LightMeasure UV Exposure Meters
We offer ultra-violet (UV) exposure dose meters (also called 'integrators') designed specifically for artists who work with UV sensitive media such as:
- Platinum or Palladium printing
- Van Dyke browns
- Carbon prints
- Solarplate™, ImagOn™ or similar photopolymer and photogravure processes
- and similar processes which use UV light to expose an image
The meters are designed to enable the artist to get perfect exposures every time without the need to make test strips for every exposure, even when using light sources (such as the sun) where the UV levels might be variable.
You use the meter to establish a 'target UV dose' for your combination of light source and medium, which you only need to do one time. Then use this 'target dose' for future prints - you don't need to make any more test strips, simply use the meter to monitor the UV during the exposure step and stop when you reach the target dose. See here for more details and FAQs.
We offer 4 versions of meters suited to different situations: A short- and long-UV-wavelength version, with either an internal or an external sensor. Please click on the 'details here' links to find full specifications for each model along with a graph showing the spectral sensitivity of the sensor overlapped with the spectrum of several common light sources used by artists.
All versions have a similar control unit with a large, easy-to-read display showing the exposure data, a UV sensor, a start-stop button and an on-off switch. The main differences between the options are the sensitivity range of the sensor and whether the sensor is mounted internally or externally.
The meters are extremely simple to use: Repeated pressing of the green Start/Stop button will toggle the meter between its three modes:
- Reset: All readings are reset to zero;
- Measure: The display now shows the current UV intensity, the time in seconds and the accumulated UV dose since the measurement started.
- Hold: The measurement is stopped and the measurements are frozen on the display to allow you to record the information if you choose.
- A further SHORT press will return you to step 2 to allow you to continue a measurement (useful for checking progress or while making test-strips), or a LONG press (3 seconds) will take you back to step 1 and reset the meter.
The exposure dose is the reading that will be of most frequent use to the artist. It is the total accumulated UV dose received by your print medium since you pressed the start button. Monitoring the dose during the exposure process and stopping once you reach the 'target dose' ensures your prints always receive the same exposure regardless of the intensity of the illumination.
The intensity reading has many uses: evaluating the intensity of ambient UV levels in the studio, measuring the relative UV transmission of materials, or comparing the UV intensity of different light sources.
The time reading is the number of seconds since you started the measurement.
*** Please read these FAQs for information about measuring different light sources or using different media ***