(4) Hold the instrument comfortably in hand or fix on tripod and
point the microphone at the suspected noise source, the
sound pressure level will be displayed.
(5) When MAX (maximum hold) mode is chosen. The
instrument captures and holds the maximum noise level for
a long period using any of the time weightings and ranges.
(6) When HOLD (data hold )mode is chosen.The hold function
freezes the reading in the display. Press the HOLD button
momentarily to activate or to exit the HOLD function
(7) Turn OFF the instrument and remove and remove battery
when not in use.
This unit conforms to the IEC651 type 2, ANSI S1.4 type 2 for
Sound Level Meters.
This Sound Level Meter has been designed to meet the
measurement requirements of safety Engineers, Health,
Industrial safety offices and sound quality control in various
environments.
Ranges from 30dB to 130dB at frequencies between
31.5Hz and 8 KHz.
Display with 0.1dB steps on a 4-digits LCD.
With two equivalent weighted sound pressure levels, A and
C.
D
D
D
D
. Specifications
Standard applied : IEC651 type 2, ANSI S1.4 type 2
Frequency range : 31.5Hz~8KHz
Measuring level range
: 30~130dB
Frequency weighting
: A/C
Microphone : 1/2 inch electret condenser microphone
Calibration : Electrical calibration with the internal
oscillator (1kHz sine wave)
Display : LCD
Digital display : 4 digits
Resolution: 0.1dB
Display Up data: 0.5 sec.
Time weighting : FAST(125mS), SLOW(1 sec.)
Level ranges : Lo: 30-100dB
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