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:
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
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