User Manual

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REVB10/18/12,ECN8972
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8
Currentplotdatacanbeexportedtoaselectedtab‐delimitedfileforconvenientimportingin
aspreadsheetorotherapplicationsuchastheVibraScoutPostProcessor.Thisfeature
providesanalternativetothedatalogfilebyallowingtheusertoexportdataafter
acquisition.
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3. DeviceInfo
Model # and Serial #  are stored in the device EEPROM and read when the VibraScout™
applicationislaunched.Devicememoryisalsoavailabletostoreuserinformation.Enterup
to180charactersintheUserInfofieldandclickonSaveUserInfotostoretheinformationin
non‐volatilememory.WhenVibraScout™islaunched,theinformationwillbereadfromthe
deviceandappearintheUserInfofield.
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4. ApproximateBandwidth
Select the desired bandwidth based on the application requirements.The noise level
increaseswithbandwidth, soselectingalowerbandwidthwillprovideimprovedsignal/noise
at the expense of frequency response.The 7543A sample rate is equal to approximately
twice the selected bandwidth.In cases where data overflows occur due to inadequate
systemresources(CPUspeed,RAM),selectingalowerbandwidthwillusuallyeliminatethe
overflows.SeethesectionontheDataIntegrityindicatorformoreinformation.
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5. DataFileSettings
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TheDataFilepathisselectedwiththeBrowsebutton.Dataaresavedastab‐delimitedtext
for easy importing into a spreadsheet or other application when the Log To File box is
checked in the Acquisition screen. Software automatically appends date and time code to
theendofthefilenameforeasieridentificationoftestsequence.Datafileisclosedandthis
fieldisclearedeverytimeacquisitionisstopped.SelectingtheLog ToFileboxwillprompt
userforcreatinganewdatafile.
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6. Offsets
The 7543A is calibrated at the Dytran factory along each orthogonal axis using precision
fixturesandearth’sgravity.Whenthe 7543A isplacedatanyrandomposition,theOffsets
Acquirebuttonallowsthevaluesforthethree accelerationaxespitchandrolltobecaptured
and set to zero.Therefore,
relative measurements may now be made from that position.