§3. Connecting the System

The Light Counter LC2 system is extremely flexible, and it can be configured in a number of different ways, for example:

  • Only Light: the light integrator and a single UV or visible light sensor. This is sufficient for accurate and consistent printing
  • Light and Temperature: adds a temperature sensor to the ‘Only Light’ configuration. This allows the photographer to monitor the temperature inside their light box
  • Light, Temperature and Data: adds a data logger and sensor hub to the ‘Light and Temperature’ configuration. This allows the photographer to fully understand how their light source acts over time

The power controller can be added to all of the above configurations. This gives the photographer maximum convenience and control over printing.

Positioning the Sensors

The light sensor should be placed close to the printing area, with its filter pointing directly at the light. A variety of different positions can meet these criteria, and some experimentation may be beneficial.

The temperature sensor can be positioned anywhere in the light box.

The total length of USB cables between the light integrator and the sensor(s) should not exceed 5-6 meters. Environments with significant electromagnetic interference (EMI) may require shorter cables.

System Cables

The system uses standard off-the-shelf cables, which makes them easy and cheap to replace if they become damaged.

  • The light integrator is connected to power using a male USB-B cable 
  • The sensors and data logger are attached to the light integrator by a male USB-A to male USB-A cable
  • The cable connecting the power controller to the light integrator has a 2.5mm male jack plug at each end. Either a mono or stereo cable will work
USB-B (left) and USB-A (right) Plugs

The light integrator can be powered from any standard USB port. It is safe to connect the USB-B cable to a computer for power, but an ordinary, off-the-shelf USB power supply may be more convenient.

Connect the light integrator to its USB power supply once all cables are in place. The display should light up, search for attached sensors and a data logger, then show the default exposure value of 300. It is now ready to use.

Caution: Do not connect a computer to any of the system’s USB-A connectors on the light integrator, sensors or data logger. Doing this may damage both the computer and the device.

Electrical Safety

All electrical equipment should be placed in a dry area where it will not get wet. Water, and other liquids, will damage the devices, and may create an electric shock hazard. It is the installer’s responsibility to ensure that all applicable electrical safety standards are adhered to.


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