EPRO PR9268/601-000 Electrodynamic Horizontal Sensors
Description:
PR9268/601-000 is designed to measure absolute vibrations in the frequency ranges 10..1000Hz and 4...1000Hz. with vibration amplitudes of up to 3mm (peak-peak). They provide electric signals proportional to the vibration velocity.  Mechanical velocity sensor for absolute vibration measurement of critical turbomachinery  applications such as steam, gas and hydro turbines, compressors, pumps and fans to measure case vibration.  PR9268 offers several basic types to cover a wide range of industrial measuring applications.    

The measuring element of the absolute bearing vibration sensor PR 9268 consist of a seismic mass with a coil,  suspended on membrane springs and moving in the circular gap of a permanent magnet. The membrane springs lead the measuring element in the longitudinal direction (=measuring direction).      The sensors are operated above the resonance frequency, which is between 4 and 13 Hz, depending on the type. The seismic mass remains at rest and due to the vibration of the sensor housing, an electric signal proportional to the vibration velocity is generated.   

PR9268/601-000 is Electrodynamic Horizontal Sensors with Armored 5 meters cable, Harting Plug cable end.
Dynamic Performance：
Sensitivity： 22.0 mV/mm/s ± 5% @ Pin 3, 100Ω load
16.7 mV/mm/s ± 5% @ Pin 1, 50Ω load
16.7 mV/mm/s ± 5% @ Pin 4, 20Ω load
Frequency Range： 10 to 1000Hz
Natural Frequency： 8Hz ± 1.5Hz @ 20°C (68°F)
Transverse Sensitivity： 0.10 @ 80Hz
Vibration Amplitude(mechanical Limit)：± 1500μm (± 2000μm)
Amplitude Linearity： < 2%
Maximum Acceleration： 10g (98.1 m/s2) continuous,
20g (196.2 m/s2) intermittent
Maximum Transverse Acceleration： 2g (19.62 m/s2 )
Damping Factor： ~0.7 @ 20°C (68°F)
~0.5 @ 200°C (392°F)
Resistance： 3270Ω ± 10% @ Pin 3
3770Ω ± 10% @ Pin 1
Inductance： ≤ 160 mH
Active Capacity： Insignificant
Ordering Information: