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
flash on the LCD display confirming test duration has begun.
12. To pause a recording, first unlock the keypad by pressing the
FUNC
.
and
ENTER
buttons simultaneously and then press the
RUN/PAUSE
button. The pause icon will appear confirming testing is now
paused while both the DUR icon will stop flashing.
13. Press the
RUN/PAUSE
button again to resume testing.
14. When the duration time is reached, "DUR" will stop flashing and the
final 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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