Ash & alain [a unit of ash & alain india pvt ltd] offers teaching optical-fibre photoelectric. Omron introduces four-channel teaching optical-fibre photoelectric sensor amplifier which has four optical-fibre amplifiers built into a single compact unit of size 32.2 x 33 x 59 mm [w x h x d]. Single channel unit has a width of 10 mm only. Sensitivity adjustment is very simple and accurate. This is done by pressing the teach button. In the functioning of the whole system there is no potentiometric adjustments are required. Multi-function models are available with built-in 40 ms off-delay timer and remote teaching function. Four-channel models have built-in mutual interference protection. More than 60 models of optical-fibre units are available to suit different types of sensing applications which include models with heat resistance up to 400°c, teflon covered for chemical and harsh environments. Opfical-fibre photoelectric sensors for high speed of 20 ms and for mark sensing applications are also available.
