Olympus EPOCH 600 - Calibration Procedures

DMTA‐10007‐01EN[U8778365],Rev. B,June2010
BasicOperation39
TheEPOCH 600isalsocapableofoutputtingalarmsignalsthroughthe9‐pinD‐sub
connectoronthebackpaneloftheinstrument.
2.4 Calibration
TheEPOCH 600canbeeasilycalibratedforbothzerooffsetandvelocityinorderto
provideaccuratethickness(soundpath)measurementsfromindications.The
EPOCH 600utilizesanauto‐calibrationsystemforasimple,two‐stepapproach.The
sectionbelowoutlinesthemoststandardandbasiccalibrationexam ple. More
detailedinformationoncalibration
canbefoundintheEPOCH 600User’sManual
(P/N:DMTA‐10 006‐01EN).
2.4.1 Measurement calibration
Calibrationforaccuratedigitalmeasurementsistypicallyaccomplishedusingtwo
knownthicknessesofarepresentativematerial.Inthissection,thetermsTHINand
THICKwillbeusedtorefertoeithertwothicknesses ofablockorplate(straightbeam
calibrations)ortwolengthsofanangledsoundpath(anglebeamcalibration).
To begin calibration
1. Couplethetransducertothethinstepofthematerial.
2. Positiongate 1aroundtheresultingindicationonscreen.
3. Bringtheindicationto80 %fullscreenheightusingthe(AUTOXX%)function.
4. SelecttheAutoCalmenu(seeFigure 2 ‐13onpage 40).