The AutoTest® eNoise is a hand-held, stand-alone portable instrument for the measurement and analysis of sound pressure level emitted by stationary vehicles at a nominated engine speed.
The eNoise is a handheld, standalone portable device for the measurement and analysis of the sound pressure level emitted by a stationary vehicle. With the additional feature of an integrated internal tachometer that simultaneously monitors the acoustic signal of the exhaust to measure the engine speed, without the need of any external wiring or additional equipment.
|Measured parameter||Sound pressure|
|Frequency range||63Hz to 10kHz|
|Max sound pressure level||120dB|
|Level ranges||60 – 100dB, 70 – 110dB, 80 – 120dB|
|Measurement time||1s in SPL Test
1.5s in Engine Speed Test
|Input parameters required||No. cylinder
|Power supply||Rechargeable battery pack (automatic power off below 10%) “Battery Flat” displayed|
|Operating time||9 hours continuous|
|Microphone||7.5mm electret, frequency range 20Hz – 20kHz|
|Display||(240 x 160) pixel full graphics display|
|Keypad||40 keys alphanumeric tactile membrane keypad|
|Physical dimensions||230 x 95 x 50mm|
|Temperature range||0° – 60°C|
|Humidity range||20% – 90%|
|Class 1|| International Electrotechnical Commission Publication IEC 61672-1 Ed. 1.0 (Bilingual 2002):
Electroacoustics – Sound level meters – Part 1: Specifi cations
|Class 1||Australian Standard AS IEC 61672.1-2004: Electroacoustics – Sound level meters – Specifications|
|Type 1||International Electrotechnical Commission Publication IEC 60654 (1979) “Precision sound level meters”|
|Type 1||Australian Standard AS 1259.1-1990 “Acoustics – Sound level meters – Part 1: Non-integrating|
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