product

One Touch Astronomical Time Switch

It is a microcontroller-based astronomical time switch. It calculates sunset and sunrise times as per the programmed algorithm. Additionally, an ambient light sensor has also been provided, which uses Artificial Intelligence to ensure the optimum level of ambient light while switching ON/OFF the lighting load. Energy saving is achieved by regulating the ON/OFF timings of lights.

Applications:

  • Everywhere, where saving of electrical energy is needed by regulating the switch OFF and ON time of Lights.


Example: Street Lights, Park Lights, Area Lights, Sign boards, Hording lights.

Technical Specifications

Model: A10M
Voltage: 240V +/- 5%
Frequency: 50Hz
Technology: Microcontroller-Based
Power Supply Input Filter: Provided
ON-OFF Status LED: Provided
Time Clock with power backup: battery backup. Battery lasts for 4 to 5 years.
Settings: Settings can be done through any Wi-Fi compatible device
Mode of Operation: It has five modes of operation, which are user selectable.
Sunset- Sunrise Time: Calculated as per values of longitude and latitude. Longitude and latitude are user-settable.
Accuracy: 1 minute

Offset time from Sunset-Sunrise Time: User settable, 0 to 60 minutes
Light Sensor: Provided
Light Sensitivity Setting: Yes, Provided.
Maintenance By-pass Switch: Provided
Output: Potential free contacts, 10A
Mounting: Surface Mounted
Enclosure: IP 20, ABS
Temperature: 40 deg C
Humidity: 90%
Light sensor: Waterproof LDR 

Other Features: By pressing a switch for five seconds provided in the time switch, it gets access to a web page, where all the required settings like latitude, longitude, and offset time in minutes, mode of operation are to be filled. Clicking the save button on the web page sends entire settings to time switch through Wi-Fi. The current time is automatically set in the real time clock chip. The light sensor facilitates the presence of sufficient ambient light at the time of switching ON / OFF.

Mode 0:

Switches ON and OFF as per sunset and sunrise time respectively. Offset time is added in sunset time and subtracted from sunrise time. In this mode light sensor does not come into picture.

Mode 1:

This mode works as per Mode 0 but in addition to sunset, sunrise and offset time, light sensor also comes into picture, which senses the ambient light and using Artificial Intelligence it allows switching ON/OFF  of electrical lighting load. The setting can be manually adjusted.

Mode 2:

In this mode, the time switch works only as per the settings of the light sensor, i.e., if the light sensor value exceeds the threshold hold value, it switches ON and vice versa. The sunset and sunrise time do not come into picture.

Mode 3:

Switches ON as per Mode 0 but switches OFF as per set time

Mode 4:

Switches ON as per Mode 1 but switches OFF as per set time.