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Chapter 2
FRF Frequency Response Function Extension Module
26
2. Connect the hammer to connector A.
3. Select an accelerometer of correct mass and connect to connector B.
4. Place the accelerometer on mass.
The mass can be hand-held. The use of foam or a supporting structure is
not necessary.
5. Set the Measurement parameter to Apparent Mass.
6. Set the Meas Units parameter to N/m/s2.
The instrument displays 1 kg (or other chosen mass), plus the weight of the
accelerometer:
M = calibrated mass + accelerometer mass
For example: 1 kg + 10.5 g = 1.0105 kg
Rockwell Automation Publication 1441-UM003A-EN-P - May 2011
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