Overview
The HI97735 Total Hardness Portable Photometer is designed with an innovative Optical inspection system for good accuracy, repeatability and measurement efficiency. Its CAL CheckTM function allows performance verification and calibrating using NIST traceability standards, built-in reaction Timer ensures measurement result conformity, supports GLP function to display last calibrated information, and is equipped with battery status indication and automatic shutdown function.
Features
1. LED high quality Illuminant system with good performance and high luminous efficiency
2. High Quality Optical inspection Filter with High Measurement Stability and Less Wavelength Error
3. Unique reference detector for fast and stable readings between blank and sample measurements
4. Stable Illuminant Settings to Reduce Errors Caused by Glass Colorimetric Cup Defects
5. Optical inspection system design to ensure good accuracy and repeatability
6. CAL CheckTM function supports NIST traceability standard verification and calibrating
7. Built-in Reaction Timer guarantees measurement result conformity
8. GLP function shows last user calibrated date and time
9. Battery status indicator and automatic shutdown settings
Principle
Based on the Optical inspection Measurement principle, the photometer emits specific wavelength rays of light through the LED Illuminant. After the sample is absorbed, it is received by the Silicon Photocell, photovoltaic cell Detector. The high-quality Optical inspection filter and unique reference detector system enable accurate measurement of total Hardness in water samples. The CAL CheckTM function uses NIST traceability standards for instrument performance verification.
Applications
Water quality testing, environment monitoring, industrial water analysis
Standards
EPA Recommendation 130.1
Steps
1. Prepare sample and add to Colorimetric cup
2. Blank (zero) measurement calibrated
3. Put in the sample to be tested
4. Start the measurement program, built-in Timer automatic timing
5. Read and record measurement results
6. The instrument automatically stores data
Notice
• Make sure the battery is fully charged before use
• Keep Ambient Temperature in the range of 0-50 ° C during measurement
• Avoid using the instrument in a condensing environment
• Regularly calibrated with NIST traceability standards
• The instrument will automatically shut down after 15 minutes of no operation
• Make sure Colorimetric Cups are clean without defects
Measurement range selection method (LR/MR/HR)
