Campbell Scientific DMM600 Duff Moisture Meter - Manual (Page 11)

DMM600 Duff Moisture Meter
3. Finger-work the duff in the sieve until it moves through the sieve and into
the sample chamber. The sieve may need to be filled more than once to
fill the chamber. The sample should fill the sample chamber to about the
beginning of the bevel on the top edge. Don’t overfill the chamber or the
compression piston may bind.
4. Remove the sieve. Ensure that the compression knob is fully out and
replace the sample chamber cap by aligning the slots of the cap with the
pins of the sample chamber. Turn the cap slightly clockwise and tighten
the chamber access thumbscrew.
5. Flip the toggle switch on the bottom of the DMM600. Turn the
compression knob clockwise until the double-beep audible signal indicates
the measurement has been made (see FIGURE 4-4 and FIGURE 4-5).
FIGURE 4-4. Turn knob to make measurement
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