The ILD100DC is designed for small vehicles but can be used to drive single turn perimeter loop applications from a 12v power source.
| Room aspect ratio |
1:1 |
2:1 |
3:1 |
| Maximum area coverage m2 |
120 |
150 |
200 |
For any Induction Loop System, area coverage is dependent on several factors. Please check these assumptions and contact Ampetronic for advice if required:
- The loop is 1-2m above or below the receiver height
- There are no metal structures in the plane of the loop
- There is sufficient voltage to drive the cable length – check table below.
Maximum Cable Length
The ILD100 is designed for SINGLE TURN loops for optimum audio quality. When maximum current output is required the ILD100 can drive
- Loops with DC resistance from 0.2Ω to 0.8Ω
- Impedance up to a maximum of 0.9Ω
When operating below maximum outpuit, the ILD100DC can drive longer cable lengths – contacts us for more details.
Maximum cable length is dependent on cable type and on the application.
| Cable type |
Maximum Cable Length (m) |
|
Normal Use* |
Transient Speech* |
| 1.0mm2 copper |
34 |
39 |
| 2.5mm2 copper |
40 |
49 |
| 4.0mm2 copper |
46 |
59 |
| 1.8mm2 flat copper tape |
60 |
70 |
* Short term speech (e.g. service counter, airport PA system) can cope with limited clipping at high frequencies – Ampetronic recommends delivery of full current up to 1.2kHz for these applications.
Longer term usage or signals with music or high quality audio must deliver full current to at least 1.6kHz to prevent fatigue and give acceptable intelligibility. Many commercially available systems do not deliver sufficient voltage to reproduce critical high frequencies – ask us for more details.
ILD100DC Specifications
INPUTS
| Power |
120V and 12V DC options also available |
| Microphone input |
2 inputs: 3.5mm mono connector for electret microphones
DC powering for electret capsules. (Requires MAT60 adaptor to take XLR balanced microphone input).
Front panel recessed gain control |
| Line input |
2 x phono (RCA) connectors, impedance 60kΩ each side,
20kΩ differential. Sensitivity matched to SCART signal level.
Front panel recessed gain control |
OUTPUTS
| Drive voltage |
3.0Vrms (4.2Vpk) at maximum output current |
| Drive current |
3.4Arms (4.8Apk) continuous 1kHz sine wave
Short term peaks. 6.5A
Front panel recess drive control
Front panel LED indicates current peaks |
| Loop connector |
Lever cable clamp |
THERMAL HEAT CHART
|
|
|
|
Idle |
1/6 peak Output Current (Speech) |
1/3 peak Output Current (Pink noise) |
Full Power |
| Driver |
Channels |
Current (ARMS) |
Load Resistance (Ohms) |
AC In (W) |
BTU |
AC In (W) |
BTU |
AC In (W) |
BTU |
AC In (W) |
BTU |
| ILD1000G |
1 |
9.2 |
1.5 |
19 |
65 |
50 |
147 |
115 |
296 |
320 |
659 |
| ILD500 |
1 |
6.4 |
1.5 |
15 |
51 |
46 |
145 |
80 |
227 |
168 |
366 |
| ILD300 |
1 |
4.9 |
1.0 |
8 |
27 |
18 |
57 |
32 |
91 |
66 |
142 |
| ILD122 |
1 |
3.5 |
1.0 |
8 |
27 |
15 |
49 |
24 |
72 |
54 |
142 |
| ILD100DC |
1 |
3.4 |
0.5 |
1.02 |
3 |
6 |
19 |
12 |
37 |
20.4 |
50 |
AUDIO SYSTEM
| Freq. response |
80Hz to 6.5kHz |
| Automatic Gain Control |
The AGC is optimised for speech. Dynamic range >36dB
Front panel recessed input level control |
| Tone control |
Front panel recessed control |
ADDITIONAL FUNCTIONS
| VOX switching |
To control prioritisation of microphone 1 input. 4 different actions when microphone 1 level is at the onset of compression. Options to attenuate or turn off other inputs when microphone 1 is active, and to turn microphone 1 off when below threshold if required. |
| Cooling |
Cooling is by natural convection from the product casing. |
PHYSICAL
| Dimensions |
Width 124mm Depth 216mm Height 44mm |
| Mounting options |
Freestanding
Wall/panel mounting – mounting holes provided on rear panel |
| Weight |
1.3kg |
| Environment |
IP20 protection; 20 to 90% relative humidity; 0 to 35ºC |
