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- Speaker System MLE Series
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![Atlas Sound Speaker System MLE Series User manual | Manualzz Atlas Sound Speaker System MLE Series User manual | Manualzz](http://s3.manualzz.com/store/data/051321031_1-6e15a894d0c97e610cf4116d6f9eef43-360x466.png)
60 AND 30 WATT EXPLOSION-PROOF LOUDSPEAKERS HLE/MLE Series FEATURES • Explosion-Proof Loudspeakers for Signal and Communications Systems TWO • 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 HLE-1 Driver 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 HLE-1 Driver mounted to HLE/MLE-30 Horn (order separately) 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 1⁄2" conduit access and an adjustable mounting bracket. Projector horns are available in two styles to meet dispersion requirements. Model HLE/MLE30 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) HLE-1 Driver mounted to HLE/MLE-32 Horn (order separately) DRIVER MODEL HORN HLE-1(T) HLE-3(T) MLE-1(T) MLE-3(T) HLE-1(T) HLE-3(T) MLE-1(T) MLE-3(T) Drivers and projector horns are ordered and shipped separately. For performance accuracy, specifications are listed for assembled configurations. POWER FREQ. SOUND INTERNAL RATING RESPONSE LEVEL* SENSITIVITY** DISPERSION IMPEDANCE XFMR (“T” versions only) HLE/MLE-30 HLE/MLE-30 HLE/MLE-30 HLE/MLE-30 HLE/MLE-32 HLE/MLE-32 HLE/MLE-32 HLE/MLE-32 60 Watts Cont. 30 Watts Cont. 60 Watts Cont. 30 Watts Cont. 250 Hz12 kHz 300 Hz 14 kHz 190 Hz12 kHz 200 Hz10 kHz 109dB 108dB 107dB 106dB 112dB 111dB 110dB 110dB -18dBm 120 ° x 60 ° 16 Ohms -21dBm 120 ° x 60 ° 8 Ohms -16dBm 95 ° 16 Ohms -20dBm 95 ° 8 Ohms 60 Watt Model T-18 30 Watt Model T-20 60 Watt Model T-18 30 Watt Model T-20 ASSEMBLY SIZE Driver & Horn 14"W x 6"H x 171⁄2”D (35.6 x 15.2 x 44.5cm) Driver & Horn 161⁄2"Dia. x (42 x 54.6cm) * Measured 1 Watt / 1 Meter. ** As microphone; re 10 dynes / cm2 DRIVER HLE-1(T) MLE-1(T) HLE-3(T) MLE-3(T) UNDERWRITERS' LABORATORY LISTINGS CLASS / GROUP FOR ATMOSPHERE CONTAINING: Class 1 / Division 1 / Group C & D Gas Atmospheres (Including Ethyl, Ether, Gasoline Naphtha, Alcohols) Class 1 / Division 1 / Group B, C & D Gas Atmospheres (Including Ethyl, Ether, Gasoline Naphtha, Alcohols, Butane, Propane) plus, Hydrogen, Gas and Vapor, (Manufactured Gas) Specifications subject to change without notice 1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 AtlasSound.com 167 © 2007 Atlas Sound Printed in U.S.A. 000202 SL2-1421 ARCHITECT AND ENGINEER SPECIFICATIONS Explosion proof loudspeaker shall be UL Listed for use in specified hazardous locations and/or combustible atmospheres as classified by the National Electric Code. UL approved compression driver for 60 Watt distributed application shall be Atlas Sound Model HLE-1T or HLE-3T with internally mounted 60-watt transformer Model T-18. Transformer shall have primary impedance taps at 2000, 1000, 500, 250, 125 and 85 with a 45 Ohm tap for 45 Ohm line use only. Corresponding power taps for 70.7V line use shall be 2.5, 5, 10, 20, 40 and 60. Secondary impedance shall be 4, 8 and 16 Ohms. For voice-coil circuit applications, UL Listed 60 Watt Model HLE-1, or HLE-3 with 16 Ohm voice coil shall be specified. UL approved compression driver for 30-watt distributed application shall be Atlas Sound Model MLE-1T or MLE-3T with internally mounted 30 Watt transformer Model T-20. Transformer shall have primary impedance taps at 2500, 1300, 666, 333, 167, 89 and 45 Ohms. Corresponding power taps for 70.7V line use shall be 1.8, 3.7, 7.5, 15, and 30. Power taps for 25V line shall be 1.89, 3.7, 7, and 15. Secondary impedance shall be 8 Ohms. For voice-coil circuit applications, UL Listed 30 Watt Model MLE-1, or MLE-3 with 8 Ohm voice coil shall be specified. Driver and transformer, where applicable, shall be mounted within a heavy, cast aluminum housing. Voice coils shall be field-replaceable. Projector horn shall be a reflex type with polycarbonate re-entrant section. It shall be Atlas Sound Model HLE/MLE-30 for 120˚ x 60˚ sound dispersion or HLE/MLE-32 for 95˚ sound coverage. Driver and horn assembly shall have a frequency response of _______ with sensitivity of _______(measured at 10 dynes / cm2). Sound pressure level shall be a minimum of ________(measured at 1W/1M). Specifications subject to change without notice 1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. TELEPHONE: (800) 876-3333 / FAX (800) 765-3435 © 2007 Atlas Sound Printed in U.S.A. AtlasSound.com 000202 SL2-1421
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