Vibration Transducer 4-1380 pages
4-138
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.
CEC Vibration Products • 746 Arrow Grand Circle • Covina, California 91722 • USA
(626) 938-0200 • (800) 468-1345 • Fax: (626) 938-0202 www.cecvp.com
ISO 9001:2000
AS9100
Certified
Velocity Sensors
Vibration Transducer