Larson Davis 824 User Manual

2-4 824 Reference Manual 9/29/09
An interval history which includes 6 L
n
values (6 values
with 0.1 dB resolution, based on user-selected percentages
with 0.01% resolution).
For Takt users, as a no-cost option, the following additional
parameters are provided:
Taktmaximal with the following combinations of frequency
weighting and time weighting:
SLM (ISM)
The SLM (ISM) is the simplest to operate, providing the
functions of a “point-and-shoot” sound level meter with
manual data storage. The SLM (ISM) Instrument ID
measures the same thirty-three sound level parameters as the
SLM&RTA (SSA) ID, but it does not provide frequency
spectrum measurement capability. However, since less
digital processing is required, the measurement linearity
range is 105 dBA, permitting the use of a single range for all
measurements.
Logging (LOG)
This ID is designed particularly for noise monitoring
applications and provides extensive automatic data storage
features. The Instrument Type designation, LOG, represents
a Logging sound level meter. Like the SLM (ISM) ID, the
measurement range is 105 dBA and does not provide
frequency spectrum measurement capability. Up to thirty-six
measured sound level parameters can be stored as a Time
History record at rates as rapid as 32 samples per second.
Taktmaximal 3 Taktmaximal 5
Slow Fast Slow Fast
A
9999
C
9999
Flat
9999

Larson Davis 824 Specifications

General

Brand	Larson Davis
Model	824
Category	Measuring Instruments
Language	English