Jiaxing Hengsheng HS5661A Precision Pulse Sound Level Meter

Complies with the requirements of GB/T3785.1-2010 IEC61672-2002 JJG188-2002 Level 1,

Suitable for industrial noise measurement and environmental noise measurement of various machines, vehicles, ships, electrical appliances, etc., suitable for factories and enterprises, environmental protection, labor hygiene, teaching, scientific research and other fields.

1. The HS5661A precision pulse sound level meter is a digital and high-precision acoustic measurement instrument. Due to the use of digital signal processing chips and digital detection technology, the instrument has the advantages of good stability, high reliability, and wide dynamic range. Suitable for low sound pressure level environment measurement requirements.

2. This instrument adopts a 128X64OLED display screen with adjustable brightness and clear display.

• Technical Parameter

Main technical performance:

Microphone: A 12.7mm (1/2 ") electret test condenser microphone with a sensitivity of approximately 30mV/Pa,

Frequency range: 10Hz~20kHz

Measurement range: 20dB~130dB (A) 25dB~130dB (C) 28dB~130dB (Z)

Peak C 45dB~133dB

Frequency range: 10Hz~20kHz

Frequency weighting: A weighting, C weighting, Z (without weighting)

Time weighting: Fast (F), Slow (S), Pulse (I), Peak (C)

Detector characteristics: Digital true RMS detection, peak factor ≥ 10

Range control: manual, divided into two levels, each level has a linear range greater than 100dB

Range: Low range (L) 20dB~110dB (A) Peak 45~113dB

High range (H) 30dB~130dB (A) peak 50~133dB

Execution standard: Complies with the Level 1 requirements of GB/T3785.1-2010 (IEC61672-2002) standard

AD sampling frequency: 48kHz

Measurement indicators: Lp, Lmax

Display: The instrument adopts a 128X64OLED display screen, which displays instantaneous sound level and has analog meter head indication

It has functions such as adjusting display brightness.

Output interface: AC output: 0V~2V DC output: 0V~2V RS-232C interface output

Power supply: 4 × LR6 (5 #) high-energy alkaline batteries, or 6V external power supply can be used.

Dimensions: l × b × h (mm) 260 × 72 × 30

Quality: 400g (with battery)

Working temperature: -10 ℃~50 ℃