HI 97771 is an advanced portable photometer for the measurement of free and ultra high range total chlorine in water. This meter offers a superior optical system that utilizes a reference detector and narrow band interference filters for extremely fast and repeatable measurements.

• No warm up time before taking a measurement
• Tutorial mode for step-by-step instructions
• Readings up to 500 mg/L total chlorine

Specifications:

• Free Chlorine Range: 0.00 to 5.00 mg/L (as Cl2)
• Free Chlorine Resolution: 0.01 mg/L
• Free Chlorine Accuracy: ±0.03 mg/L ±3% of reading
• Total Chlorine Range: 0 to 500 mg/L (as Cl2)
• Total Chlorine Resolution: 1 mg/L
• Total Chlorine Accuracy: ±3 mg/L ±3% of reading
• Chlorine Method: free chlorine - adaptation of the EPA 330.5 DPD method total chlorine: adaptation of the Standard Methods for Examination of Water and Wastewater, 20th edition, 4500-Cl.
• Photometer/Colorimeter Light Source: Light emitting diode
• Photometer/Colorimeter Light Detector: silicon photocell with narrow band interference filter @ 525 nm
• Bandpass Filter Bandwidth: 8 nm
• Bandpass Filter Wavelength Accuracy:±1.0 nm
• Cuvette Type: round, 24.6 mm diameter (22 mm inside)
• Logging Type: automatic logging
• Logging Memory: 50 measurement

960-615-02 is supplied with: cuvettes (2), caps (2), plastic inserts for cuvettes (2), 1.5V AA batteries (3), instruction manual, and instrument quality certificate

960-615-04 is supplied with: CAL-Check standards, cuvettes (2), caps (2), plastic inserts for cuvettes (2), scissors, cuvette cleaning cloth, 1.5V AA batteries (3), instruction manual, and instrument quality certificate.