Overview
The QIWEI SD-2 Portable Colorimeter is a measuring instrument that uses platinum-cobalt chroma standard solution for calibration and uses "degree" as the unit of colorimeter. It can be widely used in the determination of chroma in power plants, pure water plants, water plants, domestic sewage treatment plants, beverage plants, environmental protection departments, industrial water, wine industries and other departments to help meet the specified water quality standards.
Features
1. Using platinum-cobalt standard Colorimetry, accurate and reliable measurement.
2. Measurement range is 0~ 500 degrees.
3. AC and DC dual-purpose design, can be powered by dry batteries or Power Adapters, with strong portability.
4. Equipped with an automatic shutdown function, it helps to save energy.
5. High indication accuracy, up to 0.1 degrees.
Principle
The instrument works on the Platinum-Cobalt standard Colorimetry. Measurements are made in "degrees" to determine the chromatic value of the water sample by visually or electro-colorimetric comparison of the Color of the water sample to be measured with a known concentration of Platinum-Cobalt standard chroma solution.
Applications
Power plants, pure water plants, water plants, domestic sewage treatment plants, beverage plants, environmental protection departments, industrial water, wine industries
Standards
Platinum-Cobalt Colorimetry
Steps
1. Ensure that the instrument is placed horizontally on a stable test bench, avoiding direct Illuminants.
2. Select DC dry battery or AC Power Adapter to power the instrument according to demand.
3. Calibrate the instrument with platinum-cobalt chroma standard solution according to the instructions for use of the instrument.
4. Take the water sample to be tested and make the measurement according to the operating procedures.
5. Read and record the chromatic value displayed by the instrument.
6. After use, the instrument can be automatically shut down.
Notice
• Ambient Temperature should be between 5 and 35 ℃, storage temperature between -20 and 55 ℃.
• Environmental humidity should not exceed 80% RH.
When using AC power, the voltage should be 220V 50Hz.
• The instrument should be placed on a stable table, effectively avoid direct Illuminant, and there is no strong magnetic interference and strong vibration source around.
• There should be no obvious dust and corrosion gas in the air around the instrument.
• The intrinsic error of the instrument is +/- 5% F.S., please pay attention when using it.
• Instrument zero drift is +/- 1 degrees, Repeatability ≤ 3%.
