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Protection
Measurement Types
SKF Multilog On-Line System IMx-M
2 - 9
User Manual
Supported sensor-types
Typically it is used in combination with proximity probes of Eddy current type.
The Gap measurement value and alarm status is available to the user through the
following interfaces:
Front panel Display/LEDs
Modbus
Other
The measurement type
Other
is provided to enable the use of arbitrary industry
standard sensors or converters with either 0-10 V output or 4-20 mA output.
The engineering unit is user configurable and covers a broad range of physical
properties.
The measurement is, due to the low cutoff frequency of the filter applied to the in
signal, effectively a DC measurement.
The measurement value is then produced by applying zero level and sensitivity to the
raw measurement value.
Measurement with Voltage Output Sensor
EU: Engineering unit
Current (4-20 mA) or Voltage (0-10 V)
The measurement can be configured for either voltage output probes or current output
probes.
If the environment is electrically noisy, or the sensor cable lengths
are long it may be preferred to use a current output probe and
configure the measurement for Current.
Precautions / Special Care
Although the used sensor itself may have an extremely high resolution output, it is
necessary to consider the resolution of the different parts making up the whole
measurement system and the resulting resolution of the measurement value. For
example, factors affecting measurement resolution are input resolution of the PRM and
the measurement configuration parameters.
It is possible to configure a measurement in such a way that the utilized input voltage
range is so small that the measurement will suffer loss of resolution.