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 |
UP17903-5-HLS-2A-Handbook
UP37910-6-HLS-2A-Datasheet
