4-126
Applications
Industrial Turbines
Turbine-Driven Machinery
Power Generators
Gas Pumping Systems
Features
Friction-free design for long life
Self-generated, high level, low impedance output
Operates to +700°F
Description
The friction-free moving elements in CEC’s 4-138 Vibration Transducers 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 transducers. The system is simplified due to the low impedence,high level output that can drive AC meters,recorders, and control electronics without using special amplifiers.
The frictionless 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 selfgenerated sensor output is proportional to velocity.
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