The 9147 series is design for condition monitoring of plants and machines, allowing users to detect any damages at an early stage. Most vibration sensors are designed with the protection class Intrinsic Safety (Ex i) and require the use of isolators. The 9147-type have an easily accessible rotary switch that allows quick and easy configuration. R. Stalhl offers customers a one and a two-channel version. The two-channel version enables users to save 50% space in the switching cabinet. Optimal signal-to-noise-ratio ensures precise signal transmission. Like all ISpac isolators, the modules are available as single units on a DIN rail, with a common power supply and collective error message via the pac-Bus, or in pac carriers.