Tidak ada produk di keranjang.
DAPPRA DPR-0820-NPN-NC Industrial Area Sensor Datasheet
Datasheet
DPR-0820-NPN-NC
Industrial Area Sensor · 8‑Beam · 20 mm Pitch · 140 mm Protection Height
The DAPPRA DPR-0820-NPN-NC is a DPR Series Industrial Area Sensor designed for multi‑beam object detection, machine protection and industrial automation applications. It uses through‑beam infrared detection with 8 optical beams at a 20 mm optical axis pitch, creating a 140 mm protection height.
8Optical Beams
20 mmOptical Pitch
140 mmProtection Height
206 mmTotal Height
NPN NCOutput
Product Overview
The DAPPRA DPR-0820-NPN-NC is a DPR Series Industrial Area Sensor for industrial object detection, machine protection and automated equipment applications.
The sensor uses a through‑beam infrared detection method with a separate emitter and receiver. Eight optical beams are arranged at a 20 mm optical axis pitch, creating a 140 mm protection height. For full specifications and pricing, see the DPR-0820-NPN-NC product page.
Product Identity
| Parameter | Specification |
|---|---|
| Product Series | DPR Series |
| Model | DPR-0820-NPN-NC |
| SKU | SD72 |
| Product Type | Industrial Area Sensor |
| Detection Method | Through Beam Infrared Detection |
| Manufacturer | DAPPRA Automation |
| Brand | DAPPRA |
Key Specifications
| Parameter | Specification |
|---|---|
| Beam Quantity | 8 Optical Beams |
| Optical Axis Pitch | 20 mm |
| Protection Height | 140 mm |
| Total Height | 206 mm |
| Housing Cross Section | 29 × 30 mm |
| Output Type | NPN |
| Signal Logic | NC (Normally Closed) |
| Power Supply | DC24V ±20% |
| Response Time | <5 ms |
| Detection Distance | 0.2–3 m |
| Protection Rating | IP65 |
| Operating Temperature | -10°C to +55°C |
| Safety Certification | SIL 2 / IEC 61508 |
| Compliance | CE / FCC / RoHS |
Working Principle
The DPR-0820-NPN-NC uses a through‑beam infrared detection method with a separate emitter and receiver. The emitter continuously sends multiple infrared beams toward the receiver to create a detection area. When an object enters the detection zone and blocks one or more beams, the receiver detects the interruption and changes the output signal according to the configured NPN NC logic.
Working principle of the DPR-0820-NPN-NC Industrial Area Sensor
Detection Process
- Infrared Beam Transmission — The emitter generates multiple infrared beams and sends them toward the receiver.
- Detection Area Creation — Eight optical beams are arranged at a 20 mm optical axis pitch, creating a 140 mm protection height.
- Object Detection — When an object enters the detection area, one or more infrared beams are interrupted.
- Signal Output — The receiver processes the interruption and changes the output according to the NPN NC configuration.
Model Number Explanation
DPR-0820-NPN-NC model number breakdown
| Model Code | Meaning | Description |
|---|---|---|
| DPR | Product Series | DAPPRA DPR Industrial Area Sensor Series |
| 08 | Beam Quantity | 8 optical beams |
| 20 | Optical Axis Pitch | 20 mm beam spacing |
| NPN | Output Type | NPN transistor output |
| NC | Signal Logic | Normally Closed |
Protection Height Calculation
Protection Height = (Beam Quantity − 1) × Optical Axis Pitch
(8 − 1) × 20 mm = 140 mm
NPN NC Output & Wiring
| Condition | Signal Output |
|---|---|
| Normal beam condition | 0V signal output |
| Beam interruption | No output |
DPR-0820-NPN-NC NPN NC wiring diagram
Mechanical Dimensions
DPR-0820-NPN-NC mechanical dimensions
Installation & Applications
The DPR-0820-NPN-NC supports three installation configurations: standard vertical installation, side installation and adjustable bracket installation. Its compact 8‑beam configuration with a 140 mm protection height makes it suitable for machine protection, access detection and multi‑beam area detection.
DPR-0820-NPN-NC installation options
Typical Applications
- CNC Machines — Machine access and detection applications
- Press & Hydraulic Machines — Machine-area detection and protection
- Packaging Machinery — Automated object detection
- Conveyor Systems — Material detection and control
- Robot Workcells — Peripheral detection applications
- Automated Production Equipment — Multi-beam area detection
DPR-0820-NPN-NC industrial applications
Safety & Certification
The DPR-0820-NPN-NC is supported by SIL 2 Functional Safety documentation according to IEC 61508, along with CE, FCC and RoHS compliance.
DPR-0820-NPN-NC safety and compliance certifications
Frequently Asked Questions
What is a Safety Light Curtain?
+
A Safety Light Curtain is a multi‑beam photoelectric safety device that creates an invisible infrared detection field between an emitter and receiver. When any beam is interrupted, the device sends a stop signal to the machine, protecting operators from hazardous areas.
What is an Area Sensor?
+
An Area Sensor is a multi‑beam photoelectric detection device that uses multiple infrared beams to create a detection area. Unlike a single‑point sensor, an area sensor can detect objects passing through a wider detection zone, making it suitable for object detection, counting and area monitoring.
Are Safety Light Curtain and Area Sensor the same?
+
Not necessarily. In the Indonesian industrial automation market, the two terms are sometimes used interchangeably to describe similar multi‑beam infrared sensing products. However, the actual safety function, certification and technical specifications must be verified for the specific product. The DPR-0820-NPN-NC is primarily classified as an Industrial Area Sensor and is supported by SIL 2 functional safety certification.
How do I choose the correct beam spacing or resolution?
+
Beam spacing determines the minimum detectable object size. For detecting smaller objects such as fingers or small parts, a narrower pitch (such as 10 mm or 20 mm) is recommended. For larger objects or general presence detection, a wider pitch (such as 40 mm) may be sufficient. The DPR-0820-NPN-NC uses a 20 mm optical axis pitch.
How do I calculate the protection height?
+
Protection height is calculated using the formula: (Beam Quantity − 1) × Optical Axis Pitch. For the DPR-0820-NPN-NC: (8 − 1) × 20 mm = 140 mm.
What certifications should a safety light curtain have?
+
For industrial safety applications, look for certifications such as SIL (Safety Integrity Level) according to IEC 61508, CE marking for European compliance, FCC for the US market and RoHS for environmental compliance. The DPR-0820-NPN-NC is supported by SIL 2, CE, FCC and RoHS documentation.
How does DAPPRA compare with other safety light curtain or area sensor brands?
+
DAPPRA Automation provides industrial area sensors with SIL 2 functional safety certification, CE, FCC and RoHS compliance at competitive pricing for the Indonesian market. Products are manufactured in DAPPRA’s own production facility and are supported by local technical support and OEM/ODM services. Engineers should compare products based on specifications, certifications and application requirements rather than brand name alone.
DPR-0820-NPN-NC — Product Page
View full product specifications, pricing and ordering information.
Need Technical Support or a Quote?
Contact DAPPRA Automation for engineering assistance, pricing or OEM/ODM inquiries.
Contact DAPPRA Engineer
Tambah komentar
Anda harus masuk untuk berkomentar.