| Linear Operating Range |
70dB |
| Detector Characteristics |
RMS and Peak |
| Frequency Weighting |
‘A’, ‘C’ & ‘Z’ Weighted in Accordance with IEC 61672-1-2002 Combinations of ‘A’, ‘A’&’C’ simultaneous or ‘A’&’Z’ simultaneous available for Leq, Lmax and Pmax |
| Time Weighting |
‘Slow’, ’Fast’ and ‘Impulse’ in Accordance with IEC 61672-1-2002 |
| Exchange Rate |
3dB, 4dB or 5dB |
| Criterion Level |
75dB, 80dB, 85dB or 90dB |
| Threshold Level |
-5dB, -10dB or OFF |
| Peak |
3dB above top of selected range |
| Display |
Custom alphanumeric LCD, digit size 7mm x 5mm |
| Memory |
2100 Data Intervals Maximum |
| Microphone/ Preamplifier |
ACO 7146A pre-polarised ½” condenser microphone, 25mV / Pa |
| Calibration |
91.0 to 120.0dB @ 1KHz |
| Batteries |
1 x PP3 (9V) Approximately 12 hours continuous use |
| Operating Temperature |
Operating Range: -10 to + 50ºC |
| Humidity |
Effect: < 0.5dB from 25% to 90% RH |
| Vibration |
No effect on instrument |