Overview
The HI97711 residual chlorine/free chlorine/total chlorine photometer is an IP67 waterproof compliant High Accuracy measuring instrument with an innovative Optical inspection system design, with CAL Check ™ function to support NIST traceability standards for performance verification and calibrate, support for powder or water Measuring method, built-in reaction Timer to ensure conformity of results, can automatically record 50 measurement readings and display GLP information.
Features
1. LED Illuminants provide stable Illuminants with low Energy consumption and ignore their own heat effects.
The 2.8 nm Narrowband Interference filter is accurate to +/- 1 nm, increasing Absorbance by 25% and ensuring Measurement accuracy.
3. Internal reference system compensates for battery voltage and Ambient Temperature drift for fast and stable readings.
4. Concave focusing lenses reduce Glass Cuvette defects and scratch errors.
5. The CAL Check ™ function supports NIST traceability standard verification and calibrate, providing step-by-step guidance.
Principle
The photometer features an LED Illuminant and an 8 nm narrowband Interference filter for accurate wavelength measurement Absorbance, an internal reference system automatically adjusts Illuminant output to compensate for external factors, a concave focusing lens aggregates transmitted light to reduce errors, and a CAL Check ™ function uses NIST standards for performance verification to ensure accuracy and Repeatability of measurement results.
Applications
Water quality monitoring, environment testing, industrial process control, laboratory analysis
Standards
IP67 waterproof standard, EPA 330.5 DPD method standard
Steps
1. Turn on the device and check the battery status.
2. Measuring method (powder or water).
3. Use CAL Check ™ function for performance verification and calibrate.
4. Prepare the sample and place it in the Cuvette.
5. Start the built-in Reaction Timer for measurement.
6. Read and record measurement results.
7. The device automatically stores data or saves it manually.
Notice
Make sure the battery is fully charged to avoid measurement interruptions.
• Carry out CAL Check ™ verification before use to ensure accuracy.
• Avoid Cuvette defects or scratches to reduce errors.
• Operate at 0 to 50 ° C Ambient Temperature to protect against extreme conditions.
• The device will automatically shut down after 15 minutes of no operation, pay attention to saving the data in time.
