Overview
HI97769 Surfactant [SDBS] Portable Photometer is an instrument for the measurement of surfactant content in water. Surfactants are a class of compounds that reduce liquid surface tension and promote liquid dispersion or emulsification. They are widely used in detergents, detergents, emulsifying agents and other products. Surfactant content measurement in water is of great significance for evaluating water quality, monitoring pollution and detecting detergent residues. It is widely used in water treatment, environment monitoring, detergent production and detergent residue detection to ensure water quality safety, product mass and environment protection.
Features
1. LED high quality Illuminant system, good performance and high luminous efficiency;
2. High Quality Optical inspection Filter, High Measurement Stability and Less Wavelength Error, Ensure Measurement accuracy and accuracy;
3. Unique reference detector makes the reading between blank (zero) measurement and sample measurement fast and stable;
4. Stable Illuminant Settings to Reduce Errors and Reading Offsets Caused by Defects in Glass Colorimetric Cups;
5. The CAL CheckTM feature allows instrument performance verification and calibrating using NIST traceability standards;
6. Built-in Reaction Timer to ensure consistent results between sample measurements and users;
7. Good Laboratory Practice (GLP) shows the date and time of the last user calibrated;
8. Battery status indicator and automatic shutdown settings;
9. Compliant with IP67 waterproof standard.
Principle
The HI97769 Surfactant [SDBS] Portable Photometer uses an innovative Optical inspection system design, using LED@610nm Illuminant and Silicon Illuminant, Bandwidth 8nm, wavelength accuracy +/- 1.0nm, to quantitatively analyze the surfactant content in water by measuring the absorption of specific wavelengths of light by the sample, ensuring measurement accuracy and repeatability.
Applications
Water treatment, environment monitoring, detergent production, detergent residue detection
Standards
EPA method 425.1, "Water and wastewater inspection standard method" (20th edition, 5540C) modification, IP67 waterproof standard
Steps
1. Preparation of Samples and Reagents;
2. Carry out blank (zero) measurement;
3. Use CAL CheckTM function for performance verification and calibrating;
4. Place the sample in the reaction cup.
5. Start the built-in reaction Timer for measurement;
6. Read and record measurement results;
7. Automatically store the last 50 measurements.
Notice
• Ensure that the instrument is used at 0 to 50 ° C Ambient Temperature;
• Avoid operating in environments with relative humidity exceeding 100%;
• Use 1.5V AA batteries (3 pcs) and pay attention to the battery status indicator;
• Automatic shutdown after 15 minutes of no operation to save power;
• Regularly use the CAL CheckTM function for performance verification;
Follow Good Laboratory Practice (GLP) to record calibrated dates and times.
• Use a standard reaction cup with a diameter of 24.6mm and an inner diameter of 22mm;
• Measurement range is limited to 0.00 to 3.50 mg/L (as SDBS) to avoid use beyond the range.
