ACES SYSTEMS Cobra II, Руководство пользователя

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Gen II
User Manual
13-17 – Transient Vibration Survey Chapter 13 Revision 4.10, Apr 20
13.1.1.10.2. Use the [

] and [

] keys to navigate the screen and input or select units using the keypad
or the [

] and [

] keys respectively.
13.1.1.10.3. The “Edit Limits for Channel X” banner screen, where X represents the input channel
letter A, B, C, or D, shown above, will be displayed.
13.1.1.10.4. Use the keypad to enter the lower frequency ( F – low ) in the 1) row. Move to the next
column ( F – high ) and again use the keypad to enter the upper frequency limit in the 1)
row. See paragraphs 13.1.1.5.3 and 13.1.1.5.4 for a complete description.
13.1.1.10.5. Move to the next column ( Unit ) and use the [

] and [

] keys to select the frequency
unit. This selection will determine the frequency unit where lines will be drawn on the
spectra relative to the x (frequency) axis specified in paragraph 13.1.1.1.2 above. The
available units are: xCS1, xCS2, xCS3, and xCS4 (CS is an abbreviation for Calculated
Speed) as defined in paragraph 13.1.1.4 above, xRPM used to enter a limit relative to a
specific RPM range, or xHz used to enter a limit relative to a specific Hz range.
13.1.1.10.6. Move to the “ Limit ” column and enter the amplitude limit for the bandwidth specified in
F-low and F-high of the same row. This limit will be displayed as a horizontal line
relative to the engineering units specified on the Transient Survey Setup screen in the
“Vibration:” field. When all desired limits are set, press [OK] to accept your settings and
exit the screen.
13.1.1.10.7. If multiple sensor channels use the same settings, you can copy the settings to another
channel using the [F1] through [F5] function keys.
13.1.2. – Job Identification
The next screen displayed is the “Job Identification” banner screen shown in the following
illustration. All information on this screen is optional; however, we highly recommend you fill in
as much information as possible to ease the task of storage and retrieval of surveys from the
analyzer’s memory. If you have other customer information stored, you may press the [F1] key
to select from a list of stored customer names or [F2] key for aircraft registrations, which will
then be entered into the “Customer”, or “A/C Registration” field. When all fields are completed
as desired, press [OK] to continue.