Environment and Site Survey Measurement
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H157655_1_008
Frequency
Maximum Velocity in
Vertical Direction
Maximum Velocity in
Horizontal Direction
1-5 Hz
3 µm/s
3 µm/s
5-20 Hz
3…12 µm/s
3…12 µms
>20 Hz
12 µm/s
12 µm/s
Table 7.4:
Tolerance Level for API Damping System
Figure 7.8: Example of the Bruker Tolerance Level for API Dampers. Resolution <0.125 Hz, 1…200
Hz,> 30 min, Average Spectra Measurement 1 (displayed in velocity)
According to VDI 2038 (2013) Bruker is following the threshold values of sensitive laboratory
equipment. Bruker implemented a Nano-C limit which is less critical as Nano-D. The only big
difference in observing these data is to use a higher resolution as only 1/3 octave. We
recommend to measure with a resolution of < 0.125 Hz to get the right amplitudes in the low
frequency part (average spectra over a period of > 30 min).
Figure 7.9: Schematic Drawing of an API Type Damping System
Summary of Contents for AVANCE
Page 6: ...Contents vi H157655_1_008 ...
Page 24: ...System Components 24 H157655_1_008 ...
Page 32: ...Magnet Access and Rigging 32 H157655_1_008 ...
Page 38: ...Ceiling Height Requirements 38 H157655_1_008 ...
Page 72: ...Utility Requirements 72 H157655_1_008 ...
Page 82: ...Floor Plan 82 H157655_1_008 ...
Page 96: ...CryoProbe and Other Accessories 96 H157655_1_008 ...
Page 102: ...Contact 102 H157655_1_008 ...
Page 104: ...List of Figures 104 H157655_1_008 ...
Page 109: ...H157655_1_008 109 ...
Page 110: ...Bruker Corporation info bruker com www bruker com Order No H157655 ...