HLS-2A Compact hearing loop driver

HLS-2A - Class D Hearing Loop Driver
Part code: HLS-2A

Backed by Ampetronic’s 5-year warranty and free technical support, the Hearing Loop System HLS-2A features a DM2 Induction Loop driver in a steel enclosure. The unit is designed to be integrated into communication systems such as elevators, intercoms, help points and kiosk systems etc.

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Features
  • Compact & lightweight. Ideal for low profile OEM integrations
  • Low power consumption & simple integration
  • Area coverage of up to 56m2. Two turn perimeter loop @ 1:1 ratio
  • Localised area loops. Counters, walls, panels etc
  • Low lifetime cost. Excellent reliability, 5 year warranty & free technical support
  • Power supply 12-24V DC
  • Transformer isolated inputs
  • Suitable for internal & external panel integration
  • Metal loss correction
  • Secure steel enclosure
  • Unrivalled intelligibility
Standards

Safety, EMC

The HLS-2A is CE marked to indicate compliance with relevant product safety and EMC standards.

Specifications (PDF)

Click here to open datasheet in a new tab

HLS-2A Compact hearing loop driver

The HLS-2A uses efficient class D current drive technology to reduce power consumption and heat output. It is one of only a few small area induction loop driver capable of reliably driving most practical local area loops to meet the IEC60118-4 Standard even where available power or allowable heat is limited, e.g. connecting to equipment that uses PoE. The transformer isolated balanced input allows simple connection to all intercoms, help points and kiosk systems, making the HLS-2A the obvious choice for any quality intercom system.

 Applications include:

  • Intercom systems for most environments:

- Lifts / elevators
- Help & information points
- Refuge points
- Door entry systems
- Car parks & toll booths
- Security barriers & drive throughs

  • Information points & kiosks
  • Interactive exhibits
  • Compact & lightweight. Ideal for low profile OEM integrations
  • Low power consumption & simple integration
  • Area coverage of up to 56m2. Two turn perimeter loop @ 1:1 ratio
  • Localised area loops. Counters, walls, panels etc
  • Low lifetime cost. Excellent reliability, 5 year warranty & free technical support
  • Power supply 12-24V DC
  • Transformer isolated inputs
  • Suitable for internal & external panel integration
  • Metal loss correction
  • Secure steel enclosure
  • Unrivalled intelligibility

Power supply and consumption
12-24V DC: Typical local DC supply inside equipment where another supply is already present.

Whilst the HLS-2A draws less than 2.9W @ 12V DC with typical signals, you should still check that any existing supply has enough spare capacity.

Loop Performance
The HLS-2A will allow an Audio Frequency Induction Loop system that meets the requirements of IEC 60118-4 to be created, if the system is specified, installed and commissioned in an appropriate manner, including observing Ampetronic instructions.

Datasheet & Specifications
All information specified on this datasheet has been complied in accordance with the IEC 62489-1: 2010 Standard and reflects actual performance in realistic applications.

Installation Advice:
Group connections to input 1/2 with DC power cabling. Keep the loop feed cable separate from other connections. When mounting, use appropriately sized screws for your installation application; and washers when necessary. The enclosure has two screw holes, these can be easily accessed by removing the front of the enclosure.

Inputs

Power Supply Standard format: 12V DC
Nominal voltage: 12-24V DC
Min/Max Voltage: 8-30V DC
Fuse: 1.5A PTC
Power Consumption: 2.88W (240mA) continuous pink noise
9.2W (765mA) continuous sine
(0.17W (14mA) quiescent Power Save
14.4W (1200mA) max short term peak
Indication: LED on PCB
 Input 1 & 2 Connector:

Wago 2060 cage clamp for 0.2 – 0.75mm2 solid core or untinned fine stranded wire

Line Level Rated source impedance: 1.8kΩ differential,
 Lo Z speaker Input isolation: 1500V
Rated source EMF (sensitivity): -16dBu for full output
Overload: >+22dBu
SnR: >90dB
Adjustment: Level control, per channel

Outputs

Loop Output Compliance voltage: 4.2VRMS (6Vpk)
Max output current (sine): 3ARMS
Rated temperature limited output current (pink):  1.5ARMS
Rated time for delivery: 1min
Rated THD: <1%
Output Impedance: >9Ω
Current Adjustment: Full range
Current Indication: LED indicates 1ARMS
Connector: Wago 2061 cage clamp for 0.5 – 1.5mm2 solid core or untinned fine stranded wire.
Loop Impedance  0.3Ω – 1Ω, 1.3Ω reactive at 1.6kHz
Rated Load: 80uH, 0.5R

Audio System

Freq. Response 100Hz to 5kHz ±1.5dB relative to 1kHz at low level, measured as loop current with no metal loss correction.
Compression Time constants optimised for speech
(AGC) Dynamic range: >36dB
Control: by adjusting input level/gain
Indication: LED on PCB
Metal Loss 0dB to 3dB / octave boost
Correction Adjustable

Physical

Dimensions
Width 77mm
Length 124mm
Height 18mm including mounting
Weight 243g
Environment IP22: <90% relative humidity, -30 to 75 °C
Heat dissipation <3W maximum, normally less

Safety, EMC

The HLS-2A is CE marked to indicate compliance with relevant product safety and EMC standards.

hidden tab
Features
  • Compact & lightweight. Ideal for low profile OEM integrations
  • Low power consumption & simple integration
  • Area coverage of up to 56m2. Two turn perimeter loop @ 1:1 ratio
  • Localised area loops. Counters, walls, panels etc
  • Low lifetime cost. Excellent reliability, 5 year warranty & free technical support
  • Power supply 12-24V DC
  • Transformer isolated inputs
  • Suitable for internal & external panel integration
  • Metal loss correction
  • Secure steel enclosure
  • Unrivalled intelligibility
Standards

Safety, EMC

The HLS-2A is CE marked to indicate compliance with relevant product safety and EMC standards.

Specifications (PDF)

Click here to open datasheet in a new tab

Book a demonstration

For more information on these products or any other requirement you may have, please complete the form or call us on +44 (0) 1636 610062

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