Astronomical Time Switch

Almanac based two relay output astronomical timer:

Highly engaged in providing a quality range of Astronomical Digital Timer for Commercial Purpose. The digital timer, we offering to our clients are of good quality materials and are highly demanded in the market. It gives the accurate time with very low consumption of electricity.

Features:

• Allows energy saving via programming of time and geographical area of installation
• Daily automatic regulation of sunrise and sunset time
• Summer, winter, rainy time automatic update
• LED Display to view time, day, date by program
• Suitable to program the coordinates of the city and has a easy usage interface
• Internal batteries to enable the usage of programming without energy
• Sunset and sunrise times can be viewed on screen
• Ideal for outdoor and building lights ,street lighting application.

Applications:

• Street Lights
• Housing Society
• Neon Sign Boards
• Factory Lights
• Commercial Complex
• Water Coolers
• Air Conditioners
• Fountains & Gardens
• Factory
• Stadium

Specification :-

• Rated Supply voltage: Single Phase 230 v input +/- 5%
• Rated Frequency: 50Hz + / - 5%
• Battery Back - up: In - built - chargeable battery with over 10 year life

Output channels :-

The timer is available with two channel output

Channel A: To switch on/ off street lights as per the Almanac bases yearly start.

Channel B: To switch on/off in conjunction with channel A: as also to switch off/on at. some preset times in between as required.

Offset time setting :- +/- 60 minutes in 1- minute steps.

Output control:

• 1 nos. rated for 7A at 250V AC.
• 2 nos. rated for 7A at 250V AC.

Time clock :-

Inbuilt Quartz crystal controlled Real time Clock with non-volatile RAM random access memory.

Time range :-

• ON Time : within ALMANAC Time.
• Duration : As per Almanac.(As per table)
• Switching Accuracy : +/- 1sec. Max
• Recovery Time : 100m sec. min.
• Ambient temp : 55 C Max .
• Humidity : Max 95%
• Password : The timer is provided with password Protection to avoid any mishandling.
• Electrical connections : Screw type terminals. & Wall mount cabinet

External controls :-

An 8 - segment LED display panel with membrane key pad

As follows :

• An increment key to increase the selected parameters.
• A decrement key to decrease the selected parameter.
• A set key
• Parameter acceptance key.

Front panel:-

a) Manual override facility without interruption of power supply to the timer.

An 8- segment LED for continuous display of the current real time of the RTC in Hrs: min on 24 hr.

Additional protections :-

• EPROM based programming
• Dust- proof rugged & strong cabinet to prevent dust penetration.
• RFI/EMI protection - provided.
• Isolation between input & output to avoid erratic switching.
• Special body design to prevent external tempering.

Dimensions Maximum Height x length x width :- 150mm x 250mm x 200mm.