Ultrasound Ultrasonic 750cm RS485 Distance Measuring Sensor

Specifications

• Product Type: Ultrasonic distance measuring sensor
• Model Type: RS485 industrial ultrasonic sensor
• Application: Distance measurement and level detection

Measurement Parameters

• Measuring Range: 0.3 m to 7.5 m (750 cm)
• Resolution: typically 1 cm
• Accuracy: ±1% (depends on target surface and environment)
• Blind Zone: approximately 20 cm to 30 cm (near-field dead zone)

Electrical Characteristics

• Power Supply: 10 V DC to 30 V DC
• Power Consumption: low power (typically < 1 W)
• Output Signal: RS485 differential signal
• Communication Protocol: Modbus RTU

Communication

• Interface: RS485
• Baud Rate: typically 9600 bps (configurable in some versions)
• Data Format: 8N1 standard Modbus format
• Device Address: configurable (multi-sensor network support)

Sensing Principle

• Technology: Ultrasonic pulse echo method
• Measurement Method: Time-of-flight (TOF) calculation
• Target Requirement: solid or liquid reflective surface

Mechanical Characteristics

• Housing Material: industrial-grade ABS or metal housing (model dependent)
• Protection Rating: IP65 to IP67 (dust and water resistant)
• Mounting Type: threaded or bracket mounting
• Sensor Head: waterproof ultrasonic transducer

Environmental

• Operating Temperature: -20°C to +70°C
• Storage Temperature: -30°C to +80°C
• Humidity: up to 95% RH (non-condensing)

Performance

• Stable long-range distance measurement up to 7.5 m
• High resistance to dust, fog, and humidity compared to optical sensors
• Suitable for outdoor and industrial environments

Applications

• Water tank level measurement
• Industrial automation systems
• Wastewater level monitoring
• Material level detection in silos
• Smart irrigation systems

Important Notes

• Soft surfaces (foam, cloth) may reduce measurement accuracy
• Ensure correct alignment with the target surface for the best results
• Avoid strong airflow or turbulence near the sensor face
• RS485 wiring should be shielded for industrial noise immunity
• Proper Modbus configuration (ID, baud rate) is required before operation

Ultrasound Ultrasonic 750cm RS485 Distance Measuring Sensor USER MANUAL