13
Making Measurements
The bargraph’s center point represents
the center level of the selected range (60
dB, 70 dB, 80 dB, and so on).
The points to the left of the center indicate
measurements less than the center level
(down to –10 dB below the selected
range). The points to the right of the cen-
ter indicate measurements greater than
the center level (up to +10 dB above the
selected range).
The bargraph updates every 0.2 or 0.5
seconds, depending on the response set-
ting. (See “Setting the Response” on
Page 9.)
Underrange Indication
When the measured sound level is lower
than the lowest sound level of the select-
ed range,
LO
appears and the bargraph
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