Digital frequency conversion infrared radiation principle

Digital frequency conversion infrared radiation composition:
It is composed of two parts of transmitting or receiving device.

Digital frequency conversion infrared radiation principle:
The infrared transmitter drives the infrared light emitting diodes to emit a noisy modulated infrared beam. At a distance from the infrared transmitter, an infrared receiver is placed in alignment with it. It receives the infrared radiation energy discovered by the transmitter through a phototransistor and converts it into an electrical signal through photoelectric conversion. This electrical signal is sent to the alarm controller circuit after appropriate processing.
The optical systems that are placed on the receiving and transmitting sides are generally optical lenses. It plays a role of gathering infrared light into a relatively thin beam of light so that the energy of infrared light can be transmitted in a concentrated manner. The infrared light emitting tube is placed at the focal point of the emitting optical lens, and the photosensitive crystal agro-pastoralists are placed at the focus of the receiving optical lens.

Lecco Digital Infrared Frequency Conversion Features:

Ten times the detection distance reserve, avoid false alarms caused by rain, snow, fog and other digital signal processing CPU, to ensure high stability and high reliability in harsh environmental conditions, excellent external light protection, eliminate sunlight, before the car Interference between lamps and other light sources Special optical sights can quickly align the light beam, built-in sighting of the sight level, easy to achieve accurate IP54 dust and waterproof protection angle adjustment, horizontal position ± 90 ° and vertical position ± 10 ° Frost protection, dew protection, overvoltage protection

Technical Parameters

Model number

RK-PB30D

RK-PB60D

RK-PB100D

Protection distance

Outdoor 30m

Outdoor 60m

100m outdoor

Indoor 60m

Indoor 120m

Indoor 200m

Variable frequency point

4 frequency points

Detection method

2 light beams are blocked at the same time

Infrared beam

LED double modulated pulsed light beam

Current consumption

72mA maximum

80mA maximum

Operating Voltage

10.8V--25V DC (non-polarity)

Response time

50ms--700ms

led

launcher

Green LED is bright: Power is on

receiver

Green LED is on (sensitivity is best) Red LED is on: Start reporting starts

Alarm Output

Dry contact relay output form C

Contact action: beam cut off time + delay time (1-3 s)

Contact capacity: 30V (AC/DC) not more than 1A

Tamper output

Dry contact relay output form N/C (receiver only)

Contact action: start with front cover open

Contact capacity: 30V (AC/DC) not more than 1A

temperature

-20~60°C

-25~70°C

Beam adjustment

Level: ±90°; Vertical: ±10°

Installation position

Outdoor/indoor

Materials

PC resin green

Protection IP level

IP54

Dimensions

73×177×84mm

78×196×82mm

weight

Rx: 382g, Tx: 364g

Rx: 348g, Tx: 335g

Features

Monitoring hole output, anti-frost cover, AGC

Accessories

Post Mounting Beam Sighting Kit (2 pieces/set)/Transmitter tamper switch)

Lecor infrared solution to the problem

symptom

Possible reasons

Solution

launcher

Power LED is off

1, no power
2, poor connection or short circuit

Enter DC 10.8~18V
Check wire joints and handle

receiver

The alarm LED does not light when both beams are interrupted at the same time

1, no power
2, poor connection or short circuit

No contact in the setting state

Resistor short circuit

replace

Good LED is off

failure

replace

Polycarbonate Locking system

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