There are a number of processes and items of equipment that
are intrinsic within the successful carrying out of the predictive maintenance
processes upon any structure. The prime process involved within the predictive
maintenance effort is that of vibrations monitoring.
There are two items of equipment that are integral within vibrations monitoring. These are those of the accelerometer and of the 4-20mA transmitter. The former equipment reverberates vibrations around a structure, whilst the latter transmits said vibrations information to those analysing and disseminating it.
There are two items of equipment that are integral within vibrations monitoring. These are those of the accelerometer and of the 4-20mA transmitter. The former equipment reverberates vibrations around a structure, whilst the latter transmits said vibrations information to those analysing and disseminating it.
Two wire System
The 4-20mA
transmitter is effective as it utilises a two wire system. Through these two
wires all vibrations information is input and output from the source of the
predictive maintenance process to those who are analysing said information.
This assures that any breakages that occur within the system are easy to identify and to solve, allowing the process to continue.
This assures that any breakages that occur within the system are easy to identify and to solve, allowing the process to continue.
For more information about the 4-20mA transmitter unit, its uses, its properties and its variants, click here
mA
The mA prefix of
the transmitter is the representation of the voltage milliamperes that are
utilised within the vibrations monitoring circuit.
These voltage milliamperes are then divided by the gravity centre (g-unit) figures provided by the accelerometer. This serves to surmise as to the integrity of a structure.
These voltage milliamperes are then divided by the gravity centre (g-unit) figures provided by the accelerometer. This serves to surmise as to the integrity of a structure.
Variants
There are a
number of variations of the 4-20mA transmitter, that are each designed for
better implementation into different structures. This is dependent upon the
properties of the structures themselves.
Some of these different transmitter units are those that utilise dual output, those that are apt to high velocities and those that are 'intrinsically safe'.
Some of these different transmitter units are those that utilise dual output, those that are apt to high velocities and those that are 'intrinsically safe'.
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