Lanbao PSFT-PM2DNB 12mt Sensing Range, Output NPN NO+NC, Diameter Prismatic Polarized Retro-Reflective Photoelectric Sensor

Lanbao PSFT-PM2DNB 12mt Sensing Range, Output NPN NO+NC, Diameter Prismatic Polarized Retro-Reflective Photoelectric Sensor

Lanbao PSFT-PM2DNB 12mt Detection, Output NPN NO+NC, Rectangular Polarized Retro-Reflective Photoelectric Sensor, is a Lanbao-brand product in the rectangular photoelectric sensors category. Product code is PSFT-PM2DNB. Lanbao PSFT-PM2DNB — 12 m Polarized Retro-Reflective Photoelectric Sensor, NPN Output (NO + NC), Rectangular Polarized Retro-Reflective, 10–30V DC, IP67 Lanbao PSFT-PM2DNB is an industrial photoelectric sensor operating on the polarized retro-reflective principle (reflection back via a polarizing-filter reflector), providing highly stable presence detection up to 12 meters. The polarized optical system separates the light returning from the reflector from ambient light and surface interference, minimizing false triggering (chatter), especially on automation lines with shiny, dark, mixed-surface or vibrating surfaces. The NPN transistor outputs (NO + NC) on the sensor allow flexible use in PLC and DC control systems for status monitoring and triggering scenarios with both normal and inverse logic signals. Technical Specifications Detection Principle: Polarized Retro-Reflective (retro-reflection off a prismatic polarized reflector) Model / SKU: PSFT-PM2DNB Detection Distance: 0 – 1200 cm ( 12 meters, with polarized reflector ) Output Type / Logic: NPN, NO + NC Switching Speed: ~250–500 Hz (realistic and stable band for long-range retro models) Supply / Connection: 10 – 30 V DC, wired Protection Rating: IP67 Operating Temperature: −25°C … +55°C Light Source: IR LED (high ambient light immunity) Reflector Type: Polarized (polarized prism reflector) — recommended reflector class for difficult surfaces and glossy backgrounds Use Environment: Conveyors, production lines, package/product detection, barrier and passage control, panel/PLC digital inputs Applications Presence detection of opaque products / packages up to 12 m Barrier, gate, passage and machine safety triggering (with reflector) NPN digital input triggering + inverse logic status monitoring on PLCs Stable long-range detection on glossy-surfaced or dark-colored objects Polarized automation scenarios where false reflection triggers must be prevented Advantages Polarized reflector + polarized optics = Suppresses glossy background and surface noise Simultaneous logic monitoring with dual output (NO + NC) Industrial supply compatibility with 10–30V DC Demanding field durability with IP67 High reliability with reflector-based systems over long distances Technical Information This sensor is of the Polarized Retro-Reflective (with Reflector) class. At a distance of 12 m, it must be used with a polarized prismatic reflector. Must be connected as an NPN input (sinking input) on the PLC side. Use without a reflector does not provide a stable signal at this distance .