Description; Block Diagram - AMIX SPL 25 Manuel Utilisateur

DESCRIPTION

The SPL25 allows both audio pressure level metering and recording. The associated sensor is either
the CAP65, the CAP40 or for outdoor the CAP90. Recording is in peak and in average level (Leq 1mn,
5mn, 10mn, 30mn or 60mn) weighting A or C.
Real time reading allows instantaneous level display (1s integration), Leq level (1mn,5mn,10mn,30mn or
60mn) and a Leq variation graph. Historical exportation is in text, CSV or HTML format.
The measuring range is 61dB to 123dB for average level and 71dB to 133dB for peak level. For
environmental measures select sensors CAP40B or CAP90B with a measurement range of 41dB to 123dB
in an average level and 51dB to 103dB for the peak level.
Reading and settings use LAN port (IP network). It is possible to connect several SPL25 on the same
network, allowing audio level analysis in various places, like for large rooms, or stadium. Each SPL25
will have its own IP adress.
A very important feature is the embedded web server, allowing configuration and reading the SPL
level, using any web browser, under any OS. It does not requires a specific software.
Two static relays output (Opto-Mos) allow external equipment switching. These outputs allow to
switch on a light (requires an interface) or audio level control.
USB port is used for internal software update.
A 12V DC power is supplied with the equipment.

BLOCK DIAGRAM

Phantom
supply
Input without
phantom supply)
V+
Input with
phantom supply)
V+
Phoenix 6pts
GPO
OUT
+12V 0V
+12V
ALIM
0V
Phoenix 4pts
AMIX
Sensor
detect
A Filter
LOG / RMS
C Filter
LOG / RMS
GPO1
GPO2
ADC Leq
Peak
ADC
DSP
GPO1 ON
GPO2 ON
Parameters
Memory
Three months
data logging
26
Ethernet
LAN
Controller
USB
Update
SPL25