1. Giới thiệu
This manual provides detailed instructions for the installation, operation, and maintenance of the Seco-Larm Enforcer E-931-S35RRQ Photoelectric Beam Sensor. This device is designed for indoor and outdoor use to monitor entrances, secure perimeters, and detect obstructions by creating an invisible infrared beam. When the beam is broken, it triggers an alert (alarm device sold separately).
The sensor features a rugged, weatherproof enclosure, ensuring reliable performance in various environments.
2. Nội dung gói hàng
Xác minh rằng tất cả các thành phần đều có trong gói:
- Phản xạ
- Transmitter/Receiver Unit
- Giá đỡ gắn cảm biến
- Reflector Mounting Bracket
- Phần cứng lắp đặt

Image 2.1: The Seco-Larm Enforcer E-931-S35RRQ Photoelectric Beam Sensor (right) and its accompanying reflector (left).
3. Cài đặt và thiết lập
Proper installation is crucial for optimal performance. The sensor and reflector should be mounted securely and aligned precisely.
3.1 Lắp đặt
- Mount the sensor and reflector using the provided mounting brackets and hardware.
- Ensure both units are stable and free from vibrations.
- The sensor is designed for wall mounting and is suitable for both indoor and outdoor environments due to its weatherproof construction.

Hình ảnh 3.1: Cận cảnh view of the sensor unit, showing the attached cable for power and signal connections.
3.2 Đấu dây
The sensor plugs into a standard power outlet. Connect the sensor to your security system or alarm device (sold separately) according to the wiring diagram provided with your alarm system. The sensor provides an SPDT (Single-Pole Double-Throw) relay output for triggering external devices.
3.3 Căn chỉnh
Align the sensor and reflector to establish the infrared beam. The adjustable sensing distance allows for ranges up to 35 feet (11 meters). A yellow LED on the sensor indicates proper alignment. Adjust the position of the sensor and/or reflector until the yellow LED illuminates steadily, confirming the beam is established.

Hình ảnh 3.2: Chi tiết view of the sensor's front face, highlighting the yellow alignment LED and red trigger LED.
4. Hoạt động
Once installed and aligned, the Seco-Larm Enforcer E-931-S35RRQ operates by continuously emitting an infrared beam towards the reflector. The reflector bounces the beam back to the sensor. When an object breaks this invisible beam, the sensor's internal relay changes state, triggering the connected alarm or control device.
- Trạng thái nguồn: An LED light on the sensor indicates its power status.
- Alignment Indicator: A yellow LED illuminates when the sensor and reflector are correctly aligned.
- Trigger Indicator: A red LED illuminates when the infrared beam is broken, indicating a trigger event.

Image 4.1: The sensor and reflector units shown together, illustrating their relative positions for beam operation.
5. Bảo trì
The Seco-Larm Enforcer E-931-S35RRQ is designed for long-term reliability with minimal maintenance. Periodically inspect the sensor and reflector for any obstructions, dirt, or damage. Clean the lenses of both units with a soft, damp cloth to ensure clear beam transmission and reception. Ensure all mounting hardware remains secure.
KHAI THÁC. Xử lý sự cố
Nếu cảm biến không hoạt động như mong đợi, hãy xem xét những điều sau:
- No Alignment (Yellow LED Off): Check for obstructions between the sensor and reflector. Ensure both units are securely mounted and precisely aimed at each other. Verify power supply to the sensor.
- False Triggers (Red LED On without obstruction): Check for environmental factors like direct sunlight or strong light sources interfering with the beam. Ensure the lenses are clean. Verify stable mounting to prevent movement.
- Sensor Not Stopping Gate/Alarm Not Triggering: Confirm the sensor is correctly wired to the gate opener or alarm system. Some gate openers, particularly newer models from certain manufacturers (e.g., Co-z), may have specific compatibility requirements or wiring configurations that differ from standard setups. Consult your gate opener's manual or manufacturer for specific wiring instructions for photoelectric sensors. Ensure the alarm device is functional and correctly connected to the sensor's relay output.
- Hoạt động không liên tục: Check for loose wiring connections or power fluctuations. Ensure the operating temperature is within the specified range.
7. Thông số kỹ thuật
| Số hiệu mẫu | E-931-S35RRQ |
| Kiểu | Retro-Reflective Photoelectric Sensor |
| Phạm vi cảm biến | 0.5' to 35' (0.1 - 11 m) |
| Tậptage Cung cấp | 12~240VDC or 24~240VAC |
| Thời gian phản hồi | 10ms (tối đa) |
| Nguồn sáng | Đèn LED hồng ngoại |
| Đèn báo LED | Yellow LED (Alignment), Red LED (Trigger) |
| Đầu ra kích hoạt | SPDT Relay output |
| Khả năng chuyển mạch | 250VAC / 1A |
| Xếp hạng bao vây | IP 66 Weatherproof |
| Nhiệt độ môi trường | -4 ° ~ 131 ° F (-20 ° ~ 55 ° C) |
| Kích thước | 5.75 x 3.5 x 2 inch |
| Trọng lượng sản phẩm | 11.2 ounce (0.7 pound) |
| Nguồn điện | Điện có dây |
| Kiểu lắp đặt | Treo tường |
8. Bảo hành và Hỗ trợ
The Seco-Larm Enforcer E-931-S35RRQ Photoelectric Beam Sensor comes with a Bảo hành có giới hạn 1 năm kể từ ngày mua. Bảo hành này bao gồm các lỗi về vật liệu và tay nghề trong quá trình sử dụng bình thường.
For technical support or warranty claims, please contact Seco-Larm customer service. Keep your proof of purchase for warranty validation.