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VIM6* Vibration Sensors
Product Description
2
Product Description
2.1
Use and Application
Vibration sensors from the VIM6* product family determine the vibration magnitude using the
root mean square (RMS) formation. This form of quadratic average determination or pre-filter-
ing allows precise statements to be made about trends relating to the status of the application.
Depending on the product versions, the vibration magnitude is determined either as the vibra-
tion acceleration (in g rms), as the vibration velocity (in mm/s), or as the vibration velocity and
temperature (in °C).
Some product versions are suitable for use in hazardous areas. The relevant national or inter-
national directives and the instruction manual for the product must be followed.
Vibration sensors from the VIM6* product family always have two temperature readings: the
measuring head temperature T
•
The measuring head temperature T
range directly at the location where the sensor is mounted. The machine surface to be
monitored must therefore not exceed or fall below the specified measuring head tempera-
ture T
•
The ambient temperature T
the ambient atmosphere in which the sensor is used.
The two temperatures are related as described below. The measuring head temperature T
always permitted to be a higher temperature than the corresponding ambient temperature T
the upper range. This means that the machine to be monitored is permitted to heat up to the
upper limit of T
the resulting ambient temperature must not exceed the upper limit of T
Example
Temperature specifications:
-35 °C ≤ T
•
-35 °C ≤ T
•
The machine to be monitored must not exceed 125 °C at the location where the sensor is
mounted, while the ambient atmosphere in which the sensor is used must not exceed 60 °C.
and the ambient temperature T
M
for the sensor.
M
describes the maximum permissible temperature range for
A
and therefore contribute to the heating of the ambient atmosphere. However,
M
≤ 125 °C
M
≤ 60 °C
A
.
A
describes the maximum permissible temperature
M
is
M
in
a
.
A
7
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