Pepperl+Fuchs UB500-18GM75-I-V15 Ultrasonic Sensor M18

Technical Overview

M18 ultrasonic sensor with 30-500mm sensing range and 4-20mA analog output. Features IP67, teach-in input, and temperature compensation.

Key Features

Very small blind zone.
Temperature compensation.
Analog output 4 mA ... 20 mA.
Measuring window adjustable.
Selectable sound lobe width.
Program input / Teach-in input.
Synchronization options.
Deactivation option.
Cylindrical threaded shape M18.
IP67 degree of protection.

Technical Specification Matrix

Parameter	Value
Operating Voltage	10-30 V DC, ripple 10 %SS
Output Type	1 analog output 4-20 mA
Sensing Range	30 ... 500 mm
Adjustment Range	50 ... 500 mm
Dead Band / Unusable Area	0 ... 30 mm
Transducer Frequency	approx. 380 kHz
Response Delay	approx. 50 ms
Connection Type	M12 x 1 connector, 5-pin
Degree of Protection	IP67
Housing Material	Brass, nickel-plated
Transducer Material	Epoxy resin / hollow glass sphere mixture / polyurethane foam
Cover Material	PBT
Ambient Temperature	-25 ... 70 °C (-13 ... 158 °F)
Storage Temperature	-40 ... 85 °C (-40 ... 185 °F)
No-load Supply Current	≤ 45 mA
Resolution	0.13 mm for max. detection range
Deviation of Characteristic Curve	± 1 % of full-scale value
Repeat Accuracy	± 0.1 % of full-scale value
Load Impedance	0 ... 300 Ohm
Temperature Influence	± 1.5 % of full-scale value
Physical Weight (kg)	0.06
Dimensions L x W x H (cm)	8.5 x 1.8 x 1.8

Industrial Applications

1. Level Monitoring in Non-Contact Liquid Tanks

This ultrasonic sensor is ideal for continuously monitoring liquid levels in tanks where physical contact with the liquid is undesirable. Its 30-500mm sensing range and 4-20mA analog output provide precise, real-time level data for process control and inventory management.

Problem Solved

Provides accurate, non-contact liquid level measurement in tanks, avoiding contamination and wear issues associated with submersible sensors, even in environments with dust or steam due to its ultrasonic principle and IP67 rating.

Level SensingNon-Contact Measurement4-20mA Analog OutputIP6730-500mm Sensing Range

2. Object Presence and Distance Detection on Conveyor Belts

With its M18 compact design, 30-500mm sensing range, and teach-in input for adjustable measuring windows, this sensor can precisely detect the presence, absence, or distance of various objects on a conveyor belt. The 4-20mA output allows for variable distance feedback, enabling sorting, positioning, or fill-level control of materials.

Problem Solved

Reliably detects objects of different materials, shapes, and colors on conveyor systems, providing accurate distance information for automated processes like sorting, filling, or quality control, even in dusty industrial settings due to IP67.

Proximity SensingDistance MeasurementConveyor AutomationTeach-in Function4-20mA Output

3. Automated Door/Gate Position Monitoring in Harsh Environments

The UB500-18GM75-I-V15, with its IP67 rating and temperature compensation, is well-suited for monitoring the open/closed position or precise travel of industrial doors and gates. The analog output can provide granular position feedback, while its ability to operate in temperatures from -25 to 70 °C ensures functionality in unconditioned spaces.

Problem Solved

Ensures accurate and robust position monitoring for industrial doors and gates in harsh conditions, resisting dust, moisture, and temperature fluctuations, providing analog feedback for precise control and safety interlocks.

Position SensingIndustrial AutomationIP67Temperature Compensation4-20mA Analog