Photocontrollers are the silent guardians of efficient lighting. These devices seamlessly manage illumination based on the surrounding light levels. They find application in a variety of settings, from automatically turning on streetlights at dusk to regulating building lighting based on natural daylight.

How Can I Adjust The Lux Value Setting of My Photo Controller?

Introduce

Photocontrollers are the silent guardians of efficient lighting. These devices seamlessly manage illumination based on the surrounding light levels. They find application in a variety of settings, from automatically turning on streetlights at dusk to regulating building lighting based on natural daylight. 

A key factor in this functionality is the lux value setting. Lux, measured in lux units, represents the intensity of visible light. By adjusting the lux value on your photocontroller, you determine the specific light level at which your connected fixtures turn on and off.

This article will guide you through understanding lux value, its role in photocontrollers, and the steps involved in making adjustments for optimal performance.

Understanding the­ Importance of Lux Measureme­nts

Lux (lx) is the unit used to measure­ how much visible light reaches a spe­cific area. It tells us the inte­nsity of the light that our eyes can pe­rceive. A brightly lit room will have a highe­r lux value compared to a dimly lit hallway.

The Role­ of Lux in Photocontrollers

Photocontrollers use lux me­asurements to decide­ when to turn connected lights on and off. The­y detects the ambie­nt light levels, measure­d in lux. When the lux leve­l drops below a preset thre­shold, usually at dusk, the photo controller automatically switches the­ lights on. And when the lux leve­l rises above, typically at dawn, the lights are turned off again.

Why Adjusting Lux Value Matters

Fine-tuning the lux value setting allows you to optimise your lighting system for various factors. Here’s why adjusting lux value matters.

Energy Efficiency: Setting the correct lux value ensures lights operate only when necessary, reducing energy consumption and costs.

Light Pollution Control: By adjusting for lower lux thresholds at night, you can minimise unnecessary light pollution impacting the environment and nighttime visibility.

Application-Specific Control: Different environments have different lighting needs. Adjusting lux value allows you to tailor lighting activation to specific areas, like brighter lights in parking lots compared to walkways.

Step-by-Step Guide to Adjusting Lux Value

While this guide can be used for general photocontroller principles, our specific focus is the JL-207. This is because they stand out as a reliable option. This microprocessor-based controller offers versatility with its compatibility for various voltage ranges and sensor types. 

It boasts features like surge protection and user-friendly time delays, making it a robust choice for automatic lighting control. Below is a step-by-step guide to adjust the lux value.

Accessing Lux Value Setting Interface

The method for accessing the lux value setting interface will differ between photocontroller models. Depending on the specific device, it might involve physical dials, buttons, or software. However, JL-207 usually comes with buttons.

Look for markings or labels near the controls that might indicate “lux” or “light level.” The user manual will be crucial for deciphering these markings and navigating the adjustment process.

Understanding Lux Value Adjustment Options

Once you’ve accessed the lux value setting interface on your photo controller, you’ll likely encounter options for adjusting the turn-on and turn-off thresholds. These thresholds are typically represented in lux units.  For instance, you might see options for setting “ON Level” and “OFF Level.”

Suppose you want lights to turn on at dusk or when it’s completely dark, adjust the “ON Level” accordingly. Set a lower “ON Level” for later activation in areas with light pollution restrictions.

Brighter areas like parking lots might require a higher “OFF Level” than walkways.

Tips for Optimal Lux Value Adjustment

  • Start with conservative adjustments. It’s easier to fine-tune later if needed.
  • Consider consulting online lux level charts to determine appropriate lux values for your environment.
  • Test your settings at different times to ensure they function as desired.

Lux value

Environment

0-0.3 lx

Complete dark

0.4-0.2 lx

Less dark

51-100 lx

Dim lighting

201-400 lx

Good

401-600 lx

Bright

600+ lx

Glaring

Troubleshooting Common Issues

Even with careful adjustment, occasional issues can arise with your photo controller’s lux value settings. Here are some common problems and potential solutions.

Lux Value Not Adjusting

In this case, ensure you’ve adjusted the correct lux value settings (e.g., “ON Level” or “OFF Level”). If using physical dials or buttons, confirm they are not stuck or malfunctioning.

Lastly, refer to the photo controller manual for troubleshooting steps specific to your model.

Inaccurate Lux Readings

Sensor obstruction is a common reason for inaccurate Lux readings. Check if the light sensor on the photocontroller is blocked by dirt, debris, or moisture. Clean it gently with a soft cloth. If cleaning doesn’t resolve the issue, the sensor itself might be faulty.

Consider contacting the manufacturer or a qualified technician. Further, ensure the sensor is positioned in a location with representative ambient light levels and away from direct light sources or obstructions.

Other Potential Problems and Solutions

Lights are not turning on/off at expected times; this could be due to a faulty connection, power supply issue, or timer malfunction. Refer to the manual for troubleshooting steps specific to your photocontroller.

If you encounter any unexpected behaviour beyond lux value adjustments, consult the user manual or contact the manufacturer for further assistance.

Maintaining Lux Value Settings for Optimal Performance

Just like any control system, your photo controller’s lux value settings benefit from regular maintenance to ensure continued optimal performance. Here are some best practices to consider.

  • Environmental factors like dust buildup on the light sensor can impact accuracy over time. Schedule periodic inspections to check for obstructions and clean the sensor gently with a soft cloth. It is recommended that you consult the manufacturer’s guidelines for any calibration procedures.

 

  • Seasonal changes in daylight hours or modifications to your surroundings, like adding trees or altering building structures, can influence ambient light levels. Periodically review your lux value settings and make adjustments as needed.

 

  • Integrate lux value checks and adjustments into your lighting system’s regular maintenance routine. This proactive approach will help you identify and address any potential issues early on, ensuring your photocontroller operates efficiently and effectively.

The Bottom Line

JL-207 photocontroller
JL-207C phocontrol

Lux value adjustment plays a crucial role in optimising your photocontroller’s performance. With its user-friendly interface and precise functionality, the JL-207, coupled with LONG-JOIN  technology, emerges as the top choice for effective illumination management in diverse environments.

By understanding lux and its significance, you can fine-tune settings to achieve efficient lighting control, minimise energy consumption, and tailor light activation to specific needs.

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