HPJ-A21 NPN 2M diffuse scan photoelectric sensor dangan bracket OJ69

Description
The HPJ-A21 is a compact limited diffuse scan photoelectric sensor engineered for precise short-range detection applications. Featuring a stable sensing distance of 2±5 mm using a 10 × 10 cm Kodak 18% white paper target, it provides dependable Light ON operation with an NPN output configuration. The sensor incorporates an infrared LED emitter and includes a 1-turn sensitivity adjustment control for fine-tuning detection performance.

Designed for industrial environments, the HPJ-A21 offers fast 1 ms response and recovery time, high ambient light immunity—up to 3,000 lx under incandescent lighting and 10,000 lx under sunlight—and robust durability through vibration and shock resistance testing. With an operating temperature range of –20 to +50°C, IP40 protection, and built-in reverse-connection protection, the HPJ-A21 is ideal for compact machinery, positioning systems, and general automation tasks requiring accurate and stable short-range object detection.

Features (Bullet Points)
Limited diffuse scan sensor with 2M±5 mm detection range
Light ON operation mode
NPN output with 80 mA max switching capability
Infrared LED light source
Voltage drop: 1 V max at 80 mA
Output dielectric strength: 26.4 V
1 ms max response and recovery time
1-turn sensitivity adjustment
Ambient light immunity: 3,000 lx (incandescent), 10,000 lx (sunlight)
Operating temperature: –20 to +50°C
Storage temperature: –40 to +70°C
Humidity range: 35–85% RH (no condensation)
Insulation resistance: 20 MΩ min (500 VDC)
Dielectric strength:
• 1,000 VAC for 1 minute (non-controlled sections)
• 500 VAC for 1 minute (controlled sections)
Vibration resistance: 10–55 Hz, 1.5 mm amplitude, 2 hrs in X/Y/Z
Shock resistance: 500 m/s², 3 times in X/Y/Z
IP40 protection (IEC standard)
Pre-leaded wiring
Reverse-connection protection included