Autonics CR18-8AC Capacitive Proximity Sensor (M18, 8 mm, AC 2-Wire)
Industrial M18 capacitive proximity sensor with 8 mm sensing distance, capable of detecting metal and non-metal materials.
Ideal for level detection, powder, granule, plastic, glass, and liquid sensing applications.
The Autonics CR18-8AC is an AC 2-wire capacitive proximity sensor designed for reliable detection of both metallic and non-metallic objects. With an 8 mm sensing distance and sensitivity adjustment, it is widely used for level detection of powders, granules, liquids, plastics, glass, and packaging materials in industrial automation environments.
Capacitive sensing – detects metal & non-metal objects
Sensing distance: 8 mm
AC 2-wire output
Wide supply voltage: 100–240 VAC
Sensitivity adjustment via potentiometer
Normally Open (NO) / Normally Closed (NC) options
Red LED operation indicator
IP66 protection (M18 sensing face)
Built-in surge protection circuit
Ideal for level detection applications
| Parameter | Specification |
|---|---|
| Model | CR18-8AC |
| Series | CR |
| Sensor Type | Capacitive Proximity Sensor |
| Installation | Non-flush |
| Body Size | M18 × 1 |
| Sensing Distance | 8 mm |
| Setting Distance | 0–5.6 mm (70% of Sn) |
| Output Type | AC 2-wire |
| Operating Voltage | 100–240 VAC (85–264 VAC), 50/60 Hz |
| Control Output | 5–200 mA |
| Leakage Current | ≤ 2.2 mA |
| Response Frequency | 20 Hz |
| Indicator | Red LED |
| Protection Rating | IP66 |
| Operating Temperature | −25 to +70 °C |
| Housing Material | PA6 (M18 body) |
Tank & hopper level detection
Powder & granule level sensing
Plastic, paper & glass detection
Packaging machinery
Food & material handling equipment
Industrial automation & OEM machines
CR18-8AC Capacitive Proximity Sensor
Fixing nuts × 2
Washer × 1
Instruction manual
Q1. What materials can CR18-8AC detect?
It can detect metal, plastic, liquid, glass, powder, and granules.
Q2. Is this sensor AC or DC operated?
This is an AC 2-wire capacitive sensor.
Q3. Can sensing distance be adjusted?
Yes, via the built-in sensitivity potentiometer.
Q4. Is it suitable for level detection?
Yes, it is widely used for level detection in tanks and hoppers.
Q5. Is grounding required?
Yes, proper grounding improves sensing stability, especially for non-metal targets.
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