Campbell DMM600 Instrukcja Obsługi Pobierz pdf (Strona 13)

DMM600 Duff Moisture Meter

FIGURE 4. PCDMM User Interface Display

5.2 Calibration Equation

The frequency output of the DMM600 is converted to water content using a

calibration equation. The response of the DMM600 to changing water content

is best described with a quadratic calibration equation. A factory calibration is

part of the DMM600 operating system and will always be displayed.

The factory calibration to convert frequency (MHz) to volumetric water

content is:

VolumetricWater Content freq freq=+ −5288 5905 0142

..* .*

User derived calibrations are easily loaded to the DMM600 using PCDMM.

The coefficients from the calibrations are entered into the appropriate box then

Send Calibration button is used to transfer the values to the DMM600.

5.3 Description of PCDMM Functions

This information is also available from the HELP menu.

5.3.1 Menus

Options/Comx selects computer serial communications port x.

Options/Disconnect terminates serial communications.

Options/Exit terminates program PCDMM.

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Campbell DMM600 Instrukcja Obsługi Strona 13