| Applicable specifications | IEC 61672-1:2002 Class 1, IEC 61260:1995 Class 1, ANSI S1.4-1983 Type 1, ANSI S1.11-2004 Class 1 |
| Measurement functions | With both a sound level meter modeanalyzer mode, it is capable of simultaneous main channelsub-channel measurement in either mode. Timefrequency weighting are set separately for the mainsub-channels. |
| Measurement modes | Sound level meter mode: Measurement of all-pass values indicated in the measurement items below in the main or sub-channel, Measurement of either Lpeak or Ltm5 in the sub-channel
Analyzer mode : Real-time octave1/3 octave bａnd analysisall-pass measurement in the main channel, Only all-pass measurement in the sub-channel |
| Measurement items | Simultaneous measurement of all items in the selected time weightingfrequency weighting characteristics
Instantaneous sound pressure level Lp, Equivalent continuous sound pressure level Leq, Sound exposure level LE, Maximum sound pressure level Lmax, APMaxBandMax can be selected as maximum, Minimum sound pressure level Lmin, Maximum 5 time ratio sound level LN (1 to 99%, 1% Step), Calculation from Lp or Leq 1sec |
| Measurement time | 1 to 59 sec, 1 to 59 min, 1 to 24 hours |
| Microphonepreamplifier | Microphone UC-59, Preamplifier NH-23 |
| Measurement range | A: 25-130dB, C: 33-130dB, Z: 38-130dB |
| Frequency Range | 10 Hz-20 kHz |
| Time weighting | Main:Fast, Slow, 10ms
Sub:Fast, Slow, 10ms, Impulse |
| Display | Color semi-transparent TFT-LCD display with backlight (240 X 320 dots) |
| Power requirement | Four IEC R14P (size"C") batteries or external power supply
Operating time
Manganese batteries: R14PU, 6 hours
Alkaline batteries: LR14, 16 hours (10 hours if backlight is continuously activated) |
| Dimensionsweight | 331 (H) X 89 (W) X 51 (D) mm , approx. 730 g (including batteries) |
