Ultrasonic Range Finder HRXLWR-WRMT-MB7389-BSPP

Introduction

The weather resistant HRXL-WRMT-MB7389 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 HRXL-WRMT-MB7389 sensor is 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. The sensor will also reject periodic noise, even noise that has a higher amplitude than the acoustic return from the target. This gives users the flexibility to consistently range larger targets in the presence of clutter and noise. If the largest target is removed from the field of view, then sensor will switch to the target that gives the next largest detectable return.

The HRXL-MaxSonar-WR 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 speed-of-sound temperature compensation and optional external speed-of-sound temperature compensation.This ultrasonic sensor detects objects from 1-mm and ranges to objects from 30-cm to 500cm. Objects closer than 30-cm are typically reported as 30-cm. The interface output formats are pulse width, analog voltage, and digital serial in TTL.

Specifications/Features

• Resolution: 1-mm
• Data refresh rate: 6.66Hz
• Range: 1mm to 5000mm (196inches)
• Sensor operates at 42kHz
• Data output format:
  -Analog Voltage (VCC/5120)/mm
  -TTL Serial output
  -Pulse Width Modulation (1us/mm)
• Virtually no sensor dead zone, objects closer than 30 cm will typically range as 30 cm
• Operating voltage: 2.7V-5.5V
• Average current requirement: 2.9mA
• Operational Temperature from -40°C to +65°C (-40°F to +149°F)
• Matches standard electrical 3/4-inch PVC pipe fittings for easy mounting (3/4-inch National Pipe Thread Straight)
• Firmware filtering for better noise tolerance and clutter rejection
• Long narrow detection zone
• Can be used to range large objects behind small obstructions
• Detects the largest signal return in the field of view
• Best sensor for bin and tank level measurements
• Weather resistant (IP67), optional chemical resistant F-Option

Dimensions

Documents

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

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