An increased focus on food safety has led to a rise in the frequency of washdowns in processing plants. Equipment is now being made tougher to withstand the corrosive effects of the cleaning chemicals and the water. Banner said its new miniature World-Beam Q12 series of photoelectric sensors have liquid-tight jackets, giving them a longer life span. The sensors can be used to ensure food products are set the right way on a conveyor belt, or are flowing at the correct speeds, for example. The sensor is capable of sensing up to 1.5 m and at 15, 30 and 50 mm fixed-field ranges. The sensor has been tested for washdowns in which a pressure of 1200 psi is used. The PFA jacket costs about €70 in addition to the sensor's list price. "The sensor is totally encapsulated in a PFA jacket, sealing it against chemicals and vapors that are unsuitable for standard sensor models," said Chuck Dolezalek, product development engineer. "With its tiny size and rugged housing, the Q12 is an ideal choice for caustic or washdown applications with serious space limitations."