OBF fibre optic amplifiers for fibre optics in plastic sheath with acrylic fibres are used if no particular demands such as heat or chemical resistance are made.
The amplifiers can be mounted on a DIN rail or using fixing holes. Sensitivity, light-on/dark-on mode or measuring principle are set easily via pushbuttons on the unit. Highly visible LEDs support the user during set-up. During operation, they indicate the switching status, operation, excess gain and unstable zone.
For demanding applications extended functions are available, e.g., if the object does not stay in the detection zone long enough, it is possible to stretch the pulse time.