Optics LEDs, interference filters (IF) and photo sensor in transparent sample chamber. Depending on the version, up to 3 different interference filters are used. Wavelength specifications of interference filters: 430 nm ? ? = 5 nm 530 nm ? ? = 5 nm 560 nm ? ? = 5 nm 580 nm ? ? = 5 nm 610 nm ? ? = 6 nm 660 nm ? ? = 5 nm Wavelength Accuracy ? 1 nm Photometric Accuracy 3% FS (T = 20?C - 25?C) Power Supply 4 micro batteries (AAA), capacity approx. 17 hours or 5000 tests Auto - OFF automatic switch-off Display backlit LCD (on keypress) Storage internal ring memory for 16 data sets Interfaces infrared interface for test data transfer Additional feature real time clock and date Calibration factory calibration and user calibration. Reset to factory calibration possible Dimensions 155 x 75 x 35 mm (L x W x H) Weight basic unit approx. 260 g Environmental conditions Temperature: 5 - 40 ?C rel. humidity: 30 -90% (non condensing) Conformity CE; tested with standard solutions |