Twilight / Dusk Sensor – ANDWOS1

ANDOS Twilight/Dusk Sensor is designed for measuring light intensity or darkness, with measurement ranges from 0 to 100 kLux (daylight) or from 0 to 1 kLux (dimming).

There are two versions available of the ANDWOS Dusk Sensor:

• ANDWOS1 – with a single integrated dusk sensor
• ANDWOS3 – with three integrated dusk sensors positioned at different angles to detect light from various directions, all housed in a compact enclosure.

In special cases, different measurement ranges are also available depending on the customer’s needs or specifications.

Outputs:

The Twilight sensor is available with the following output options:

• 0 – 10 V
• 4 – 20 mA

Measurement Ranges:

The light sensor comes with a fixed measurement range or can be adjusted between:

• 0-100 kLux
• 0-1 kLux

Product number: ANDWT500

Dusk sensors are widely used in applications where precise monitoring and control of light intensity are required, especially to activate lighting systems at dusk or when light levels drop below a certain threshold. Here are several key examples of how dusk sensors are applied in real-world scenarios:

Street Lighting Systems:

• Application: Dusk sensors are commonly used in street lighting systems to automatically turn on streetlights at dusk and turn them off at dawn.
• Why Dusk Sensors: Streetlights need to be activated at sunset and deactivated at sunrise. Dusk sensors ensure that lights turn on only when the ambient light levels fall below a certain threshold (typically around 10-30 lux), which helps in energy savings by preventing unnecessary lighting during the day.
• Control: The sensor ensures that streetlights are activated only when required, saving electricity by reducing operational hours.

Outdoor Security Lighting:

• Application: Dusk sensors are used in security lighting systems to automatically activate floodlights or motion-sensor lights around buildings, parking lots, and private properties.
• Why Dusk Sensors: Security lights need to turn on as soon as it gets dark to ensure that areas are well-lit for safety and visibility. The sensor ensures that the lights don’t stay on during the day when they are not needed.
• Control: The sensor helps control lighting intensity by activating lights only when ambient light falls below a preset lux level, preventing wastage and optimizing security.

3. Garden and Landscape Lighting:

• Application: Dusk sensors are widely used in garden lighting systems to automate the turning on and off of lights in landscapes, gardens, or decorative outdoor spaces.
• Why Dusk Sensors: Dusk sensors automatically activate garden lights at dusk, ensuring that the landscape remains illuminated during evening hours, but not during the day. This ensures that energy consumption is minimized, and the lighting serves aesthetic purposes without being wasteful.
• Control: The sensor allows precise control over the lighting, turning on lights at sunset and turning them off at sunrise based on ambient light levels.

Commercial Building Exterior Lighting:

• Application: Dusk sensors are used in commercial buildings to control the lighting of exterior facades, signage, or parking lots.
• Why Dusk Sensors: In commercial settings, exterior lighting needs to be controlled based on natural daylight levels. Dusk sensors ensure that lights on the building’s exterior or in parking areas are activated at the correct time—after the sun sets and before it becomes completely dark.
• Control: The sensor ensures that lights are only activated when the light level falls below a specified threshold, minimizing energy consumption while maintaining the building’s visibility at night.

Solar-Powered Lighting Systems:

• Application: Dusk sensors are used in solar-powered outdoor lighting systems (e.g., solar street lights, garden lights).
• Why Dusk Sensors: Solar lights rely on natural sunlight to charge their batteries during the day, and dusk sensors ensure that these lights automatically turn on when the ambient light falls below a certain lux level, typically around 10 lux. This automation is essential to maximize the efficiency of solar energy while ensuring that lights are operational as needed.
• Control: Dusk sensors enable solar lights to work autonomously, controlling when they should turn on based on ambient light levels, without the need for manual intervention.

Parking Lot Lighting:

• Application: Dusk sensors are used to automate lighting in parking lots and garages.
• Why Dusk Sensors: Parking lots need to be illuminated during the evening and nighttime for safety and visibility. Dusk sensors detect when natural light levels fall below the desired threshold (e.g., 10 lux) and activate the lights automatically.
• Control: The sensor ensures that parking lot lights are on only when needed, helping to reduce energy waste and improve safety during the night.

Billboards and Advertising Displays:

• Application: Dusk sensors are used in controlling the lighting for digital billboards and advertising displays.
• Why Dusk Sensors: Advertising lights need to be adjusted based on ambient light conditions to ensure maximum visibility without wasting energy. Dusk sensors detect when natural light diminishes and adjust the brightness of the display accordingly, ensuring the ad is clearly visible at night and conserving power during the day.
• Control: Dusk sensors automatically adjust or activate lighting for billboards, reducing the need for manual control and ensuring optimal visibility.

Industrial Site Lighting:

• Application: In industrial environments like factories or warehouses, dusk sensors can be used to control lighting in outdoor areas such as loading docks, entrances, or security zones.
• Why Dusk Sensors: For safety and visibility, outdoor lighting needs to be triggered when natural light levels fall below a certain threshold. Dusk sensors automate the process, ensuring the lighting system operates when needed but turns off during daylight hours.
• Control: The sensor allows for precise control over the outdoor lighting, ensuring it only operates during the night and saving energy during the day.

Public Parks and Recreational Areas:

• Application: Dusk sensors are used in public parks, sports fields, and recreational areas to manage lighting for safety and convenience.
• Why Dusk Sensors: These areas require lighting in the evening or night but need to avoid wasting energy during the day. Dusk sensors ensure the lights are activated automatically at dusk, providing safety and visibility for park visitors, runners, or athletes without human intervention.
• Control: The sensor detects when the ambient light falls below a preset lux threshold (e.g., 10-30 lux) and turns on the park lighting to improve safety.

Automatic Garden Irrigation Systems with Lighting:

• Application: Dusk sensors can be integrated into garden irrigation systems that are paired with lighting features.
• Why Dusk Sensors: Some gardens use lights and irrigation systems that activate together in the evening. Dusk sensors help automate this process, ensuring that lights and sprinklers are only triggered when the sun goes down, saving water and energy.
• Control: The sensor ensures that the lighting and irrigation systems are synchronized to turn on at the right time, making the system more efficient.