9/29/09 Performing a Sound Level Measurement 9-15
directed arrow in the upper right corner of the display as
shown below.
To avoid this condition, select a lower range (ISM or LOG
Mode) are a higher value of Gain (SSA Mode).
Max, Min and Peak Values
As stated in ”Editing the Measurement Parameters” on page
9-5, Lmax and Lmin are measured for all combinations of
frequency weighting (A, C and Flat) and detection (Slow,
Fast and Impulse). Peak values are measured for A, C and
Flat frequency weighting. These max values represent the
highest value of each which was measured during the
measurement time interval and the min. values represent the
lowest values measured during the same time interval. A
reset operation will reset these values to the values being
measured at the instant the reset operation is activated.
The nominal range for the measurement of Peak values
using A, C or Flat weighting are specified in the section
”Peak Measurement Range (LOG and ISM modes only)” on
page C-12.
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