Sumt ak is a top manufacturer of optical rotary encoder in Japan.Electric circuit and rotary disc made from precision glass are integrated in the Sumtak' s encoders. Please refer to the following files for proper usage.
 Line of business :
 - Rotary encorder : IRS3, IRH3, IRT3, IRM3, IRS5, IRH5, , IRS6, IRS9, LBI, AF, CAE, C
 - Interface :
 Insulation Amplifier : RMM, SHM, FIM
 Explosion proof System : SBF-18 .