Konica Minolta CL-200 Illuminance Colorimeter

An affordable, portable & simple-to-use tristimulus colorimeter

The CL-200 from Konica Minolta is an affordable, portable, tristimulus colorimeter for measuring the chromaticity and illuminance of light sources in lux (or foot candles, where 1 fcd = 1 lumen per square foot = 10.764 lux). Don't confuse affordability with low specification, though. The CL-200 is equipped with advanced features which promote measurement accuracy and ease of use. The spectral response of the CL-200's three silicon photodiodes is matched closely to the CIE tristimulus observer functions using special filters, while a cosine diffuser ensures that the effective illuminance from off-axis sources is scaled correctly. The CL-200 provides measurements over 4 decades, from 0.1 to 99,900 lux (colour readings require 5 lux or higher). In nature, illuminance typically ranges from about 0.01 lux on a dark night of a new moon to about 100,000 lux on a hot summer day. Workplace illumination is normally around 1000 lux.

Flexible & Convenient

The CL-200 conveniently allows you to separate the sensor head from the main body of the meter. This allows you to hold the sensor towards the light source whilst standing to one side and reading the light level. To use the CL-200  in this way, you will need to order a couple of optional accessories (T-A20 receptor unit for the main body and the T-A21 receptor unit for the sensor head with 1m LAN cable).

Many Advanced Features

Basic operation of the CL-200 gives you readings of the illuminance in lux (or you can select foot candles if you prefer), as well as the chromacity as CIE xy or u'v' coordinates. The CL-200 also reports the tristimulus values XYZ and correlated colour temperature and colour differences. Advanced operation allows you to hold a reference reading and enter colour correction factors specific to the type of light source under test.

The CL-200 features as standard an RS232 serial interface (software is optional). Zero adjustment is automatic, while you can either leave the meter to set its own range automatically or choose your preferred range manually. The LCD display features a backlight that turns on automatically under low ambient illumination. The CL-200 operates as standard from AA-size batteries, while an AC mains adaptor is available as an accessory.

Specifications & Ordering Information