Rockwell Automation 441-PEN25 Enpac Ex Data Collector - Manual (Page 61)

Publication GMSI00-UM001A-EN-E - February 2005
Setting Up Measurements 55
• You must set Trigger to "Yes" for any alarms you want to appear in the
Enpac Ex during data collection. If you set Trigger to "Yes" for two or
more alarms for the same measurement definition, Emonitor combines
the alarms before sending the combined alarm to the Enpac Ex.
• For more on how Emonitor combines alarms before sending them to
the Enpac Ex, see Alarms and the Data Collector on page 60.
The Enpac Ex does not support spectrum alarms. You can still set up the
alarms for the spectrum measurement definitions. Emonitor tests the data
against the alarms after you unload the data.
Typical spectrum measurement definitions
Figure 3.11 shows the setup for typical spectrum measurement definitions.
The first is a standard spectrum, the second is an order normalized spectrum,
and the third is a time synchronous spectrum.
Figure 3.11 Spectrum measurement definitions
The following table shows the collection specifications (in the same order as
the measurement definition table above).
The following table shows the
transducer specification in the collection
specifications.
Table 3.13 Collection specifications for spectrum measurement definitions
Transducer Window Signal Detection Fmax Lines Phase Order Norm? Averages
Accelerometer Hanning Peak 2 kHz 400 No No 4 linear
Accelerometer Hanning Peak 10 orders 400 No Yes 4 linear
Accelerometer Hanning Peak 2 kHz 400 No No 4 time synch.
Table 3.14 Transducer specification in spectrum collection specifications
Name Base Unit Input Type Units Calibration Value DC Offset
Accelerometer Acceleration ICP Accel g’s 100 0