Product Overview
The Karya Street Light Timer is an intelligent, micro-controlled 24-hour time switch engineered to automate outdoor lighting networks. Featuring an advanced Dual-Slot Scheduling System, this device allows operators to program two separate operational windows within a 24-hour cycle. It is the perfect solution for municipal street lights, commercial signboards, campus illumination, and perimeter security lights looking to eliminate human error and dramatically reduce electricity wastage.
Understanding the 24-Hour Dual-Slot System
Standard timers only allow one ON and OFF setting per day. The Karya Timer provides two independent operational slots, giving you the flexibility to keep lights on during critical high-traffic hours, turn them off at midnight to save power, and turn them back on in the early morning before sunrise.
    • ON 1 / OFF 1 (Slot 1): Governs your primary night-time scheduling.
    • ON 2 / OFF 2 (Slot 2): Governs your secondary morning-time scheduling.

💡 Example Setup for Maximum Energy Savings:
    • ON 1 (06:30 PM): Lights turn ON automatically at dusk.
    • OFF 1 (11:30 PM): Lights turn OFF late at night when the streets are empty to save power.
    • ON 2 (05:00 AM): Lights turn back ON for early morning commuters and safety.
    • OFF 2 (06:30 AM): Lights turn OFF automatically at dawn as daylight returns.

Technical Features & Advantages
  • Dual Time Windows: Program separate evening and morning operational schedules seamlessly.
  • Heavy Duty Configuration: Designed to interact directly with heavy electrical loads and industrial lighting contactors.
  • Inbuilt Power Backup: Includes a time-retention memory backup so your pre-programmed schedules (ON1/OFF1/ON2/OFF2) remain safely stored even during sudden power outages.
  • High-Contrast Digital Display: Clear screen interface for straightforward, exact setting configurations down to the minute.
  • Manual Override Switch: Easily toggle between Auto Timer Mode and Manual Mode (Always ON / Always OFF) for maintenance routines.
  • ⚙️ Quick Programming Steps
    Follow these exact steps to configure your dual-slot schedule using the SET, HR, and MIN buttons:
    1. Programming Slot 1 (Evening Schedule)
    • Step 1: Press the SET button once. The display will show ON1.
    • Step 2: Press the SET button a second time. The previously saved time for ON1 will start blinking.
    • Step 3: Use the HR (Hour) and MIN (Minute) buttons to adjust the activation time. The values will rise with each press and automatically reload back to 0 once they reach their maximum limit (23 for hours / 59 for minutes).
    • Step 4: Press the SET button again to save. The display will transition to OFF1. Press SET once more to make the old time blink, and use the HR and MIN buttons to configure your first shutdown time.
    2. Programming Slot 2 (Morning Schedule)
    • Step 5: Press the SET button to advance to ON2. Press SET again to make the old time blink, then use the HR and MIN buttons to set your morning activation time.
    • Step 6: Press the SET button to advance to OFF2. Press SET again to make the old time blink, then use the HR and MIN buttons to set your final morning shutdown time.
    • Step 7: Press SET one final time to save all parameters and return the device to standard Auto Mode.
    💡 Programming Logic Tips for Users
    • Cyclic Resetting (Reload to 0): If you overshoot your target time while pressing the buttons, do not panic. Simply keep pressing the HR or MIN button; the counter will cycle past its peak and reload back to 00 so you can find your number again.
    • Skipping a Slot: If you only require one lighting window per day, configure ON2 and OFF2 to the exact same time (e.g., 00:00), which effectively deactivates the secondary slot.
     
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