AVSL 952.801 NOISE POLLUTION CONTROL SYSTEM - Manual

SET-UP PROCEDURE
Initial Power Up
On initial power up the timer/power indicator will flash and
the OK indicator LED will then illuminate. Due to certain
installation conditions the T1 and T2 indicator LEDs may flash
before returning to the OK indication LED. This unit is now
ready for adjustment.
Adjustment
VR-1 (the overall microphone gain) should be adjusted*
accordingly to determine the desired decibel (dB) level
required to trigger the unit.
Fine Adjustment
VR-2 high filter adjustment - this should be adjusted* if you
require more or less sensitivity to high frequencies, eg. vocals,
etc.
VR-3 low filter adjustment - this should be adjusted* if you
require more or less sensitivity to low frequencies, eg. bass.
*Adjustment:
Anti clockwise = less sensitive . . . Clockwise = more sensitive
VR-5 timer adjustment - this is normally set to 1 - 1.5 second
intervals giving an overall time of approximately 7 - 10 x 2
seconds. Interval steps can be set by observing the flashing
power indicator LED once on plus once off = 1 clock pulse.
5 pulses = cut off, 5 more pulses to auto reset. 10 pulses = 1
complete cycle.
After being triggered and the volume not being reduced, the
unit will then cut off for the time you have pre-set and then it
will reset.
Keyswitch
The keyswitch has two settings, monitor and active.
Monitor - allows the unit to assess the music but it will not cut
off the power if the preset level is met.
Active - allows the unit to monitor the music but will cut off
the power if the preset level is met.
TERMINAL CONNECTIONS
MAIN PANEL CONNECTIONS
M1 = Microphone +
M2 = Microphone – (earth/screen)
Ensure screened microphone cable is used to connect mic to
M1 and M2.
Note: On board relay connections (J and K) can be regarded
as an On/Off switch (i.e. when unit displays green ON LED,
contacts are closed, when red OFF LED is displayed contacts
are open circuit). The unit must be powered up and the mic
must be connected to ensure steady Green OK LED, otherwise
j-K is open circuit.
J = on board relay normally open (when unit is not
powered up)
K = on board relay common
J-K = used to switch the 30 amp relay coil/contactor coil or
other device depending on installation requirements
Note: Connections A-D are low voltage drive outputs only, and
are connected to corresponding connections on remote light
display if fitted.
A = traffic lights 0 volt (common)
B = traffic lights red channel
C = traffic lights yellow channel
D = traffic lights green channel
FA1 = fire alarm +24Vdc input from any existing fire alarm
system (usually nearest bell or siren)
FA3 = fire alarm negative input
P1 = earth
P2/P2A and P3/P3A are 18Vac input/output connections from
TX1 secondary mains transformer. The 18Vac available at these
connectors is also used to power low voltage auxiliary panels
or devices, eg. remote relays, etc.
NOISE POLLUTION
CONTROL SYSTEM
Stock code: 952.801