| Specifications | |
| Applicable specifications | Sound level meter : Measurement method precision sound level meter IEC61672-1: 2002 Class1 IEC61260: 1995 Class 1 ANSI S1.4-1983 Type 1 ANSI S1.43-1997 type 1 ANSI S1.11-2004 Class 1 JIS C 1509-1: 2005 Class 1 JIS C 1513: 2002 Class 1 JIS C 1514: 2002 Class 1 |
| Measurement functions | With both a sound level meter mode and analyzer mode, it is capable of simultaneous main channel and sub-channel measurement in either mode. Time and frequency weiguting are set separately for the main and sub-channels. |
| Measurement items | simultaneous measurement of all items in the selected time weighting and frequency weighting characteristics 1) Instantaneous sound pressure level Lp 2) Equivalent continuous sound pressure level Leq 3)Sound exposure level Le 4)Maximum sound pressure lebel Lmax APMax and BandMax can be selected as maximum 5)Minimum sound pressure level Lmin 6)Maximum 5 time ratio sound levels Ln (1 to 99%, 1% Step) Caluculation from Lp or Leq, 1sec One of the following is possible in the sub-channel -n the sound level meter mode:dPeak sound level Lpeak Takt-max sound pressure level Ltm5 Frequency weighting characteristics are the same as sub-channel |
| Measurement times | 1 to 59 sec, 1 to 59 min, 1 to 24 hours |
| Microphone and preamplifier | Microphone:UC-59 Sensitivity:-27 dB±2 dB(1 V/Pa = 0 dB) Preamplifier:NH-23 |
| measurement range | A:25 dB to 130 dB, C:33 dB to 130 dB,Z:38 dB to 130 dB |
| Frequency range | 10Hz~20kHz |
| Analysis frequency range | Octave analysis 16Hz to 16kHz 1/3 octave analyis 12.5Hz to 20kHz |
| Frequency weighting | A, C and Z |
| Time weighting | Main channel:F(Fast), S(Slow), 10ms, Sub-channel:F(Fast), S(Slow), 10ms, impulse |
| Display | Color semi-transparent TFT-LCD display with backlight (240*320 dots) |
| Back erase function | Measurement is temporarily suspended by pressing the pause key and the previous 5 seconds of data is eliminated from the calculation. |
| USB | Besides connection to a PC as a storage device, it is also possible to use communication device class and execute control by communication commands (however, settings relating to the transfer of stored data and storage action are not possible with communication commands). |
| Power supply | Four IEC R14P (size""C"")batteries or exterminal power supply |
| Power requirement | LR14:16hours(Alkaline batteries), R14PU:6hours(Manganese batteries) |
| dimensions, weight | 331(H)*89(W)*51(D)mm, approx.730g(including batteries) |