ACES SYSTEMS Viper II, Руководство пользователя

Страница: 326 / 438

Gen II
User Manual
15-5 – Overall Vibration Survey Chapter 15 Revision 4.10, Apr 20
NOTE
Sensor Channels C & D are only available on the Viper II
15.1.1.1.5. Use the [

] key to move to the “ Units ” column of the “Channel A:” row. Select an
engineering unit from the available list by using [

] key. A selection of “None” in the
field indicates there will be no input to the Channel adjacent to the field where the word
“None” appears. Your selection determines the engineering units in which the vibration
values will be displayed. Each channel is independent of the others so that the type of
unit can vary between channels. For example, you may select IPS in channel A for
velocity, and “g’s” in channel B for acceleration. Any selection, other than “None” will
automatically provide additional selection fields in the “Mod”, “MaxValue”, “Sensor”
and “Desc” columns.
15.1.1.1.6. Use the [

] key to move to the “ Mod ” field. The “Mod” field determines the modifier
that will be applied to the engineering units of the vibration values. Consult your
equipment maintenance manual for specific requirements of a vibration survey or for
analysis guidelines. Use the [

] key to select the modifier, such as Peak, Peak-to-Peak
(Pk-Pk, otherwise known as DA or Double amplitude), RMS or Average. Consult the
appropriate equipment maintenance manual for specific requirements of an overall
vibration survey or for analysis guidelines.
15.1.1.1.7. Use the [

] key to move to the “ MaxValue ” field. Toggle between the selections by
using [

] key. The full scale indicates the maximum amplitude, relative to the
engineering units selected in paragraph 15.1.1.1.5, you reasonably expect to acquire or
the maximum amplitude of interest. You should choose an amplitude value that will
adequately display the full amplitude of any specified limit. If you do not expect
amplitudes in excess of what would normally be experienced for the equipment
application, set this field as low as possible while still allowing sufficient space to display
the maximum limitations as stated above.
15.1.1.1.8. Use the [

] key to move to the “ Sensor ” field for the Channel A: row. Use the [

] key
to select the sensor you will use for this channel. If the sensor you are using is not in the
selection list, you must enter the sensor setup. See Chapter 22 for entering a sensor
setup. Any selection other than “None” will automatically display the appropriate field in
the “Desc” column.
15.1.1.1.9. Use the [

] key to move to move to the “ Desc ” (description) field. The field defaults to
its associated channel as shown in the screenshot above. You may use the analyzer
keypad to enter a different six-character description for the channel such as “#1 Eng”, or
“Fan”.
15.1.1.1.10. ( Viper II Only )