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5) After one minute has elapsed, the dust measurement stops automatically. The
relative concentration value or the mass concentration value (determined by the
item selected for the unit setting) and the accumulated count value are displayed.
After the measurement is finished, the displayed content can be toggled by pressing
the [UP] or [DOWN] switch. For details on specifying settings, see 3-1 Screens
During Measurement of LD-5R operation manual.
6) After finishing measurements, close the PM2.5 cyclone by lifting the cap.
7) After finishing measurements, be sure to clean inside the detector by following the
instructions in (3) Background Measurement.
(6) Switch the LD-5R power OFF
Turn off the power switch. When the power is turned off, the display goes out.
z If leaving the product unused for an extended period, be sure to remove the
batteries from the battery case.
Relative concentration value
(or mass concentration value)
Accumulated count value
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