PRD18-7DP Autonics Inductive Proximity Sensor
Autonics PRD18-7DP Inductive Proximity Sensor – M18, 7 mm, PNP, DC 3-Wire
Autonics PRD18-7DP is an M18 inductive proximity sensor with a 7 mm sensing distance and a PNP DC 3-wire output.
Designed for reliable metal detection in PLC-controlled machinery with flush installation.
The Autonics PRD18-7DP is a cylindrical inductive proximity sensor designed to detect metal objects only in industrial automation environments. With an M18 threaded housing, 7 mm sensing distance, flush (shielded) installation, and PNP DC 3-wire output, it ensures stable and interference-resistant detection for PLC panels, conveyors, and automated machinery.
Key Features
Detects metal objects only (inductive sensing principle)
Robust M18 cylindrical housing
7 mm sensing distance (flush / shielded)
PNP, DC 3-wire output
Ideal for installations close to metal surfaces
Red LED operation indicator
Reverse polarity & short-circuit protection
IP67 protection for industrial environments
Technical Specifications
| Parameter | Value |
|---|---|
| Model | PRD18-7DP |
| Sensor Type | Inductive Proximity Sensor |
| Housing Size | M18 |
| Installation | Flush (Shielded) |
| Sensing Distance | 7 mm |
| Setting Distance | 0 – 4.9 mm |
| Standard Target | Iron 20 × 20 × 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
Control & junction panels
Conveyors & material handling
Packaging & assembly machines
Position, limit & presence detection
Industrial OEM equipment
What’s in the Box
1 × Autonics PRD18-7DP Sensor
2 × Mounting nuts
1 × Washer
Instruction leaflet
FAQ
Q1. What material can PRD18-7DP detect?
Only metal objects (inductive sensing).
Q2. Is PRD18-7DP suitable for PLC input?
Yes. It has a PNP DC 3-wire output, compatible with modern PLC inputs.
Q3. What is the sensing distance?
7 mm with a standard iron target.
Q4. Why choose flush mounting?
Flush installation avoids false triggering from nearby metal surfaces.
Q5. Can it be used in dusty or oily environments?
Yes. IP67 protection ensures reliable operation.