unit can be mounted on a tripod (see Figure 8). The microphone should be
pointed upward forming approximately a 70-degree angle with the noise source.It
should not be pointed directly at the noise source.
Use with Windscreen
To prevent wind from blowing across the microphone and causing an
erroneous measurement of sound level, the Model WS-5 Windscreen (for 8 mm
microphones) should be used (see Figure 6). It is recommended that the
windscreen be used at all times in that it helps support the microphone in an
upright position when worn. It will also help protect the microphone under dusty,
oily, and humid conditions. The windscreen is made of reticulated polyurethane
foam. The screen is simply pushed onto the microphone when needed. The
acoustic attenuation effect of the windscreen on the dosimeter is very small and
for all practical purposes can be neglected. Maximum attenuation occurs at high
frequencies and is approximately 0.5 dB at 8 KHz, .25 dB at 5 KHz, and 0 dB at
frequencies below 2.5 KHz.
Determining Function Parameter Settings
There are over 15,000 options for setting function parameters on the
MICRO-15. The parameters are set by means of the two 8-position switches (see
Figure 9) in the battery compartment.
The setting of these switches and the corresponding parameter values can
be determined externally by pressing the CODE key on the front panel and
decoding the display by using Figure 10.
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