13
9. Clip the microphone as close as possible to the user's ear
i.e. shirt collar.
Note: Set the cable in a way that does not hinder the user's ability to
perform their tasks.
10. Press the RUN/PAUSE button to begin measuring accumulated
noise exposure.
Note: When recording begins or is restarted all buttons except the
Backlight button are locked.
11. The elapsed duration timer will start automatically and "DUR" will
ash on the LCD display conrming test duration has begun.
12. To pause a recording, rst unlock the keypad by pressing the FUNC.
and ENTER buttons simultaneously and then press the RUN/PAUSE
button. The pause icon
will appear conrming testing is now
paused while both the DUR icon will stop ashing.
13. Press the RUN/PAUSE button again to resume testing.
14. When the duration time is reached, "DUR" will stop ashing and the
nal accumulated noise exposure value is displayed.
15. To erase the previous accumulated %DOSE value and start a new
duration test, press the FUNC. and ENTER buttons simultaneously.
16. Press the FUNC. button to resume normal operation.
Noise Exposure (%DOSE) - Programmable Time Mode
This mode allows testing to begin and end at user selected times. It is
strongly advised to set the correct date and time before proceeding (see
Setting the Time and Date in Setup mode section for details).
1. Press the FUNC. button until you see SPL on the LCD.
2. Press and hold the
button to select the desired Response Time.
3. Set the Sampling Rate, Criterion Level (Lc), Exchange Rate (ER), and
Threshold Level (Lt) (see Setup Mode section for details).
Note: At start up, the meter's default settings are Sampling
Rate
2 sec., Lc 90, Lt 70, ER 3.
4. Press the FUNC. button to enter the %DOSE mode. By default, the
meter will be set to test duration (DUR).
5. Press and hold the
button to switch to programmable mode as
indicated by "BEG" on the LCD.
continued...
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