7
Leq
Sper Scientific’s Integrating Sound Datalogger measures sound pressure
level (SPL) according to A or C weighting and integrates the weighted
SPL over an established length of time, such as an 8 hour workday, to
calculate cumulative sound exposure (Leq).
Press
SPL/Leq
to toggle between SPL and Leq. For Leq measurement:
1. Press ►
װ■
(Start/Pause/Stop) to begin measurement. ► displays
along with the elapsed measurement time.
2. During measurement ►
װ■
may be pressed to pause or restart
measurement. ► will display if measurement is paused.
3. To cancel the measurement, press ►
װ■
for 2 seconds.
4. “OVER” or “UNDER” will display if the measurement is out of range.
5. Measurement will stop and
■
displays when the Leq measurement
time is up.
Note…
SET, FAST/SLOW
, and
A/C
are disabled during Leq measurement.
Date and Time Setup
The clock should be set before first use and after reinstalling the batteries.
1. Press
SET
.
2.
Press
CLOCK
to enter Date and Time Setup Mode. The date and time
will display in YY-MM-DD and HH-MM-SS format and the year will flash.
3. Press ▲or ▼ to adjust the year.
4. Press
CLOCK
to select the month.
5. Press ▲or ▼ to adjust the month.
6. Press
CLOCK
to select the day.
7. Press ▲or ▼ to adjust the day.
8. Press
CLOCK
to select the hour.
9. Press ▲or ▼ to adjust the hour.
10. Press
CLOCK
to select the minutes.
11. Press ▲or ▼ to adjust the minutes.
12. Press
CLOCK
to select the seconds.
13. Press ▲or ▼ to adjust the seconds.
14. Press
CLOCK
to save the settings and return to Normal Mode, or
press
POWER
to cancel and return to Normal Mode.
