VC-6000
TM
Compact monitor Part C Calculated scalar values
- 60 - C100583.002 Components Vers. 07 © VC-6000
TM
Compact monitor Sept. 2011
19 Calculated scalar values
19.1 General
♦ Valid scalar values (e.g. RMS-value, Peak-value, Vector-magnitude,
etc.) can be used in a subsequent processing calculation of further
scalar values (computations); e.g. Max(X,Y)p-p, Crest Factor, sm@rt-
values etc.
♦ If a VIBROCONTROL 6000 Compact monitor device configuration has
the functionality to calculate derived scalar values, each calculated
value is represented in its own block within the signal-flow chart. The
’shaping’ of the scalar value calculation is determined during the device
configuration and can thereafter no longer be changed in its function in
the device setup. Any subsequent rearrangement of the scalar value
calculation requires a new device configuration.
♦ Calculated scalar values can be tailored for very specific, individual
requirements of a monitoring task, e.g. monitoring of a gearbox, pump,
electric motor, etc. Each machine, machine type and machine compo-
nent has its own fault symptoms which can be monitored using the
appropriate measurement methods and scalar values. If a specifically
calculated scalar value is ‘tuned’ to the properties of an individual
monitoring task, then this scalar value is, in the terminology of Brüel &
Kjaer Vibro, called a “sm@rt value”.
A sm@rt value can, already during operation of the machine, identify
faulty machine components more efficiently and accurately than general
measurement types are able to. The appropriate service and repair
measures can therefore be planned and carried out at an early stage
according to the fault and danger potential.
♦ The physical unit of the calculated scalar value is determined through
the preceding components in the signal path and cannot be changed at
the instrument.
♦ The current calculated scalar value can be read through the User
Terminal.
♦ This current value can also be fed to downstream electronic equipment
through an analogue DC output.
♦ The current scalar value can also be read through the COM-interface of
a downstream OPC-server.
♦ The current scalar value can be monitored for limit violations through
one or more Monitor blocks.
To Next Page
Loading...