B45IRCINS4 V4.0 IR Classmate & IR Classmate
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Soundfield ‒ Reference & Installation Guide
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IR Classmate & IR Classmate
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Soundfield ‒ Reference & Installation Guide B45IRCINS4 V4.0
7. Setting up and testing the system
Checking the operation of the IR Classmate amplifier and speaker system
The easiest way to check the system is to connect a portable radio, MP3, laptop or CD
player into one of the auxiliary inputs (numbered 1 to 4). Adjust
the appropriate volume to a suitable level and walk around the
room, checking for a reasonably constant sound level and lack of
distortion or buzzing from any particular speaker. Buzzing or
distortion from a particular speaker may indicate a faulty speaker
or loose mount.
A 3.5mm to phono plug pair lead is supplied in the Connevans
Soundfield AV lead pack (45SIBPK1) if this has been purchased.
IR Classmate & IR Classmate
+
Soundfield
IR Classmate & IR Classmate
+
Soundfield
Solid ceiling ‒ direct or with mounting box
1
The mounting plate can be bent to allow space for the
F-connector and cable and be screwed directly to the ceiling.
2
If a mounting box is used, the box is fitted
directly to the ceiling and the sensor is fitted
to the lid as shown.
The cable exit hole is drilled by the installer to
suit the trunking used.
Wall mounted sensors
Wall mounted sensors should be mounted between
2 and 2.5m above the floor. Preferably not higher than the
speakers.
The bracket for the wall mounted sensor needs to be bent
70mm from the flat end of the bracket.
Suspended ceiling
The mounting plate can be removed
and used as a template for drilling
holes in the ceiling tiles.
70mm
Mounting the infra red sensors
Dome sensor mounting is dependent on the type of ceiling in the classroom.
15
0
m
m
Swift
TX
pendant microphone transmitter:
Place round neck and adjust neckstrap to
correct length.
Check the transmitter
As long as the transmitter has been on charge for at least 30 minutes, you will have
enough charge in the batteries to test and demonstrate the system.
Switch the Swift
TX
transmitter on. Check that the left ‘Mic A’ green LED lights. Ensure
the microphone is positioned about 150mm from the mouth and talk whilst increasing
the 'Mic A' volume on the IR Classmate until you can hear it clearly without causing
feedback whistling.
Walk around the room whilst talking. There should be no places where the sound cuts
out or sounds noisy. This is much easier to do if you can find someone else to listen to
the sound whilst you walk around the room.
