User Manual

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