Version 3.2 8/07

4

Sound Level Monitor Operation

Measurement Considerations

1. Use a windscreen to cover the microphone in windy conditions.

2. Calibrate the meter often, especially if the meter has been idle for a long period of time.

3. Do not store/operate the meter in areas of high temperature or humidity.

4. Keep the meter and the microphone dry.

5. Avoid severe vibration when using the meter.

6. Remove the battery when the meter will be stored for long periods of time.

Initial Configuration

1. Connect the AC adaptor to the side or rear AC adaptor connector

OR Install 8 AA batteries

2. Setting the TIME

a)

Press and Hold the Time SET button until the hours display

begins to flash.

b)

Press the Time up arrow button until the hour is set.

c)

Press the SET button. The minutes display will flash. Adjust as needed.

d)

Press the SET button to step through and the arrow button to adjust;

Time of day

Hour

Time of day

Minutes

Time of day

AM / PM / 24 Hour

Year

Month

Day

Auto ON

Hour

Auto ON

Minutes

Auto OFF Hour

Auto OFF Minute

A/C Frequency Weighting

Change the Frequency Weighting by pressing the

'A/C' button. The 'A' or 'C' icon will

appear on the display.

With ‘A’ weighting selected, the frequency response of the meter is similar to the response

of the human ear. ‘A’ weighting is commonly used for environmental or hearing

conservation programs such as OSHA regulatory testing and noise ordinance law

enforcement. ‘C’ weighting is a much flatter response and is suitable for the sound level

analysis of machines, engines, etc.

Most noise measurements are performed using 'A' Weighting and SLOW Response.

Slow/ Fast Response

Press the

button to select Fast or Slow response as desired. F or S will appear in the

bottom of the LCD display.

Select FAST to capture noise peaks and noises that occur very quickly. Select the SLOW

response to monitor a sound source that has a consistent noise level or to average quickly

changing levels.

Select Slow response for most applications.