Transcript Document 7432355

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What is Seismic Vibration?
How do you measure Seismic Vibration?
When do you measure Seismic Vibration?
Why do you need to measure Seismic
Vibration?
Seismic Sensors
Seismic Transmitters
Seismic Switches
Seismic Vibration Monitoring
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Of, subject to, or caused by an earthquake or
earth vibration
Earthshaking
lacking stability or fixity or firmness
of enormous proportions or having highly
significant consequences
Basically nothing good
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In our field Seismic vibration has to do with
the case vibration of a machine
Not the actual earth vibration
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Acceleration
 Change of velocity over time
 Units = g
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Velocity
 Distance travelled per unit time
 mm/s or ips(inches per second)
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Displacement
 Change of position
 um or mil
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Accelerometers
 Ex: TM0782A
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Velocity Sensors
 Ex: TM0793V
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Displacement Sensor
 Ex: TM079VD
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Use for measure absolute vibration bearing at
bearing point
Bearing or housing vibration
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To detect occurring or developing problems
due to machinery imbalance, misalignment,
looseness, rolling-element bearing failure,
gear defects, etc
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Accelerometers
 TM0782A
 Accelerometer with Integral Cable TM0783A
 Low Power TM0784A
 Hi-Temp. TM0785A
 Side-Exit TM0786A
 Ultra-Hi Temp TM0787A
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Velocity Sensors
 TM0793V
 Side-Exit TM0796V
 Explosion Proof TM016-793
 Low Frequency Velocity/ Displacement TM079VD
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TR1101
 Measures machinery case vibration
 3-Wire Transmitter
 4-20mA output in acceleration, velocity or
displacement
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TM016
 2-Wire Looped Powered Transmitter
 4-20mA output in acceleration or velocity
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PT580
 Digital Vibration Switch
 Acceleration and Velocity
 4-20mA output
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VS102
 Electronic Vibration Switch
 Velocity
 4-20mA output
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PT500
 Mechanical Vibration Switch
 Acceleration
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DTM 20
DM200
PT2060