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VM-5011A Instruction Manuals
(TVE-6-4188E / Version 1.20)
Appendix.2 When the place where sensor is attached is not grounded
Normally, the location where sensor is installed (the device to be measured) must be
grounded.
If for some reason sensor cannot be grounded, ground it via converter as shown in Fig.A-2.
1 2 3 4
5 6 7 8
IEPE Sensor
signal convector
Sensor
Ground terminal 4
Fig.A-2 Wiring when sensor is not grounded
Memo
If the location where sensor is installed (device to be measured) is grounded,
do not make the above wiring.
By grounding at two points, a loop is formed through the ground wire, which
adversely affects the minute signal flowing through the sensor signal line, which may
prevent correct vibration measurement.
