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LED signal/charge level indicator KA2284 is designed for LED indication of the level of an alternating analog signal (indication of tuner settings, indication of signal level at linear output, output power indication, power indicator, indication of charge level of batteries or batteries, etc.). The indicator is perfect for the Pirate metal detector and other similar devices with sound indication, but without light.
Depending on the signal level, LEDs D1 – D3 (green) will light up, D4 (yellow), D5 (red), respectively D1 – D3 small or normal signal level, D4 – threshold level, D5 – maximum.
To adjust the signal level, there is a trimming resistor RP1 on the indicator board. There is also jumper P2 on the indicator board, having removed which, You can switch the board to AC mode. The KA2284 signal/charge level LED indicator has one 4-pin male connector, with distance between contacts 2,54 mm. The indicator can be powered from any DC source with voltage 3,5 – 15 IN.
Characteristics:
- supply voltage: 3,5 – 15 AT;
- quiescent current: 7 – 10 mA;
- output current: 7 – 10 mA;
- minimum input voltage: 50 mV;
- frequency range: 20 – 20000 Hz;
- indication range: 18 – 20 dB;
- Dimensions (L x W x H): 28 NS 21 NS 12 mm
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