Owner manual

80 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012

Chapter 2 Setting Up Measurements

• Set up a Collection Specification with Transducer set to the AC

displacement and Signal detection set to Peak-peak.

• Finish setting up the dynamic proximity probe measurement by setting

Data Type to Magnitude and Units to mils or um. You can use a Filter if

desired.

Static (DC) component or gap

• Set up a displacement transducer in the Transducer Calibration dialog

with Input type set to ‘DC Coupled’ and Units set to mils or um. Make

sure you enter the Calibration value that converts the voltage to a

displacement. If you are using the DC Input Module to remove the AC

component and attenuate the signal be a factor of 2.5, then you must

divide your transducers calibration by 2.5.

• Set up a Collection Specification with Transducer set to the DC

displacement and Signal detection set to ‘RMS.’

• Finish setting up the dynamic proximity probe measurement by setting

Data Type to ‘Magnitude and Units to mils or um.’ You must set the

Filter to ‘None’ since any type of high pass filtering removes the DC

component.

Typical Magnitude Measurement Definitions

This figure shows the setup for a typical magnitude measurement definition

Figure 13 - Magnitude Measurement Definition

This table shows the STD (Hz) 2000 collection specification.

This table shows the transducer specification in the STD (Hz) 2000 collection

specification.

This figure shows the setup for a typical set of measurement definitions with

multiple frequency bands. Note that the filter specifications used in the tables are

not currently defined in the Emonitor database. To define a new filter

specification, choose Setup > Band Filters and click New.

Table 17 - Collection Specification for Magnitude Measurement Definition

Transducer Window Signal Detection Fmax Lines Phase Order Norm? Averages

Accelerometer Hanning Peak 2 kHz 400 No No 4 linear

Table 18 - Transducer Specification in STD (Hz) 2000 Collection Specification

Name Base Unit Input Type UnitsCalibration ValueDC Offset