1Kuen
Ningbo HY108B Sound Level MeterA ye raan ye luɔɔi, a ye luui në kë de lööŋ ke bɛ̈ɛ̈iGB/T 3785－2010Ku StandartIEC 61672:2013"Sound Level Meter"2LevelXA wɛ̈t bɛ̈n looi tënë klas sonometer. Kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ ye kɔnɔŋ
2、 Ningbo HY108B Sound Level MeterMain Technical Parameters and Performance (Parameters kɛnɛya kɛnɛya kɛnɛya kɛnɛya kɛnɛya kɛnɛya kɛnɛya kɛnɛya kɛnɛya)
2.1Kuen luɔɔi:GB/T3785kuIEC616722LevelYe.
2.2A ka tɛmɛ:L_P(Timekeeping Level)walaL_max(High Time Weighing Sound Level)、L_min(Low Time Weighing Sound Level)、L_Cpeak(CLevel of voice peak weighting)Ye.
2.3、传递 Soni Ajuiɛɛr:HY205Tip2Level engineering measurement loudspeaker, nominal diameter12.7 mmA free field type frequency response. Nominal pressure sensitivity ye50 mV/Pa(Nominal pressure sensitivity level ye-26 dBReference value ye1 V).
2.4Frequency range:20 Hz～16 kHzYe.
2.5Frequency weighting:AWeight,CLɔ̈k.
2.6Timekeeping:F(Jaawu)、S(Jawab laar)Ye.
2.7、Measuring range:AKelas wol:30 dB～130 dB；CKelas wol:40 dB～130 dBYe.
2.8、 Limit setting range:30 dB～130 dB, sound level exceeds the threshold, gives an exceeding threshold sign, and outputs a high level. sound level exceeds the threshold, gives an exceeding threshold sign, and outputs a high level. sound level exceeds the threshold, gives an exceeding threshold sign, and
2.9Automatic kalibration range:±4.5dB(Reference value ye50mV/Pa).
2.10Display:128×64LCD ye nyuɔɔth (LCD(Resolution)0.1dB,A nɔŋ tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye tɛ̈n ye t
2.11Analog output: output jacket ye3.5 mmTwo-channel headphone jack, low load impedance10kΩYe.
——DC logarithmic voltage: output voltage is related to the measured sound voltage logarithm, unit sound voltage output voltage is15 mV/dBYe.
——AC linear voltage: output voltage is related to the measured voltage linearity, corresponding to the level range's boundary output voltage is2.0VYe.
2.12Digital output: output connector yeDB9Type man head (needle type) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head) (man head)RS232Serial port, outputASCIICode, modulation rate (Porter rate) ye9 600 BdYe.
2.13Power:2FestivalLR6Tip(5No.)Bateri, lëu bï ya luui tɛmɛn tɛmɛn tɛmɛn tɛmɛn tɛmɛn tɛmɛn tɛmɛn tɛmɛn tɛmɛn tɛmɛn27hYe.
2.14Dimensions：Long×Width×Thick210 mm×68 mm×31 mmYe.
2.15、 Pɛɛr:210 gYe.
2.16、 luɔɔi temperature range: 0℃～40℃Ye.