Measurement parameter

Lxyp, LAFp, LAFmax, LAFmin,LAF5, LAF10, LAF50, LAF90, LAF95, SD, LAeq1s, LAeqT, LAE, LAfeqT, LD, LN, LDN, Lxyi, Lxeq1s, LxeqT,  E, Cpeak+, Cpeak-

Applications

Environmental noise measurement

Display

LCD with back light (240 x 160 dots)

Statistic analysis

Yes

24H measurement

Yes

Integrating

Yes

128 records storage

Yes

IEC 61672-1:2002 Class 1

ANSI Si.4 Type 1

CNS No. 7129 Type 1

JJG-188:2002 Class 1

Yes

Display refresh

10 Hz for value; 1 Hz for graph

Microphone

½” pre-polarized condenser microphone build in preamplifier

Sensitivity : 50 mV/Pa

Frequency range : 10 Hz – 20 KHz

Heat noise : < 16 dB(A)

Measurement range

25 dB – 140 dB (A)

30 dB – 140 dB (C)

35 dB – 140 dB (Z)

Dynamic range

>  90 dB

Instrument background noise

<  13 dB (A),  15 dB (C), 25 dB (Z)

Maximum Peak C sound level measurement

50 dB – 143 dB

Time weighting

Fast, Slow, Impulse, PeakC+, PeakC-

Frequency weighting

A / C / Z

Integrating time

1 second – 24 hour, set in a given range or randomly

Frequency range

10 Hz – 20 KHz

Range gain

- 10 dB, 0 dB, 10 dB, 20 dB, 30 dB, 40 dB

Range error

Self-generated noise voltage

< 4µV (1 Hz – 23 KHz)

Measuring voltage range

15 µV – 10 Vrms

Sampling frequency

20.8 µs (48 KHz)

Analog output

A C

Starting time

< 10 seconds

Interface

USB  interface, mini B type, complying with USB 1.1, compatible with USB 2.0 which can transfer the measuring result to PC and transfer the data to the flash disk up to 8 G

Power

1.5V x 4 alkaline batteries

External power

AC 100 – 240V to DC 5V

Dimension

285 x 90 x 39 mm (L x W x H)

Weight

500g including batteries; 2.5 kgs including packaging