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Larson Davis System 824 User Manual

Larson Davis System 824
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9/12/00 B-23
NOTE: Impulse detector is not applica-
ble for Takt levels
Where “w” indicates a number to represent the weighting
which has these values (Detector is not applicable for these
measurements):
If “w” is not provided or it is zero then the value indicated
by the Wght settings is given.
Other Read Commands
Other read commands are macro commands that send multi-
ple “R” variables, so multiple data can be retrieved from the
824 with one command. Other commands O 1, O 2, and O 4
are preprogrammed macros while O 3 is a user-defined
macro which is programmed by the Group command.
Group Read Programming
The group command permits the programming of a user-
defined macro with up to eight (8) Read variables. The
1A weight
2C weight
3 Flat weight
Code Description Response
O 1 Read SLM data nnn.n, nnn.n, nnn.n, nnn.n<CR><LF> R 4 (SPL), R 11
(TWA), R 17, (Lmin), R 21 (Lmax)<CR><LF>)
O 2 Read Wind Data nnn.n, ccc, nnn.n, nnn.n, ccc<CR><LF>
O 3 Read Group of “R” vari-
ables programmed by the
group programming com-
mand G n,r
<as programmed>
O 4 Read 824’s LCD Display,
bit mapped in a binary for-
mat
• <SOH><HIGH_COUNT><LOW_COUNT><...data...><CHKSM><CR><LF>
• There are 1024 bytes of screen data (8 lines of 128 bytes each)
• Bits in each byte represent a vertical column of 8 pixels with the lsb on top

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Larson Davis System 824 Specifications

General IconGeneral
BrandLarson Davis
ModelSystem 824
CategoryMeasuring Instruments
LanguageEnglish

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