Fiber-optic amplifiers for DIN-rail mounting from Contrinex Inc., Old Saybrook, CT, feature an 8-digit 14-segment LC display and 31 by 60 by 10 mm housing. Distance can be set via teach-in with additional manual fine adjustment. Setting range is 20–200 mm in increments of <1 mm, switching frequencies are up to 4 kHz, and values displayed are inversely proportional to the target distance. Other features include 3 operational modes, adjustable output switching delay and stretching, and an IP64 rating.
Fiber-Optic Amplifiers from Contrinex