| 
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
safety 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, mining,
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 suffix include a factory-installed, internally
mounted transformer (Note; To meet UL requirements transformer must be factory installed).
All models are equipped with ½" 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.
Drivers and projector horns are ordered and shipped
separately. For performance accuracy, specifications are fisted for assembled
configurations.
| MODEL |
POWER RATING
|
FREQ.
RESPONSE |
SOUND LEVEL*
|
SENSIT-
IVITY** |
DISPER-
SION |
IMPEDANCE |
INTERNAL
XFMR ("T" versions only) |
ASSEM-
BLY SIZE |
| DRIVER |
HORN |
| HLE-2(T) |
HLE/MLE -30 |
60 Watts Cont. |
250 Hz- 12 kHz |
109dB |
-18 dBm |
120° x 60° |
16 Ohms |
60 Watt Model T-18 |
Driver & Horn
14-W x 6"H x 17-½"D (35.6 x 15.2 x 44.5cm) |
| HLE-3(T) |
HLE/MLE -30 |
108dB |
| MLE-2(T) |
HLE/MLE -30 |
30 Watts Cont. |
300 Hz 14 kHz |
107dB |
-21 dBm |
120° x 60° |
8 Ohms |
30 Watt Model T-20 |
| MLE-3(T) |
HLE/MLE -30 |
106dB |
| HLE-2(T) |
HLE/MLE -32 |
60 Watts Cont. |
190 Hz- 12 kHz |
112 dB |
-16 dBm |
95° |
16 Ohms |
60 Watt Model T-18 |
Driver & Horn
16-½"Dia. x (42 x 54.6cm) |
| HLE-3(T) |
HLE/MLE -32 |
111 dB |
| MLE-2(T) |
HLE/MLE -32 |
30 Watts Cont. |
200 Hz- 10 kHz |
110 dB |
-20 dBm |
95° |
8 Ohms |
30 Watt Model T-20 |
| MLE-3(T) |
HLE/MLE -32 |
110 dB |
*Measured 1 Watt/I Meter. ** As microphone: re 10
dynes/cm2
| UNDERWRITERS'
LABORATORY LISTINGS |
| DRIVER |
CLASS / GROUP |
FOR ATMOSPHERE
CONTAINING: |
| HLE-2(T) MLE-2(T) |
Class 1 / Group C & D plus:
Class 2 / Group E, F, & G |
Gas Atmospheres (Including
Ethyl, Ether, Gasoline Naptha, Alcohols, Butane, Propane) plus, Dust Atmospheres (Metal,
Carbon, Grain) |
| HLE-3(T) MLE-3(T) |
Class 1 / Group B, C, & D |
Gas Atmospheres (Including
Ethyl, Ether, Gasoline Naptha, Alcohols, Butane, Propane) plus, Hydrogen, Gas and Vapor,
(Manufactured Gas) |
ATLAS / SOUNDOLIER ATAPCO SECURITY &
COMMUNICATIONS GROUP
1859 INTERTECH DRIVE / FENTON, MISSOURI 63026 U.S.A. /
TELEPHONE: (314) 349-3110 / FAX: (314) 349-1251
©1997 Atlas/Soundolier Printed in U.S.A. 01097 SL2-1421
Specifications are subject to change without notice |
