AutoTest® eNoise

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.

Compliant with Australian Standard AS IEC 61672.1-2004: Electroacoustics – Sound level meters – Specifications
Compliant with Australian Standard AS 1259.1-1990 “Acoustics – Sound level meters”
Input parameters include engine type (no of strokes) and number of cylinders
Pre-program for 2 or 4 stroke and 1, 2, 3, 4 & 6 cylinders
Frequency range 63Hz to 10kHz
Measures in RPM
Dynamic range 60 – 100dB, 70 – 110dB, 80 – 120dB
Two modes: Monitor Mode or Test Mode
In-built memory capacity to store test results
Can upload test results to computer through included cable

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.

Specifications:

Measured parameter	Sound pressure
Frequency range	63Hz to 10kHz
Dynamic range	80dB
Max sound pressure level	120dB
Level ranges	60 – 100dB, 70 – 110dB, 80 – 120dB
Frequency weighting	A
Measurement time	1s in SPL Test 1.5s in Engine Speed Test
Displayed parameters	SPL RPM
Input parameters required	No. cylinder No. stroke
Power supply	Rechargeable battery pack (automatic power off below 10%) “Battery Flat” displayed
Operating time	9 hours continuous
IP rating	IP53
Microphone	7.5mm electret, frequency range 20Hz – 20kHz
Display	(240 x 160) pixel full graphics display
Keypad	40 keys alphanumeric tactile membrane keypad
Weight	0.4kg
Physical dimensions	230 x 95 x 50mm
Temperature range	0° – 60°C
Humidity range	20% – 90%

Applicable standards:

Type	Standard
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