Atlas Sound HLE Series specifications HLE/MLE Series, Features, Applications, General Description

60 AND 30 WATT	HLE/MLE Series
EXPLOSION-PROOF LOUDSPEAKERS

HLE-1 Driver

HLE-1 Driver mounted to HLE/MLE-30 Horn

(order separately)

HLE-1 Driver mounted to HLE/MLE-32

Horn (order separately)

FEATURES

•Explosion-Proof Loudspeakers for Signal and Communications Systems

•Listed by UL and CSA for Use in Hazardous/Combustible Environments (noted models)

•Available with Internally Mounted, Factory-Installed Transformer

•Choice of 60 or 30 Watt High-Intelligibility Driver in Cast Aluminum Housing

•Efficiency of Reflex-Style Projectors with Wide Angle or Circular Sound Dispersion

APPLICATIONS

Install HLE or MLE Series loudspeakers to efficiently and safely communicate in combustible and dust-filled areas. All drivers comply with the regulations governing electrical equipment at hazardous locations as set forth by the National Electric Code. Drivers are listed by UL and CSA (HLE Series only). They are recommended for paging, signal and voice communication in chemical processing, petroleum, natural resource exploration and atmospheres as listed in the chart below.

GENERAL DESCRIPTION

Series HLE and MLE loudspeakers are explosion-proof compression driver/horn assemblies engineered for high-efficiency voice and electronic signal communication in hazardous areas. Drivers, which are protected within a rugged die-cast aluminum housing, are available in

60-watt (HLE Series) and 30-watt (MLE Series) power handling versions. Models with T suf- fix include a factory-installed, internally mounted transformer (Note: To meet UL requirements transformer must be factory installed). All models are equipped with 1⁄2" conduit access and an adjustable mounting bracket.

Projector horns are available in two styles to meet dispersion requirements. Model HLE/MLE- 30 is a high-quality, polycarbonate projector that creates a 120 ° x 60 ° pattern for wide area coverage. Model HLE/MLE-32 is a spun aluminum bell providing a 95 ° circular distribution emphasis.

Note: – For Canadian use (Price List page 17 Text)

Drivers and projector horns are ordered and shipped separately. For performance accuracy, specifications are listed for assembled configurations.

TWO

MODEL		POWER	FREQ.	SOUND				INTERNAL	ASSEMBLY
DRIVER	HORN	RATING	RESPONSE	LEVEL*	SENSITIVITY**	DISPERSION IMPEDANCE		XFMR	SIZE
								(“T” versions only)
HLE-1(T)	HLE/MLE-30	60 Watts	250 Hz-	109dB	-18dBm	120 ° x 60 °	16 Ohms	60 Watt	Driver & Horn
HLE-3(T)	HLE/MLE-30	Cont.	12 kHz	108dB				Model T-18 14"W x 6"H x 171⁄2”D
MLE-1(T)	HLE/MLE-30	30 Watts	300 Hz	107dB	-21dBm	120 ° x 60 °	8 Ohms	30 Watt	(35.6 x 15.2 x
MLE-3(T)	HLE/MLE-30	Cont.	14 kHz	106dB				Model T-20	44.5cm)
HLE-1(T)	HLE/MLE-32	60 Watts	190 Hz-	112dB	-16dBm	95 °	16 Ohms	60 Watt	Driver & Horn
HLE-3(T)	HLE/MLE-32	Cont.	12 kHz	111dB				Model T-18	161⁄2"Dia. x
MLE-1(T)	HLE/MLE-32	30 Watts	200 Hz-	110dB	-20dBm	95 °	8 Ohms	30 Watt	(42 x 54.6cm)
MLE-3(T)	HLE/MLE-32	Cont.	10 kHz					Model T-20
				110dB

*Measured 1 Watt / 1 Meter.

**As microphone; re 10 dynes / cm2

UNDERWRITERS' LABORATORY LISTINGS

DRIVER	CLASS / GROUP	FOR ATMOSPHERE CONTAINING:
HLE-1(T)	Class 1 / Division 1 / Group C & D	Gas Atmospheres (Including Ethyl, Ether, Gasoline Naphtha, Alcohols)
MLE-1(T)
HLE-3(T)	Class 1 / Division 1 / Group B, C & D	Gas Atmospheres (Including Ethyl, Ether, Gasoline Naphtha, Alcohols,
MLE-3(T)		Butane, Propane) plus, Hydrogen, Gas and Vapor, (Manufactured Gas)

Specifications subject to change without notice

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