M I N I A T U R E I N F R A R E D S E N S O R
Avoiding Optical Feedback
If installing the MS-1 in the same room as an IR flasher, it is possible for the flasher's IR output to be picked-up by the MS-1. This effect, known as an optical feedback loop, can cause erratic operation. Optical feedback is similar to acousti- cal feedback: the howling or whistling sound heard in a P.A. system when the microphone is too close to the speaker. To avoid optical feedback:
1.Lower the output power of the flasher(s) using the variable flasher level control(s) on the Niles Main System Units.
2.Re-position the flasher(s) and/or the sensor.
3.Use Niles IRC-2 flashers and cover them with the supplied IR blockers.
Changing the Color of the MS-1
The bezel surrounding the lens on the MS-1 is removable, allowing fast and easy color changes as needed. A black and white bezel are included with your MS-1. If you desire, you may paint the MS-1 bezel yourself — to blend it seamlessly into your decor.
If you need to change the color of the MS-1:
1.Hold the MS-1 as shown in (Figure 1) on next page. Unscrew the bezel by turning it counter-clockwise. Note that the MS-1's lens is held in place by the bezel — be careful not to lose it.
