I. Luɔi
HY104B Handheld Sound Level MeterA ye instrument ye kek looi në kaabel ye kek looi në kaabel ye kek looi në kaabel ye kek looi në kaabel ye kek looi në kaabel ye kek looi në kaabel ye kek looi në kaabel ye kek looi në kaabel ye kek looiGB/T 3785－2010Ku StandartIEC 61672:2013"Sound Level Meter"2LevelXA wɛ̈t bï ya looi tënë akuma ye cɔl acoustic scalometer, a ye cɔl acoustic scalometer pre-amplifier ye cɔl removable, a ye cɔl loudspeaker ku akuma ye cɔl acoustic scalometer ka cɔl a cɔl a cɔl a cɔl a cɔl a cɔl a cɔl a cɔl a cɔl a c A lëu bï ya tɔ̈ɔ̈u në luɔɔi de kä ye kek looi, kä ye kek looi, kä ye kek looi, kä ye kek looi, kä ye kek looi, kä ye kek looi.
II.HY104B Handheld Sound Level Meter Main 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)、L_max(High Time Weighing Sound Level)
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).

2.4Analog output: output jacket ye3.5 mmTwo-channel headphone jack, low load impedance10 kΩYe.
——DC logarithmic voltage: output voltage is related to the measured sound voltage logarithm, output voltage is related to the level range, unit sound voltage output voltage is30 mV/dB. Kɔc bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i bɛ̈ɛ̈i+300 mV～-1500 mV, ye kɛ̈ɛ̈k ye kɛ̈ɛ̈k ye kɛ̈ɛ̈k ye kɛ̈ɛ̈k ye kɛ̈ɛ̈k ye kɛ̈ɛ̈k ye-1500 mVku+300 mVYe.
——AC linear voltage: output voltage is related to the measured voltage linearity, corresponding to the level range's boundary output voltage is
0.5 VYe.
2.5Frequency weighting:AWeight,CLɔ̈k.
2.6Timekeeping:F(Jaawu)Ye.
2.7、Measuring range:AKelas wol:30 dB～130 dB；CKelas wol:40 dB～130 dBA tɛ̈n tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u tɔ̈u
Low block:30 dB～90 dB； Middle:50 dB～110 dB; High-grade70 dB～130 dBA kuanycök.
2.8Display: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 t

2.9Kabel extension:HY7017Kabel extension, standard3mA user can customize, a length can reach50mYe.

2.10Power:2Festival6F22Tip9 VBateri ye kɔnɔ, a lëu bï ya luui në kaam de ɣän ke kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc ye kɔc10 hYe.
2.11Dimensions：Long×Width×Thick276mm×74mm×25 mmYe.
2.12、 Pɛɛr:520gYe.
2.13、 luɔɔi temperature range: 0℃～40℃Ye.

2.15Frequency range:20 Hz～16 kHzYe.