1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the Dinuy DM.Tec.002 Recessed Ceiling Motion Detector. This device utilizes Passive Infrared (PIR) technology to detect movement within its coverage area, automatically controlling connected lighting or other electrical loads through its two independent output channels. It is designed for recessed installation in ceilings.
2. Safety Information
WARNING: Risk of electric shock. Installation must be performed by a qualified electrician in accordance with all local and national electrical codes.
- Always disconnect power at the circuit breaker before installing or servicing the device.
- Ensure the power supply matches the device's specifications (230V~ 50Hz).
- Do not install in locations with excessive vibration, direct sunlight, or extreme temperature fluctuations.
- Do not attempt to open or repair the device. Refer all servicing to qualified personnel.
3. Product Overview
The Dinuy DM.Tec.002 consists of two main components: a control unit and a sensor unit. The control unit houses the electrical connections and relay, while the sensor unit contains the PIR lens and adjustment potentiometers for LUX (light sensitivity) and TIME (detection duration).

Image 1: Dinuy DM.Tec.002 Motion Detector. This image displays the two primary components of the Dinuy DM.Tec.002 motion detector. The upper part shows the control unit, a rectangular white box with electrical specifications and wiring terminals (L, N, D1, D2, L'). The lower part shows the circular recessed sensor unit, featuring a domed PIR lens and two adjustment potentiometers labeled "LUX" and "TIME" with corresponding up/down arrows.
Key Features:
- PIR Technology: Detects movement by sensing infrared radiation changes.
- 360° Coverage: Wide detection angle for comprehensive area monitoring.
- 2 Output Channels: Allows control of two separate loads.
- Adjustable LUX Level: Configures the ambient light threshold for activation.
- Adjustable Time Delay: Sets how long the load remains active after detection.
- Adjustable Sensitivity: Detection sensitivity can be fine-tuned (requires EM MAN DM0 remote, sold separately).
- Zero-Crossing Switching: Extends relay life by switching at the zero-crossing point of the AC cycle.
- Universal Load Compatibility: Suitable for LED, fluorescent, and incandescent lamps.
4. Setup and Installation
The Dinuy DM.Tec.002 is designed for recessed ceiling installation. Ensure the installation location provides optimal coverage and avoids obstructions.
4.1. Installation Location:
- Mount at a height of approximately 2.5 meters for optimal 360° coverage up to a diameter of 7 meters.
- Avoid placing near heat sources (e.g., vents, radiators) or in areas with rapid air currents, which can cause false detections.
- Ensure the sensor has a clear line of sight to the detection area.
4.2. Wiring Diagram:
Refer to the markings on the control unit for correct wiring. The device operates on a 230V~ 50Hz supply.
- L: Live input (Phase)
- N: Neutral input
- L': Switched Live output for Channel 1
- D1: Output for Channel 1 (e.g., lighting)
- D2: Output for Channel 2 (e.g., ventilation, secondary lighting)
- Connect the sensor unit to the control unit via the designated "SENSOR" port.
Ensure all connections are secure and insulated. Incorrect wiring can damage the device or pose a safety hazard.
5. Operating Instructions
Once installed and powered, the detector will begin operation. Adjustments can be made using the potentiometers on the sensor unit.
5.1. LUX Adjustment (Light Sensitivity):
The "LUX" potentiometer controls the ambient light level at which the detector will activate. Turn the potentiometer:
- Towards the sun symbol (higher LUX value) for activation only in brighter conditions (e.g., during the day).
- Towards the moon symbol (lower LUX value) for activation in darker conditions (e.g., at night or in dimly lit areas).
Set the LUX level to your desired threshold. For testing, set it to the maximum (sun symbol) to ensure it activates regardless of ambient light.
5.2. TIME Adjustment (Time Delay):
The "TIME" potentiometer sets the duration the connected load remains ON after the last detected movement. Turn the potentiometer:
- Towards "+" for a longer time delay.
- Towards "-" for a shorter time delay.
Adjust the time delay according to the application's requirements. Typical settings range from a few seconds to several minutes.
5.3. Remote Control (Optional):
The detection sensitivity and other advanced parameters can be adjusted using the Dinuy EM MAN DM0 remote control (sold separately). Refer to the EM MAN DM0 manual for specific instructions on its use.
6. Maintenance
The Dinuy DM.Tec.002 motion detector requires minimal maintenance.
- Cleaning: Gently wipe the sensor lens with a soft, dry cloth to remove dust or smudges. Do not use abrasive cleaners or solvents.
- Inspection: Periodically check for any visible damage to the sensor or wiring.
- The device contains no user-serviceable parts.
7. Troubleshooting
If the motion detector is not functioning as expected, try the following troubleshooting steps:
- No Detection/Load Not Activating:
- Check if power is supplied to the device.
- Verify wiring connections are correct and secure.
- Adjust the LUX setting to a lower value (moon symbol) to ensure activation in current light conditions.
- Ensure there are no obstructions blocking the sensor's view.
- Test the detection range by walking through the coverage area.
- Load Always ON/Not Turning OFF:
- Check if there is continuous movement within the detection area.
- Adjust the TIME setting to a shorter duration.
- Ensure the LUX setting is not too low, causing it to activate even in sufficient ambient light.
- Verify that the load connected does not exceed the maximum capacity (see Specifications).
- False Detections:
- Relocate the sensor away from heat sources, air vents, or areas with strong drafts.
- Adjust the detection sensitivity (if using EM MAN DM0 remote) to a lower level.
If problems persist after performing these checks, contact a qualified electrician or Dinuy customer support.
8. Specifications
| Parameter | Value |
|---|---|
| Model Number | DM.Tec.002 |
| Brand | Dinuy |
| Power Supply | 230V~ 50Hz (Wired Electric) |
| Detection Technology | PIR (Passive Infrared) |
| Detection Angle | 360° |
| Max. Coverage Diameter | 7 meters (at 2.5m installation height) |
| Output Channels | 2 |
| Max. Resistive Load | 3000W |
| Max. Inductive Load | 3600W |
| Max. Fluorescent/LED Load | 1300W (130µF) |
| Relay Rating | 16A, 250V~ |
| Installation Type | Recessed Ceiling Mount |
| Color | White |
| Dimensions (Control Unit) | Approx. 14 x 9.4 x 7.4 cm (Package dimensions) |
| Weight | Approx. 149.69 grams (Package weight) |
| International Article Code | 08422447008241 |
9. Warranty and Support
9.1. Warranty Information:
Specific warranty terms for the Dinuy DM.Tec.002 are typically provided by the seller at the time of purchase or by the manufacturer. Please refer to your purchase documentation or contact your retailer for detailed warranty information.
9.2. Customer Support:
For technical assistance, troubleshooting beyond this manual, or inquiries regarding spare parts, please contact your product retailer or the manufacturer directly.
Manufacturer: Dinuy S.A.
Website: www.dinuy.com





