Larson Davis System 824, Reference Manual

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11/8/00 Using ID Setting Files 7-5
• “LOG and SSA Time History Settings”
• “Logging SLM Interval Settings”
• “Logging SLM Exceedance History Settings”
• “Logging SLM Daily History Settings”
• “Logging SLM Define Report Settings”
In the following sections, headings for each setting or dis-
play mode will identify in parentheses the particular System
824 instruments to which they pertain, as shown in the fol-
lowing example.
Example: Title Setting - ( SSA, LOG, ISM
)
Common SLM Settings
The SSA, ISM, and LOG instrument types include standard
SLM functions. This section covers the available SLM set-
tings for these instruments.
Title Setting - (SSA, LOG, ISM)
To change the Title, use the
and keys to select each charac-
ter. Use the and keys to
replace the selected letter. Pressing
the
Reset key clears all charac-
ters from the cursor to the end of the
field.
Use the Title setting to create a title or header for printed
reports. This title/header will be placed at the top of each
report you print.
Detector Setting - (SSA, LOG,
ISM) Detector - selects the detector rate of the instrument’s RMS
detector. This setting provides the following three options:
The 824 measures all three fre-
quency weightings with three detec-
tors simultaneously and all nine of
these levels can be viewed. Slow - An exponential average with a one second
time constant.
Fast
-
An exponential average with a 1
⁄
8 second
time constant.