Larson Davis 824 User Manual

7-24 824 Reference Manual 9/29/09
measurement is reset. A special flag is set with all
exceedance records whose L
MAX
is greater that this level.
This setting can take on any integer value within the
following range:
0 to 255 dB
PK Excd Lvl 1 - (LOG, SSA) The Pk Excd Lvl 1 sets the trigger level for the primary peak
detector (Pk-I). When the primary peak detector level
exceeds this threshold, the corresponding Pk-I exceedance
count is incremented once. You can view this count on the
Stats-b display. This count is associated with the overall
measurement data and is reset when the overall
measurement is reset.
NOTE: The data for this comes from the
instantaneous peak level, selected by the
Weight setting.
This setting can include any integer value within the
following range:
0 to 255 dB
Pk Excd Lvl 2 - (LOG, SSA) The Pk Excd Lvl 2 sets the trigger level for the secondary
peak detector (Pk-II). When the secondary peak detector
level exceeds this threshold, the corresponding Pk-II
exceedance count is incremented once. You can view this
count on the Stats-b display. This count is associated with
the overall measurement data and is reset when the overall
measurement is reset.
This setting can include any integer value within the
following range:
0 to 255dB
Hysteresis - (LOG, SSA) To prevent multiple triggering/counting of the same event, a
hysteresis value may be entered. The event is triggered when
a level goes over a corresponding trigger level, but does not
become re-armed until the level drops below the value of the
trigger level minus the hysteresis value.

Larson Davis 824 Specifications

General

Brand	Larson Davis
Model	824
Category	Measuring Instruments
Language	English