KPS -SN10 Manual De Funcionamiento página 10

click Up and Down key to set the measurement gear level of the instrument to
get accurate measurement value.
2) Setting measurement gear level:
Press the Level▲ or ▼ keys to select appropriate gear level to measure the
current sound level, when the "UNDER" character appears, it means that the
gear level of the instrument is too high. You should press Level▼ to set a lower
gear level until the "UNDER" character disappears. When the "OVER" charac-
ter appears, it means that the gear level of the instrument is too low. You should
press Level▲ to set a lower gear level until the "OVER" character disappears.
3) Selecting the weighting mode:
To measure the sound level within the human audible range, select A weighting
mode (simulate the hearing characteristics of human ears) mode, press the
A/C key, click to select A, click again C. To measure the actual sound level,
select C weighting mode.
4) To read real-time sound level, select FAST (high speed). To obtain the aver-
age sound level, select SLOW (low speed). Press FAST/SLOW key to select
FAST or SLOW.
5) To obtain the maximum sound level, press "MAX" function key and you can
read the maximum sound level reading value, press MAX key again to return
to the normal measurement mode.
6) To light up the backlight of LCD when measuring at night,
press key.
8. CALIBRATE SOUND LEVEL METER
If the sound level meter is used for too many days, the measurement accuracy
will reduce. At this time, the sound level meter should be calibrated. Usually it
should be calibrated once a year. Standard sound source is required for cali-
bration. Please contact our company for specific method.
9. NOTES
1) Do not use the meter in hot, humid environment.
2) If the meter is not to be used for a long time, remove the batteries to avoid
electrolyte leakage damaging the instrument.
3) Auto gear level (30-130 dB) is not suitable for measuring transient impact
noise.
4) When you measure sound level outside, anti-wind ball should be installed
KPS-SN10 • Digital sound level meter
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