HTA102
EN - 9
5. OPERATING INSTRUCTIONS
5.1. REAL-TIME
MEASUREMENT OF SOUND PRESSURE LEVEL
CAUTION
Always use the wind protection screen in case measurements are performed
in windy environments, and anyway in case wind is stronger than 10m/s.
Avoid mechanical shocks and keep the microphone dry.
1. Switch on the instrument using key
ON/OFF
.
2. Check system date/time and, if necessary, reset it (see § 4.3.9).
3. Carry out a full calibration in case the instrument has not been used for a long time, by
using the mobile calibrator
SC05
supplied (see § 5.4).
4. Press key
A/C
to select the weighting curve (see § 4.3.4).
5. Press key
F/S
to select the integration type (see § 4.3.6).
6. Press key
LEV
to select an appropriate range for the sound pressure level (SPL) to be
measured (see § 4.3.5).
7. Read the indication of measured SPL on the display.
8. For a better comfort, use the provided tripod by inserting it into the relevant threaded
hole on the instrument
’
s back side (see Fig. 1
–
part 17).
9. For functions HOLD and MAX MIN see § 4.3.2 and 4.3.7
5.2.
RECORDING OF SOUND PRESSURE LEVEL
The instrument allows recording the sound pressure level (SPL) over time, with
programmable sampling interval. Each recording is saved in the internal memory and can
be downloaded and shown on the PC through the provided software
SoundLink
.
1. Switch on the instrument using key
ON/OFF
.
2. Check system date/time and, if necessary, reset it (see § 4.3.9).
3. Switch off the instrument using key
ON/OFF
.
4. Perform the internal memory
’
s zeroing by pressing and holding key
REC
while the
instrument is switched on using key
ON/OFF
. The following screen appears on the
display for a moment.
Fig. 6: Zeroing of the internal memory
5. Switch off the instrument using key
ON/OFF
.
6. Set the sampling interval by pressing and holding key while the instrument is
switched on using key
ON/OFF
. The following screen appears on the display:
