14 Running information
14.1Over-range
Under conditions of measuring range excess, defined at
140.2 dB,
Z peak, an over-range icon appears. Its displaying differs with the
measuring mode selected:
•
L-Leq mode:
- LXY: it comes fleetingly for each exceeding. It stays visible at least 1s for a better readability.
- LXpk and Leq: warning light appears during the first overload of the input stage, it stays visible during all the measurement.
•
Leq-St – 1/1 oct – NR modes:
- Leq 0.5s: warning light appears for each overload of input stage, it stays visible during the integration time of 0.5 s, then switches off
and so on...
- Leq, DI and LXpk: both warning lights appear for each input stage, they stay visible during the integration time (from 1/16 s to 60s),
then switch off and so on...
- Leq, T: warning light appears during the first overload of the input stage, it stays visible until the end of the measurement.
•
S1+S2
mode:
- Warning light appears at the first overload of input stage for each measurement, it stays visible until the end of the measurement.
•
% of presence of overloads of the input stage:
This information can be required during a mid and long term measurement, when overload indicator is displayed. Its presence does not
provide information about the frequency of occurrence of the overload but the percentage calculation provides a level of alert about
measured and displayed levels by the instrument.
Note:
A LXY minimum value may have been overloaded, for example a level of 110 dBA with a high peak factor,
while a LXY maximum value of 125 dBA with a low peak factor can not be overloaded.
14.2Power supply
When the instrument is equipped with alkaline batteries or with a battery, a symbol informs the user about the remaining
power. In case of low power, less than one bar on the pictogram, the pictogram starts blinking, the instrument stops the
measurement, saves the results and switches off.
During a mains connection for long term measurements, the pictogram automatically changes to represent a plug.
14.3Inputs / outputs / I/O programming
14.3.1 I/O 1 In
Adapted to launch a measurement from an external electronic order of 0-5 VDC maximum. Compatible with the following measurement
modes:
•
Integrating-averaging sound level meter with storage – A and C weighted
•
Integrating-averaging sound level meter – A and C weighted and analyzer by octave bands filters from 16 Hz to 16
kHz (class 1) or from 31.5Hz to 8 kHz (class 2) with storage
•
Analyzer sound level meter for the measurement according to the NR curves (as per NF S 30-010 standard)
•
Integrating-averaging sound level meter – A and C weighted and analyzer by third octave bands filters from 12.5 Hz
to 20 kHz (class 1) or from 25 Hz to 10 kHz (class 2) _ (
option)
.
55
Running information
In case of sudden failure of the sector, the measurement is not saved. To
avoid this trouble, let the batteries or the rechargeable battery inside the
instrument.
