PM-U25

Part: PM-U25 (PM-25 Series, U type) — Panasonic

Type: U-shaped Micro Photoelectric Sensor (amplifier built-in, cable type)

Description: Ultra-small U-shaped through-beam photoelectric sensor with a fixed 6 mm sensing range, 5–24 V DC supply, NPN or PNP open-collector output at up to 50 mA, 20 μs / 80 μs response times, and an IP64 rating.

Operating Conditions:

• Supply voltage: 5 to 24 V DC ±10 %, ripple P-P 10 % or less
• Operating temperature: -25 to +55 °C (no dew condensation or icing; mount on a metal body at +50 °C or above)
• Ambient humidity: 5 to 85 %RH
• Ambient light: fluorescent light 1,000 lx at the light-receiving face

Absolute Maximum Ratings:

• Output applied voltage: 30 V DC or less (between output and 0 V for NPN, between output and +V for PNP)
• Maximum sink/source current: 50 mA
• Storage temperature: -30 to +80 °C

Key Specs:

• Sensing range: 6 mm (fixed)
• Minimum sensing object: 0.8 × 1.2 mm opaque object
• Hysteresis: 0.05 mm or less
• Repeatability: 0.01 mm or less
• Current consumption: 15 mA or less
• Residual output voltage: 2 V or less at 50 mA; 1 V or less at 16 mA
• Response time: 20 μs or less (light received), 80 μs or less (light interrupted); maximum response frequency 3 kHz
• Emitter: LED, 855 nm peak wavelength, non-modulated

Features:

• Three protection circuits: reverse supply polarity, reverse output polarity, output short-circuit
• IP64 (IEC) rating from integrated molding construction
• Light-ON and Dark-ON outputs both incorporated
• Large multi-angle orange operation indicator
• 6 mm sensing gap, with beam marks for easy adjustment
• Mounts with M3 screws (M2 screws available as the MS-M2 option)
• Resin-covered cable joint for vibration and shock resistance
• Vibration resistance: 10–2,000 Hz, 1.5 mm double amplitude
• Shock resistance: 15,000 m/s²
• Voltage withstandability: 1,000 VAC for 1 min
• Insulation resistance: 20 MΩ or more at 250 V DC
• Cable extension up to 100 m with 0.3 mm² or larger cable

Applications:

• Position and object detection in compact machinery and automation equipment
• Detection of small objects, such as 0.8 × 1.2 mm opaque items

Package:

• U type body, approx. 6 × 16 × 13.4 mm, PBT enclosure with polycarbonate display section
• 4-core PVC cabtyre cable, 1 m (PM-U25, PM-U25-P), 1 m bending-resistant (PM-U25-R) or 3 m (PM-U25-C3)
• Net weight approx. 10 g (1 m cable models)