Olympus 37DL PLUS Manual
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www.olympusNDT.comTemperature CompensationVariations in material temperature cause changes in sound velocity that may affect theaccuracy of the thickness measurement. The Temperature Compensation feature allowsthe user to enter the calibration block temperature and also manually or automaticallyinput the current (high) temperature at the measurement points. The 37DL PLUS willdisplay the temperature corrected thickness that can then be saved to the internaldatalogger.DB Grid ViewThe Grid View feature allows the user to select either a Min/Max, Alarm, orA-scan flag to be viewed along with each grid point. This allows the user to quickly scanthrough a file and locate Min/Max, Alarm, or A-scan locations.Optional Oxide/Scale MeasurementThis option uses advanced algorithms to measure the thickness of oxide/scale build-upon the inside of boiler tubes. The gage simultaneously displays the metal thickness ofthe boiler tube and the thickness of the oxide layer. Knowing the thickness of the oxide/scale helps predict tube life. We recommend the use of the M2017 or M2091 transducerfor this application.Thru-Coat™ TechnologyThis innovative feature uses a single backwall echo to measure true metal thickness.The 37DL PLUS can display both metal and coating thickness, each adjusted for theircorrect material sound velocity. The gage can be set to display only the true metalthickness. There is no need to remove the paint or coating from the surface. Thru-Coatmeasurements use the new D7906-SM and D7908 dual element transducers.The 37DL PLUS automatically calculates and displaysboth the coating thickness (0.019”) and the materialthickness (0.284”) with a single backwall echo.The thickness reading of 0.376” is compensated for thechange in material sound velocity due to the tempera-ture difference between the calibrated temperature andthe material temperature (932°F).Flags clearly indicate (H) High Alarm and (L) Low Alarmthickness measurements.The 37DL PLUS displays the material thickness (0.164”)and scale thickness (0.011”) simultaneously. |
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