Non-electric fiber unit Fiber switches Fiber switches IPA valve* stroke detection help *A valve used for isopropyl alcohol Product name Discrete sensors Flat U-Shape fiber unit HPF-T054-L05 Current Situation IPA valve problems worsen bec ause they c annot be detected immediately. Specifications for sensors vary depending on chemical solution. Through-beam photosensors do not have a display or settings. Process and equipment name General front-end , single wafer cleaning system Current Issues Problem 1 There are no through-beam photosensors that can be used in an IPA environment. Problem 2 Design of the valve stroke detection mechanism cannot be standardized. Problem 3 The cause of errors is difficult to locate because the state at the time of occurrence cannot be checked.

Non-electric fiber unit can be used in an area with IPA. Photosensors with electrical circuits/components cannot be used in IPA or other explosive atmospheres. This product can be used in explosive atmospheres by installing the fiber unit in the dangerous area and the amplifier unit in a safe area. Before use, carefully read the explosion protection regulations that apply to the facility and equipment where you plan to use the fiber unit. Product installation specifications are the same as those for through-beam photosensors from other manufacturers. Redesign work is not necessary because the...