26990

The 26990 is a glass Fibre Optic DC Sensor used with banner glass fibre optic assemblies for specific applications including the following, colour registration sensing in the diffuse mode (except for red-on-white contrast, which requires a green or blue light source), presence sensing of translucent materials and registration mark sensing on clear webs in the opposed mode. The sensors are useable in opposed, retroreflective and diffuse fibre optic modes with Banner glass fibre optic assemblies. The sensors are compact, modulated, self-contained fibre optic sensor. Reinforced PBT thermoplastic polyester housing, totally encapsulated, O-ring sealing, acrylic lenses and stainless steel screws.

• Protected against reverse polarity and transient voltages
• Bipolar - One current sourcing (PNP) and one current sinking (NPN) open-collector transistor Output
• 150mA maximum each output at 25°C, derated to 100mA at 70°C (derate ≈1mA per °C) Output current
• Sensors will respond to “light” or “dark” signal of 1 millisecond or longer duration, 500Hz maximum
• LIGHT/DARK operate select switch

Applications

Sensing & Instrumentation