The 177230-00-01-CN is a Bently Nevada seismic transmitter made in the U.S.A. It converts vibration velocity into a 4-20 mA signal. This unit measures 0-12.7 mm/s RMS from 10 Hz to 1 kHz. The housing uses 316L stainless steel for harsh environments.
The 990-04-XX-01-00 is a 990 series vibration transmitter by Bently Nevada. It accepts 3300 NSv proximity probes, outputs 4–20mA, supports +12–+35Vdc, and works in non‑hazardous or Div 2 hazardous areas.
