The Multichannel Open Colorimeter is a photometer for measuring light absorbance through samples in a standard 10mm pathlength cuvette. The device uses the Adafruit AS7341 10-Channel Light Sensor. The AS7341 light sensor is an multichannel light sensor with 8 channels covering the visible light spectrum from 415-680 nm as well as a near-IR channel. channel 1 (Violet): λp = 415nm, FWHM = 26nm channel 2 (Violet): λp = 445nm, FWHM = 30nm channel 3 (Blue): λp = 480nm, FWHM = 36nm channel 4 (Green): λp = 515nm, FWHM = 39nm channel 5 (Green): λp = 555nm, FWHM = 39nm channel 6 (Orange): λp = 590nm, FWHM = 40nm channel 7 (Red): λp = 630nm, FWHM = 50nm channel 8 (Red): λp = 680nm, FWHM = 52nm The Multichannel Open Colorimeter uses a PyBadge pre-programmed with open source CircuitPython firmware. The cuvette holder and enclosure are made from 3D-printed black plastic. Links to the hardware designs and open source firmware are in the Product Guide. The Multichannel Open Colorimeter ships pre-programmed & ready-to-use. No assembly, soldering or programming is required. Product Features: Multi-channel photometer with the AS7341 light sensor Current-controlled white light LED board as light source Includes a USB cable for battery-charging or power Includes a pack of 6 cuvettes: 3 macro (2.5-4.5 mL) and 3 semi-macro (1.5-3.0 mL) Includes a light-blocking cap to place over the cuvette during measurements Documentation: Visit the Product Guide for full details. Open Colorimeter is Open Hardware certified. The Multichannel Open Colorimeter test and measurement equipment is for research use only (see Terms and Conditions).
