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Product Information
The IRB-4X photocell is used as a safety, reversing, or opening device in conjunction with automatic operators. The IRB-4X will work with any control board that accepts dry contact in the input. This easy to install reliable photocell is used with garage doors, rolling doors, parking barriers and other equipment.

IRB-4X by EMX works without lenses so it is easy to align, making it less sensitive to fog, dust, snow, and sunlight. Used as safety, reversing, or opening device in conjunction with automatic operators.

• Works without lenses so it is easy to align.
• Contains an electronic sunlight filter.
• Features automatic compensation for temperature changes.
• Has 24 degrees of alignment freedom.
• Is capable of penetrating 70% obstruction due to fog, steam and even spray.
• Is immune to vibration.
• Does not require additional signal amplifiers or relay boxes.

• Infrared transmitter in a weather-proof NEMA 4X enclosure.
• Infrared receiver in a water-proof NEMA 4X enclosure including 5A120V AC relay output.

• Two liquid tight strain reliefs
• Two protective hoods
• Two L-shaped mounting brackets
• All the necessary mounting screws and hex nuts
• Off-delay timer adjustable for 0-15 seconds

TRANSMITTER

1. Open the front cover.
2. Attach the transmitter box to the location with 4 screws.
   
3. 3. Connect terminals 1 and 2 to 12V to 24V AC or DC using the ready-made knock-out.
4. Replace the cover and tighten it with the 4 plastic screws to ensure proper sealing of the box.

RECEIVER

1. Open the front cover.
2. Attach the receiver box to the location with 4 screws.
3. Connect terminals 4 and 5 to 12V to 24V AC or DC using the ready-made knock-out.
4. Terminal 1 is connected to normally closed, 2 to common and 3 to normally open contact of the relay. Connect these contacts to your operator as required by the manufacturer.
5. Replace the cover and tighten it with the 4 plastic screws to ensure proper sealing of the box.

• Align the transmitter and receiver, so they are in line of sight. At a distance of 30 feet, maximum 1 foot deviation is allowed from the center of the line of sight.
• Test the photocell by interrupting the beam with an object measuring approximately 8” x 8”. The relay must be actuated and the red LED lit.
• If the beam is not interrupted, it means the infrared beam is reflected from the floor or other surface. Try to change the receiver position slightly or decrease the detection range by moving the internal jumper in the receiver.
• Should you experience false detection check the power supply for voltage and noise. Sudden and large voltage changes may cause false detection. These voltage changes may occur when the motor is switched on.
• Excess gain is a measurement of the amount of infrared light collected by the receiver over and above the required minimum for normal operation. In clean environment excess gain of 1.5 is sufficient. For slightly dirty environment with light dust build-up excess gain of 5 is required. For dirty environment with obvious dust, fog or mist build-up excess gain of 10 is required. The transparent covers must be cleaned occasionally or when necessary to prevent the blocking of the infrared beam.

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Price: $141.75

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