Meggitt vibro-meter VM600 - Page 175

Document reference MAMPS-HW/E HARDWARE MANUAL
Edition 18 - March 2022 VM600 machinery protection system (MPS)
7-13
Smax measurement
PROCESSING MODES AND APPLICATIONS
(2) Block diagram
Figure 7-8: Measurement of S
max
using two proximity probes
Proximity
transducer
Bearing housing
To monitoring
electronics
Shaft
X input
Figure 7-9: Block diagram showing S
max
processing
Alarm level
detector
Y input
S
max
Peak
Relative shaft
processing,
with gap
Relative shaft
processing,
with gap
X vibration value + alarms
X gap value + alarms
S
max
value
S
max
alarms
Y vibration value + alarms
Y gap value + alarms