12 September 2012
An extension of the ISpac family of Ex i isolators it has the added features, the sensors for condition monitoring of plants and machines allow 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 supply units support a wide range of sensors and transmitters. An easily accessible rotary switch allows for quick and easy configuration. Both and two-channel versions are available. The two-channel version is said to enable users to save 50% space in the switching cabinet, reducing indirect installation costs. An optimal signal-to-noise-ratio ensures highly precise signal transmission. The modules are available as single units on a DIN rail, with a common power supply and collective error message via the cost-saving pac-Bus, or in pac carriers. The pac carriers enable factory pre-wiring of plants, thus facilitating final mounting or retrofitting at a later date, and ensuring error-free installation of the isolators.The detection of problematic vibrations is indispensable in condition monitoring of process plants with rotating parts. By diagnosing danger before a failure actually happens, can help prevent costly plant shutdowns. Generally, vibration detection is successful considerably earlier than temperature, speed, or acoustic measuring.
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