3M eg4 user manual Replacing microphone and windscreen, Attaching/Detaching

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Replacing microphone and windscreen

Attaching/Detaching

Replacing microphone and windscreen

Attaching/Detaching

The Edge features a field replaceable microphone and a screw-on removable windscreen. 3M Quest suggests that the user replace the windscreen whenever dirt has accumulated on the windscreen prior to measuring data.

NOTE: If you ordered an Edge kit, extra windscreen(s) will be included in your case.

Attaching/Detaching the windscreen and microphone

1.First, unscrew the windscreen by turning the red ring (not the foam!) in a counterclockwise direction.

2.If you are replacing the windscreen, screw on a new windscreen in a clockwise direction until it fits firmly.

3.To unscrew the microphone, turn the microphone in a counterclockwise direction until it is removed.

4.To attach a new microphone, screw the microphone on clockwise until it fits tightly.

•The following diagram illustrates how to assemble these two devices.

Microphone (see procedure 2)

Windscreen (see procedure 1)

Figure 6-1: Microphone and windscreen assembly

053-644, Rev H Page 47 eg4