The friction-free moving elements in CEC's 4-131 Velocity sensors assure long life and reliability. Designed for industrial applications on fixed turbines, you can use this instrument in turbine hot sections where high temperatures cause problems with other sensors. Sensors have NEC and IEC hazardous location certificates.
The system is simplified due to the low impedance, high level output that can drive AC meters, recorders, and control electronics without using special amplifiers.
The friction-less design also allows measurement of extremely low vibration levels, critical when monitoring precision balanced turbine systems. The low level is limited only by system noise. The 4-138 is a seismic mass type velocity transducer designed for measuring vertical vibrations at low frequencies and high temperatures up to +700°F (+371°C).
The output signal results from relative movement between the internal coil and magnet when the case vibrates. This magnetic damped system operates above its natural frequency. The self-generated sensor output is proportional to velocity.
Caterpillar-Solar Turbines 120649
