PR18-8DP Autonics Proximity Sensor
Autonics PR18-8DP Inductive Proximity Sensor – M18, 8 mm, PNP, DC 3-Wire
Autonics PR18-8DP is an M18 inductive proximity sensor with an 8 mm sensing distance and a PNP DC 3-wire output.
Ideal for long-range metal detection in PLC-based industrial automation systems.
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The Autonics PR18-8DP is a heavy-duty inductive proximity sensor designed to detect metal objects only at a longer sensing distance. With an M18 threaded housing, 8 mm sensing range (non-flush), and PNP DC 3-wire output, it is ideal for PLC inputs in industrial automation where additional mounting clearance is required.
Key Features
Detects metal objects only (inductive principle)
Robust M18 cylindrical housing
8 mm sensing distance (non-flush / unshielded)
PNP, DC 3-wire output
Red LED operation indicator
Reverse polarity & short-circuit protection
Stable sensing with high repeatability
IP67 protection for harsh industrial environments
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PR18-8DP |
| Sensor Type | Inductive Proximity Sensor |
| Housing Size | M18 |
| Installation | Non-Flush (Unshielded) |
| Sensing Distance | 8 mm |
| Setting Distance | 0 – 5.6 mm |
| Standard Target | Iron 18 × 18 × 1 mm |
| Output Type | PNP |
| Wiring | DC 3-Wire |
| Supply Voltage | 12–24 V DC (10–30 V DC operating) |
| Current Consumption | ≤ 10 mA |
| Control Output | Max. 200 mA |
| Response Frequency | Approx. 300 Hz |
| Indicator | Red LED |
| Protection Rating | IP67 |
| Ambient Temperature | −25 °C to +70 °C |
| Cable Length | 2 m |
| Body Material | Nickel-plated brass |
| Sensing Face | PBT |
Applications
PLC-based automation systems
Conveyor & material handling
Packaging & assembly machines
CNC & special-purpose machines
Control & junction panels
Position, limit & counting detection
What’s in the Box
1 × Autonics PR18-8DP Sensor
2 × Mounting nuts
1 × Washer
Instruction leaflet
FAQ
Q1. What material can PR18-8DP detect?
Only metal objects (inductive sensing).
Q2. What is the difference between PR18-8DP and PR18-8DN?
PR18-8DP has PNP output, while PR18-8DN has NPN output.
Q3. Is this suitable for PLC input?
Yes. PNP DC 3-wire sensors are widely used with modern PLC digital inputs.
Q4. Can it be used in dusty or oily environments?
Yes. IP67 protection ensures reliable operation.
Q5. What is the sensing distance?
8 mm for a standard iron target.