Precision noise analyzer NL-22
Precision noise analyzer NL-22
Product introduction:
· Wide range measurement: 28 ~ 141dB
· Can measure parameters such as LP, Leq Le Lmax Lx Lpeak Lcpeak Lcpeak Lceq Ltm5,
· Can perform 1/1 and 1/3 octave analysis, according to the need, can measure and display several parameters of interest at the same time · Use the memory card to save the measurement data in large capacity and record the on-site sound · Suitable for environmental monitoring and construction , Industrial machinery and indoor noise measurement.
· Large LCD display has backlight function.
· ACDC output, RS-232C communication port · Weight: 300g Precision noise analyzer NL-22 Technical index:
Types of
NL -22
NL-32
Accuracy class
Type 2
Type 1
Measuring range
28-138db
measure time
10s, 1m, 10m, 5m, 10m, 15m, 30m, 1h, 8h, 24h, manual 200 hours
Instantaneous measurement
Lpeak, Lcpak, LA1, Laleq, Lceq, LATm5
Measurement function
LP, Leq, Le, Lmax, Lmin, Ln
Applicable standards
IAE60651: 1978 IEC60804: 2000, IEC / CDV1672-1
Frequency Range
20Hz ~ 8kHz
20Hz ~ 20kHz
Maximum measuring range
141dB
Microphone type
UC-52
UC-53A
Range selection
10dB is divided into 6 steps
Linear range
100db
Frequency weighting
A, C, FLAT
sampling time
30.3 μ s
20.8 μ s
Built-in reference signal
Have
Real clock
Have
Storage function
Manual and automatic storage (100 groups)
Automatic storage 1
8640000
Automatic storage 2
57600 groups
Timing function
Have
power supply
4 AA batteries
AC adapter (optional)
Have
Memory card slot
Have
1/1, 1/3 filter (optional)
Have
Microphone extension cable (optional)
Have
Printer (optional)
Have
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