01dB Noise Sources Accessory Air-Met Scientific

Overview

According to the regulations, both a unidirectional noise source (sound is sent in one main direction) and an omnidirectional source (sound is propagated in all directions) can be used. 01dB then offers a comprehensive range consisting of 3 noise sources suitable for each requirement:

Stand-alone unidirectional source GDB-S
Stand-alone omnidirectional source LS01
Omnidirectional source LS02

Unidirectional Noise Source GDB-S

GDB-S is a compact unidirectional noise source including the following main elements:

a power amplifier
a pink noise generator
a speaker

Hosted in a robust chassis, GDB-S is powered up by batteries that provide the user with 10 hours of continuous operating time. The user can use the wireless remote control provided in order to start and stop the source. The GDB-S source is fully integrated into the 01dB product range dedicated to building acoustics. Using the SWT001 box, the SOLO Black Edition sound level meter can indeed automatically start and stop the source during the measurement of reverberation time or acoustic insulation against airborne noise. Using software dBSOLO-B installed on a PC tablet, the operator can control both sound level meter SOLO and source GDB-S.

Omnidirectional Sources LS01/LS02

In addition to the GDB-S source, 01dB offers 2 omnidirectional sources, LS01 and LS02, compliant with standards ISO 140 and ISO 3382. Both sources have the same design. They consist of a 12-loudspeaker dodecahedron and contain each:

a power amplifier
a noise generator

Robust, compact and easy to implement, both sources LS01/LS02 can be driven using a remote control. In addition to starting and stopping the sources, the user can control:

the volume level by +/-2 dB steps or with a known gain (0 dB, -8 dB, -30 dB…).
the type of noise: pink, white, swept sine according to different frequency ranges

The LS01 source is delivered with a battery pack that provides more than 1 hour of operating time.

For more information on the 01dB Noise Sources, contact your local Air-Met office.

Features

01dB Noise Sources Features Include:

Stand-alone unidirectional source GDB-S

Compact and robust
1m Pressure Level (107 dB(Z))
Pink noise generator
Operating life: 10 hours
Remote driving with remote control (provided) or with sound level meter SOLO Black Edition associated with its SWT001 module

Stand-alone omnidirectional source LS01

Light and robust
Powerful (Lw = 115 dB(Z))
Noise generator: pink, white, swept sine...
Operating life: 1 hour
Remote driving with remote control (provided)

Omnidirectional source LS02

Light and robust
Powerful (Lw = 115 dB(Z))
Noise generator: pink, white, swept sine...
Remote driving with remote control (provided)

Specifications

01dB Noise Sources Specifications Include:

GDB-S Specifications
Reference Standards		ISO140 / ISO 717 ISO 10052 / ISO3382 DIN 52210
EC Compliance		EN 60065 (06/2004) + A1 (01/2007) Immunity: EN 55024 (09-1998) + A1 (10-2001) + A2 (01-2003)+S1 (03-2008) Emission : EN 55022 (01-2009)
Dimensions		L x H x P: 310 x 430 x 200 mm
Weight		15 kg (with batteries)
Remote Control	Number of Keys	1
	Frequency:	433 MHz EMC compliant European standard
	Operating Range:	100 m in free field
	Masse:	26 g
Power Supply		Internal charger 220V/12V with charge limiter and colour LED for charge information.
Batteries	Type:	2 batteries 6V lead acid gel with no maintenance
	Operating Life:	10 continuous hours
	Charge Duration:	12 hours
Noise Generator		Pink Noise
Sound Pressure Level at 1m		105.5 dB(A) / 107 dB(Z)

LS01/LS02 Specifications
Reference Standards		ISO140 / ISO 717 ISO 10052 / ISO3382 DIN 52210
EC Compliance		EN 60065 (06/2004) + A1 (01/2007) Immunity: EN 55024 (09-1998) + A1 (10-2001) + A2 (01-2003)+S1 (03-2008) Emission : EN 55022 (01-2009)
Dimensions		Ø 33 cm
Weight		11.5 kg for LS01 9.5 kg for LS02
Remote Control	Number of Keys:	16
	Frequency:	868 MHz, EMC compliant with European standards
	Operating Range:	20 m in free field
	Dimensions:	L x h x w: 150 x 20 x 90
Battery Pack (for LS01 only)		4 x 12/7.2Ah elements Resettable internal fuse Battery life: 60 minutes Dimensions LxWxH: 360x140x115 mm Weight: 10.8 kg
Line Input		0.7 VRMS
Noise Generator		Pink noise, White noise, Swept sine Fast white, fast pink
LS01 Output Level		Lw : 122dB, ref 1pW in (Max. output level) (switch position “I”) Lw : 115dB ref 1pW in (LINEAR) (switch position “II”)
LS02 Output Level		Lw : 121dB, ref 1pW in (Max. output level) (switch position “I”) Lw : 115dB ref 1pW in (LINEAR) (switch position “II”)
Frequency Response		50-20,000 Hz ± 3 dB switch on “LINEAR” position
	Pink Noise:	50-20,000 Hz
	White Noise:	40-20,000 Hz
	Swept Sine:	100-8,000 Hz
	Fast White:	50-20,000 Hz
	Fast Pink:	40-20,000 Hz