1. Introduction
The Kanlux JVT3-16D is a versatile programmable digital timer designed for various electrical control applications. This device allows for precise scheduling of electrical circuits, offering convenience and energy efficiency. It supports up to 18 distinct programs for daily or weekly operation.
Key Features:
- Programmable digital timer.
- Minimum time setting: 1 minute.
- Display precision: 1 second.
- Accuracy: +/- 2 seconds per 24 hours.
- Up to 18 programmable events (ON/OFF cycles).
- Daily or weekly programming options.
- Designed for distributor installation (DIN rail compatible).
- Occupies 2 division units on a DIN rail.
2. Safety Instructions
Please read these safety instructions carefully before installation and operation. Failure to follow these instructions may result in electric shock, fire, or damage to the device.
- Installation must be performed by a qualified electrician in accordance with all local and national electrical codes.
- Ensure the main power supply is disconnected before installing, wiring, or servicing the timer.
- Do not exceed the maximum load rating of the timer.
- Do not expose the device to moisture, water, or extreme temperatures.
- This device is intended for indoor use only.
- Keep out of reach of children.
3. Product Overview
The Kanlux JVT3-16D digital timer features a compact design suitable for DIN rail mounting. It includes a digital display for time and program settings, along with control buttons for programming and manual override.

Figure 1: Front view of the Kanlux JVT3-16D Digital Timer. This image shows the compact white housing, the digital display panel, and the Kanlux JVT3-16D branding. Terminal connections are visible at the top and bottom for electrical wiring.
Components:
- Digital Display: Shows current time, day, and programming parameters.
- Control Buttons: Used for setting time, programming events, and manual control.
- Terminals: Input and output connections for electrical wiring.
- DIN Rail Clip: For secure mounting on a standard DIN rail.
4. Setup and Installation
The JVT3-16D timer is designed for installation within an electrical distribution board, typically mounted on a DIN rail.
Installation Steps:
- Power Disconnection: Ensure the main power supply to the distribution board is completely switched off before commencing installation. Verify with a voltage tester.
- Mounting: Clip the timer onto a standard 35mm DIN rail. The device occupies two standard division units.
- Wiring: Connect the input power supply and the load to be controlled to the appropriate terminals as indicated on the device. Refer to the wiring diagram printed on the timer or in the full product documentation. Ensure all connections are secure.
- Power Restoration: Once installation and wiring are complete and verified, restore power to the distribution board.
- Initial Power-Up: Upon first power-up, the display may be blank or show default settings. The internal battery will maintain settings during power outages once charged.
5. Operating Instructions
This section outlines how to set the current time and program ON/OFF events for the Kanlux JVT3-16D timer. Specific button names are generalized as they are not provided in the product data.
5.1. Setting Current Time and Day
- Press the "CLOCK" button (or equivalent time-setting button). The hour display will start flashing.
- Use the "HOUR" and "MINUTE" buttons to adjust the current hour and minute.
- Press the "DAY" button to select the current day of the week.
- Press "CLOCK" again to confirm and exit time setting mode.
5.2. Programming ON/OFF Events
The timer supports up to 18 ON/OFF programs. Each program consists of an ON time and an OFF time.
- Press the "PROG" button (or equivalent program button). The display will show "1 ON" (for program 1 ON time).
- Use the "HOUR" and "MINUTE" buttons to set the desired ON time for program 1.
- Press the "DAY" button to select the days of the week for this program. Options typically include: every day, weekdays, weekends, specific days (e.g., Mon-Wed-Fri), or individual days.
- Press "PROG" again. The display will show "1 OFF" (for program 1 OFF time).
- Set the desired OFF time and days using the "HOUR", "MINUTE", and "DAY" buttons.
- Repeat steps 1-5 for additional programs (2 ON/OFF, 3 ON/OFF, up to 18 ON/OFF).
- After setting all desired programs, press the "CLOCK" button to exit programming mode and return to normal operation.
5.3. Manual Override
The timer usually includes a manual override function to temporarily switch the output ON or OFF, independent of the programmed schedule.
- Press the "MANUAL" or "ON/AUTO/OFF" button (or equivalent) to cycle through modes: ON, AUTO, OFF.
- ON: Output is continuously ON.
- OFF: Output is continuously OFF.
- AUTO: The timer operates according to the programmed schedule.
5.4. Resetting the Timer
To clear all settings and return the timer to its factory default state, locate the small reset button (often recessed) and press it using a pointed object (e.g., a pen tip). This will erase all programmed events and reset the current time.
6. Maintenance
The Kanlux JVT3-16D digital timer requires minimal maintenance.
- Cleaning: Wipe the exterior of the timer with a soft, dry cloth. Do not use abrasive cleaners, solvents, or allow moisture to enter the device.
- Battery: The timer contains an internal rechargeable battery to maintain settings during power outages. This battery is typically maintenance-free and has a long lifespan. If the display is consistently blank after a power outage, the battery may need replacement by a qualified technician.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Timer display is blank. | No power supply. Internal battery discharged. | Check power connections. Allow time for internal battery to charge (typically 24 hours after initial power-up). If problem persists, consult a technician. |
| Programs are not executing. | Timer is in manual ON/OFF mode. Incorrect time/day setting. Programs not correctly set. | Ensure the timer is in "AUTO" mode. Verify current time and day settings. Re-check programmed ON/OFF times and days. |
| Load does not switch ON/OFF. | Incorrect wiring. Faulty load. Timer malfunction. | Verify wiring connections (ensure power is off). Test the load directly. If wiring and load are correct, the timer may be faulty; seek professional assistance. |
| Time drifts significantly. | Normal accuracy variation. | The timer has an accuracy of +/- 2 seconds per 24 hours. Minor adjustments may be needed periodically. |
8. Specifications
| Brand: | Kanlux |
| Model Number: | JVT3-16D (Manufacturer Reference: 18720) |
| Number of Programs: | 18 |
| Minimum Time Setting: | 1 minute |
| Display Precision: | 1 second |
| Accuracy: | +/- 2 seconds / 24 hours |
| Installation Type: | DIN Rail (2 division units) |
| ASIN: | B00HN9ALDW |
9. Warranty and Support
Warranty information for the Kanlux JVT3-16D Digital Timer is typically provided with the product at the time of purchase. Please refer to the documentation included in the product packaging for specific warranty terms and conditions.
For technical support, service, or inquiries regarding spare parts, please contact your retailer or visit the official Kanlux website. Information regarding spare parts availability is currently unavailable through general product data.





