WRLT sensor Beam width explanation
Maxbotics FAQ

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