Vernier Colorimeter

This 4-wavelength Colorimeter measures the amount of light transmitted through a sample at a user-selectable wavelength in order to determine the concentration of a solution. Features such as automatic sensor identification and one-step calibration make this sensor easy to use. Specifications Range: 0 to 3 (absorbance) Useful Range: 0.05 to 1.0 (absorbance) 90% to 10% transmittance (%T) Wavelengths: 430 nm, 470 nm, 565 nm, 635 nm Typical Resolution: 0.035 %T Supply voltage: 5VDC +/- 25 mV Supply current: 40 mA (typical) Power up time: 700 ms (maximum) Output voltage range: 0 – 4 V Transfer function: Vout = 0.035 x (%T) + 0