HT instruments SIRIUS89N - Manual (Page 64)

SIRIUS89N
EN - 62
5. Press
START/STOP to stop the measurement and display the message
"
waiting for final SPL" and then the following screen will be displayed:
05.06.01 11:43:04 Sound Pressure Level
Peak Value (dBA)
Measurement Duration
SOUND
Leq 94.2dB
Peak 121.7dB
Duration 0000:00:00
MEASURING...
PG+
.
It
contains:
- Duration: duration of the measurement expressed in hours : minutes : seconds
- L
Eq
: value of equivalent noise level during the measurement.
[ ]
⎥
⎥
⎦
⎤
⎢
⎢
⎣
⎡
⋅ =
∫
+ 0
1
1
2
10
0 / ) (
0
1
log 10
t t
t
eq
dt p t p
t
L
- Peak: peak value of SPL.
6. The displayed result can be stored pressing the
SAVE key twice (according to
paragraph 9.1).
7.3.1.1. SOUND LEVEL MEASUREMENT "faulty cases"
SOUND 05.06.01
SPL ----dB
Peak ----dB
Duration 0000:00:00
o
HT55:NO RS232
!
PG*
If the instrument
communicate with the
probe, the message
"HT55: NO RS232" will
be displayed.
The instrument can't
communicate with Probe.
Check if the Batteries aren't
weak, the cable and the
adapter are correctly
connected.
THE PREVIOUS RESULTS CAN'T BE SAVED.
START
STOP