6
Product maintenance and care
Under normal circumstances the product does not need any special maintenance.
Should the unit become dirty, wipe it with a clean damp cloth. Do not use any solvents or
detergents.
Mounting and placement
CLS-5 can be wall-mounted (see template for wall mounting at the end of this Installation
Guide) or placed on a flat and stable surface. The wires between the loop figuration and the
driver should not exceed 10 meters and should be paired or twisted.
Important! The location must provide adequate unit ventilation .
The amplifier normally generates heat during operation and needs free space for plenty of
ventilation on all sides. To prevent fire, overheating or discoloration of the nearby objects,
the amplifier should not be placed close to fragile and easily flammable materials.
Installation setup
1. Connect the loop wire to the amplifier’s loop connection terminal marked Loop (4.).
2. Connect a suitable input signal source.
3. Connect the amplifier to mains or a 12-24 VDC power source. Yellow LED (1.)
illuminated.
Default settings
1. Check that there is an input signal, green LED In (2.) illuminated.
2. If microphone is connected to Mic input, adjust the microphone sensitivity (11.).
Adjust the microphone sensitivity (8.) so the green LED In (2.) is illuminated during the
program peaks.
3. Adjust the magnetic field strength by turning the loop current potentiometer Loop
(6.) until the program peaks reach 0dB, (400 mA/m). Verify the field strength with
Univox
®
FSM field strength meter enabling RMS measurement and 125 ms integration
time. Check the sound quality with the loop receiver, Univox
®
Listener. Some
installations require adjustment of treble level. The treble control is located inside the
CLS-5 (single control potentiometer inside the unit). When increasing the treble there
is an increased risk of self-oscillation and distortion.
