AMIX SNA 50-2 R Manuel Utilisateur page 88

ANNEX 1: SNA 50-2 FUNCTIONING DESCRIPTION (next)
F ) LEQ LEVEL SAVING :
This saving carries out :
 every minutes (Leq 1 min) if the instruction level is reached or overflown.
 every 10 minutes (Leq 10 min) if the instruction level is respected.
In the case of backup every minutes, the saved level is the computed Leq level on 1 min which permits a clear analysis of
acoustic pressure evolution.
G ) PC CONNECTION :
The RS232 serial port or USB port enables user to connect a PC to SNA50-2. All system data can be transfered and
analysed using software provided.
The software allows editing stored results, to print evolution curves of Leq level and to know set of configuration system .
H) TEST OF MEASUREMENT CHAIN:
In order to test measurement chain, a test is performed at each starting and every day in the evening. The test allows to
compare the measurement chain with that set up by the fitter. If the results do not match, the associated error procedure is
carried out and the occurrence is stored in memory.
AMIX
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SNA 50-2